Net structure object

Class containing a net object.

Collaboration diagram for Net structure object:

Author

Karl-Johan Reite

Todo:

Finish documentation and make complete example file.

Example configuration excerpt

<Lib
   LibName                = "marine_elements"
   SimObject              = "Net/NetStructure"
   Name                   = "NET"
   UseTagForExternalNodes = "true"
   AddedDragPerMPS        = "0"
   File                   = "NetStructureInput.xml"
   LineVisualization      = "false"
/>

Note

The simulation must include an Environment, e.g. DefaultEnvironment found in fhsim_base.

Example NetStructure configuration file

The simobjects input-file takes an argument File (or BinaryFile), which specifies a path to a file. This file contains parameters general to the Net Structure component, and specific to the cable objects.

<Net>
   <General
      MaxNumPanels           = "100"
      MaxNumCables           = "100"
      MaxNumNodes            = "6"
      MinElementLength       = "1"
      MaxElementLengthFactor = "1025"
      MaxStepLength          = "1"
      MaxTension             = "1e-10"
      MeanTension            = "1e10"
      MinLength              = "0"
      StepSafetyFactor       = "50"
      AdaptationPeriod       = "0"
      MassFactor             = "1"
      MaxAcceleration        = "1e20"
      MaxVelocity            = "0"
      Scale                  = "1"
      FoldingPointRefinement = "0"
      TwineColour            = "1,1,1,1"
   />
   <ExternalNodeMap
      NodesInputForce        = "0,0,0"
      NodesOutputPosAndVel   = "0,0,0"
   </
   <NetElements
      Name         = "7"
      Conn         = "0,0,0,0"
      PosAMesh     = "0,0"
      PosBMesh     = "0,0"
      PosCMesh     = "0,0"
      PosDMesh     = "0,0"
      BarD         = "0"
      BarL         = "0"
      BarE         = "0"
      BarRho       = "0"
      Refinefactor = "1"
      TwineColour  = "1,1,1,1"
   />
  <CableElements
      Conn                    = "0,0,0,0"
      Name                    = "???"
      D                       = "0"
      L                       = "0"
      E                       = "0"
      Rho                     = "0"
      RefineFactor            = "1"
      MaxTension              = "100e4"
      MaxStep                 = "1000"
      MeanTension             = "0"
      MinLength               = "0.001"
      StepSafetyFactor        = "50"
      AdaptationPeriod        = "0"
      NoOfFoldingPoints       = "0"
      TangentialFrictionCoeff = "0.03"
      NormalDragCoeff         = "1.2"
      Material                = "Trawl/Wire2"
      DrawScale               = "1.0"
      NumFaces                = "5"
      NumSpheres              = "5"
      SphereD                 = "0.05"
      SphereMass              = "10"
      SpherePos               = "0,0,0"
      NumDisks                = "2"
      DiskD                   = "0.1"
      DiskThickness           = "0.001"
      DiskMass                = "10"
      DiskPos                 = "1,0,0"
   />
</Net>

Input Ports

Name	Width	Description
<???>Force...<???>Force	3	Only if external node tags are used ...
ExternalForce<???>...ExternalForce<???>	3	Only if external node tags are NOT used ...

Output Ports

Name	Width	Description
<???>Force...<???>Force	3	Only if external node tags are used ...
<???>ExternalForce...<???>ExternalForce	3	Only if external node tags are NOT used ...
<???>Pos...<???>Pos	3	Only if external node tags are used...
<???>ExternalPos...<???>ExternalPos	3	Only if external node tags are NOT used ...
<???>Vel...<???>Vel	3	Only if external node tags are used ...
<???>ExternalVel...<???>ExternalVel	3	Only if external node tags are NOT used ...
BottomContact	6	???
VelNorm	1	???
StrainEnergy	1	???

Configuration parameters in the main input file to the NetStructure-simObject

Name	Width	Description
???	???	???

Configuration parameters in the General-tag of the input file in the Net-tag.

Name	Width	Description
???	???	???

Configuration parameters in the ExternalNodeMap-tag of the input file in the Net-tag.

Name	Width	Description
???	???	???

Configuration parameters in the NetElements-tag of the input file in the Net-tag.

Name	Width	Description
???	???	???

Configuration parameters in the CableElements-tag of the input file in the Net-tag.

Name	Width	Description
???	???	???

Initial conditions

Name	Width	Description
Pos_1...Pos_<???>	3	???
Vel_1...Vel_<???>	3	???

Full example file

<Contents>
   <OBJECTS>
      <Lib LibName                   = "base"
           SimObject                 = "DefaultEnvironment"
           Name                      = "Environment"
           Seadepth                  = "190"
           Density                   = "1000"
           CurrentVelocity           = "1,0,0"
           />
 
      <Lib LibName                   = "marine_elements"
           SimObject                 = "Net/NetStructure"
           Name                      = "Net"
           File                      = "Morenot520Simple.xml"
           NodesInputForce           = "PWing1, PWing2, PWing8, SWing1, SWing2, SWing8"
           NodesOutputPosAndVel      = "PWing1, PWing2, PWing8, SWing1, SWing2, SWing8"
           Scale                     = "1"
           />
   </OBJECTS>
 
   <INTERCONNECTIONS>
      <Connection
            Net.PWing1Force           = "0,0,0"
            Net.SWing1Force           = "0,0,0"
            Net.PWing2Force           = "0,0,0"
            Net.SWing2Force           = "0,0,0"
            Net.PWing8Force           = "0,0,0"
            Net.SWing8Force           = "0,0,0"
            />
   </INTERCONNECTIONS>
 
   <INITIALIZATION>
      <InitialCondition
            />
   </INITIALIZATION>
 
   <INTEGRATION>
      <Engine
            IntegratorMethod          = "2"
            NumCores                  = ""
            TOutput                   = "0, 1, 300"
            LogStates                 = "0"
            Stepsize                  = "0"
            HMax                      = "0.03"
            HMin                      = "1E-060"
            AbsTol                    = "0.001"
            RelTol                    = "0.001"
            UseRSSNormInsteadOfInfNorm= "0"
            FinalStatesFile           = "states.txt"
            InitialStatesFile         = ""
            FileOutput                = ""
            />
   </INTEGRATION>
</Contents>

Net structure definition file

<Net>
  <General
    NumPanels                    = "40"
    NumCables                    = "32"
    MaxElementLength             = "1.798E+308"
    MinElementLength             = "2.225E-308"
    MaxNumNodes                  = "2147483647"
    MaxNumPanels                 = "0"
    MaxNumCables                 = "2147483647"
    MaxElementLengthFactor       = "1.798E+308"
    MaxStepLength                = "0.001"
    AdaptationPeriod             = "0"
    MeanCableTension             = "0"
    StepSafetyFactor             = "50"
    MaxTension                   = "1E+005"
    MaxStep                      = "0.001"
    MeanTension                  = "0"
    MinLength                    = "0.1"
    MassFactor                   = "2"
    MaxAcceleration              = "10"
    MaxVelocity                  = "0"
    TwineColour                  = "0.1, 0.3, 0.2, 0.5"
  />
  <ExternalNodeMap
    PWing1                       = "8"
    PWing2                       = "8"
    PWing3                       = "8"
    PWing4                       = "8"
    PWing5                       = "31"
    PWing6                       = "31"
    PWing7                       = "42"
    PWing8                       = "42"
    PHeadlineSide                = "11"
    PHeadlineC                   = "6"
    PFishlineSide                = "40"
    PFishlineC                   = "23"
    PCodend                      = "17"
    SWing1                       = "10"
    SWing2                       = "10"
    SWing3                       = "10"
    SWing4                       = "10"
    SWing5                       = "39"
    SWing6                       = "39"
    SWing7                       = "45"
    SWing8                       = "45"
    SHeadlineSide                = "14"
    SHeadlineC                   = "6"
    SFishlineSide                = "43"
    SFishlineC                   = "23"
    SCodend                      = "17"
  />
  <NetElements>
    <El1
      PosAMesh                  = "54.8, 30.05"
      PosBMesh                  = "42.43, 42.43"
      PosCMesh                  = "0, 0"
      BarD                      = "0.008"
      BarE                      = "2E+008"
      BarL                      = "0.0775"
      BarRho                    = "1100"
      RefineFactor              = "1"
      TwineColour               = "0.2, 0.4, 0.2, 0.5"
      Conn                      = "24,0,17"
    />
    <El2
      PosAMesh                  = "42.43, 42.43"
      PosBMesh                  = "30.05, 54.8"
      PosCMesh                  = "0, 0"
      BarD                      = "0.008"
      BarE                      = "2E+008"
      BarL                      = "0.0775"
      BarRho                    = "1100"
      RefineFactor              = "1"
      TwineColour               = "0.2, 0.4, 0.2, 0.5"
      Conn                      = "0,32,17"
    />
    <El3
      PosAMesh                  = "188.4, 122.7"
      PosBMesh                  = "155.6, 155.6"
      PosCMesh                  = "42.43, 42.43"
      PosDMesh                  = "63.64, 21.21"
      BarD                      = "0.008"
      BarE                      = "2E+008"
      BarL                      = "0.0775"
      BarRho                    = "1100"
      RefineFactor              = "1"
      TwineColour               = "0.2, 0.4, 0.2, 0.5"
      Conn                      = "25,1,0,24"
    />
    <El4
      PosAMesh                  = "155.6, 155.6"
      PosBMesh                  = "122.7, 188.4"
      PosCMesh                  = "21.21, 63.64"
      PosDMesh                  = "42.43, 42.43"
      BarD                      = "0.008"
      BarE                      = "2E+008"
      BarL                      = "0.0775"
      BarRho                    = "1100"
      RefineFactor              = "1"
      TwineColour               = "0.2, 0.4, 0.2, 0.5"
      Conn                      = "1,33,32,0"
    />
    <El5
      PosAMesh                  = "204, 127.6"
      PosBMesh                  = "165.8, 165.8"
      PosCMesh                  = "155.6, 155.6"
      PosDMesh                  = "188.4, 122.7"
      BarD                      = "0.007"
      BarE                      = "1E+009"
      BarL                      = "0.0775"
      BarRho                    = "1100"
      RefineFactor              = "1"
      TwineColour               = "0.1, 0.3, 0.2, 0.5"
      Conn                      = "26,2,1,25"
    />
    <El6
      PosAMesh                  = "165.8, 165.8"
      PosBMesh                  = "127.6, 204"
      PosCMesh                  = "122.7, 188.4"
      PosDMesh                  = "155.6, 155.6"
      BarD                      = "0.007"
      BarE                      = "1E+009"
      BarL                      = "0.0775"
      BarRho                    = "1100"
      RefineFactor              = "1"
      TwineColour               = "0.1, 0.3, 0.2, 0.5"
      Conn                      = "2,34,33,1"
    />
    <El7
      PosAMesh                  = "251.7, 142.8"
      PosBMesh                  = "197.3, 197.3"
      PosCMesh                  = "165.8, 165.8"
      PosDMesh                  = "204.4, 127.3"
      BarD                      = "0.003"
      BarE                      = "1E+009"
      BarL                      = "0.0775"
      BarRho                    = "1100"
      RefineFactor              = "1"
      TwineColour               = "0.1, 0.3, 0.2, 0.5"
      Conn                      = "27,3,2,26"
    />
    <El8
      PosAMesh                  = "197.3, 197.3"
      PosBMesh                  = "142.8, 251.7"
      PosCMesh                  = "127.3, 204.4"
      PosDMesh                  = "165.8, 165.8"
      BarD                      = "0.003"
      BarE                      = "1E+009"
      BarL                      = "0.0775"
      BarRho                    = "1100"
      RefineFactor              = "1"
      TwineColour               = "0.1, 0.3, 0.2, 0.5"
      Conn                      = "3,35,34,2"
    />
    <El9
      PosAMesh                  = "346.8, 174.3"
      PosBMesh                  = "260.6, 260.6"
      PosCMesh                  = "197.3, 197.3"
      PosDMesh                  = "252.1, 142.5"
      BarD                      = "0.003"
      BarE                      = "1E+009"
      BarL                      = "0.0775"
      BarRho                    = "1100"
      RefineFactor              = "1"
      TwineColour               = "0.1, 0.3, 0.2, 0.5"
      Conn                      = "28,4,3,27"
    />
    <El10
      PosAMesh                  = "260.6, 260.6"
      PosBMesh                  = "174.3, 346.8"
      PosCMesh                  = "142.5, 252.1"
      PosDMesh                  = "197.3, 197.3"
      BarD                      = "0.003"
      BarE                      = "1E+009"
      BarL                      = "0.0775"
      BarRho                    = "1100"
      RefineFactor              = "1"
      TwineColour               = "0.1, 0.3, 0.2, 0.5"
      Conn                      = "4,36,35,3"
    />
    <El11
      PosAMesh                  = "394.6, 189.5"
      PosBMesh                  = "292, 292"
      PosCMesh                  = "260.6, 260.6"
      PosDMesh                  = "347.2, 173.9"
      BarD                      = "0.003"
      BarE                      = "1E+009"
      BarL                      = "0.0775"
      BarRho                    = "1100"
      RefineFactor              = "1"
      TwineColour               = "0.1, 0.3, 0.2, 0.5"
      Conn                      = "29,5,4,28"
    />
    <El12
      PosAMesh                  = "292, 292"
      PosBMesh                  = "189.5, 394.6"
      PosCMesh                  = "173.9, 347.2"
      PosDMesh                  = "260.6, 260.6"
      BarD                      = "0.003"
      BarE                      = "1E+009"
      BarL                      = "0.0775"
      BarRho                    = "1100"
      RefineFactor              = "1"
      TwineColour               = "0.1, 0.3, 0.2, 0.5"
      Conn                      = "5,37,36,4"
    />
    <El13
      PosAMesh                  = "451.5, 201.2"
      PosBMesh                  = "336.9, 315.7"
      PosCMesh                  = "394.9, 189.2"
      BarD                      = "0.003"
      BarE                      = "1E+009"
      BarL                      = "0.0775"
      BarRho                    = "1100"
      RefineFactor              = "1"
      TwineColour               = "0.1, 0.3, 0.2, 0.5"
      Conn                      = "30,11,29"
    />
    <El14
      PosAMesh                  = "336.9, 315.7"
      PosBMesh                  = "326.3, 326.3"
      PosCMesh                  = "292, 292"
      PosDMesh                  = "394.9, 189.2"
      BarD                      = "0.003"
      BarE                      = "1E+009"
      BarL                      = "0.0775"
      BarRho                    = "1100"
      RefineFactor              = "1"
      TwineColour               = "0.1, 0.3, 0.2, 0.5"
      Conn                      = "11,6,5,29"
    />
    <El15
      PosAMesh                  = "326.3, 326.3"
      PosBMesh                  = "315.7, 336.9"
      PosCMesh                  = "189.2, 394.9"
      PosDMesh                  = "292, 292"
      BarD                      = "0.003"
      BarE                      = "1E+009"
      BarL                      = "0.0775"
      BarRho                    = "1100"
      RefineFactor              = "1"
      TwineColour               = "0.1, 0.3, 0.2, 0.5"
      Conn                      = "6,14,37,5"
    />
    <El16
      PosAMesh                  = "315.7, 336.9"
      PosBMesh                  = "201.2, 451.5"
      PosCMesh                  = "189.2, 394.9"
      BarD                      = "0.003"
      BarE                      = "1E+009"
      BarL                      = "0.0775"
      BarRho                    = "1100"
      RefineFactor              = "1"
      TwineColour               = "0.1, 0.3, 0.2, 0.5"
      Conn                      = "14,38,37"
    />
    <El17
      PosAMesh                  = "485.8, 207.2"
      PosBMesh                  = "402, 291"
      PosCMesh                  = "331.3, 321.4"
      PosDMesh                  = "445.5, 207.2"
      BarD                      = "0.004"
      BarE                      = "1E+009"
      BarL                      = "0.0775"
      BarRho                    = "1100"
      RefineFactor              = "1"
      TwineColour               = "0.1, 0.3, 0.2, 0.5"
      Conn                      = "31,12,11,30"
    />
    <El18
      PosAMesh                  = "402, 291"
      PosBMesh                  = "485.8, 207.2"
      PosCMesh                  = "445.5, 207.2"
      PosDMesh                  = "331.3, 321.4"
      BarD                      = "0.004"
      BarE                      = "1E+009"
      BarL                      = "0.0775"
      BarRho                    = "1100"
      RefineFactor              = "1"
      TwineColour               = "0.1, 0.3, 0.2, 0.5"
      Conn                      = "15,39,38,14"
    />
    <El19
      PosAMesh                  = "519.7, 207.2"
      PosBMesh                  = "461.4, 265.5"
      PosCMesh                  = "402, 291"
      PosDMesh                  = "485.8, 207.2"
      BarD                      = "0.004"
      BarE                      = "1E+009"
      BarL                      = "0.0775"
      BarRho                    = "1100"
      RefineFactor              = "1"
      TwineColour               = "0.1, 0.3, 0.2, 0.5"
      Conn                      = "7,13,12,31"
    />
    <El20
      PosAMesh                  = "461.4, 265.5"
      PosBMesh                  = "519.7, 207.2"
      PosCMesh                  = "485.8, 207.2"
      PosDMesh                  = "402, 291"
      BarD                      = "0.004"
      BarE                      = "1E+009"
      BarL                      = "0.0775"
      BarRho                    = "1100"
      RefineFactor              = "1"
      TwineColour               = "0.1, 0.3, 0.2, 0.5"
      Conn                      = "16,9,39,15"
    />
    <El21
      PosAMesh                  = "625.8, 207.2"
      PosBMesh                  = "461.4, 265.5"
      PosCMesh                  = "519.7, 207.2"
      BarD                      = "0.004"
      BarE                      = "1E+009"
      BarL                      = "0.0775"
      BarRho                    = "1100"
      RefineFactor              = "1"
      TwineColour               = "0.1, 0.3, 0.2, 0.5"
      Conn                      = "8,13,7"
    />
    <El22
      PosAMesh                  = "625.8, 207.2"
      PosBMesh                  = "519.7, 207.2"
      PosCMesh                  = "461.4, 265.5"
      BarD                      = "0.004"
      BarE                      = "1E+009"
      BarL                      = "0.0775"
      BarRho                    = "1100"
      RefineFactor              = "1"
      TwineColour               = "0.1, 0.3, 0.2, 0.5"
      Conn                      = "10,9,16"
    />
    <El23
      PosAMesh                  = "42.43, 42.43"
      PosBMesh                  = "54.8, 30.05"
      PosCMesh                  = "0, 0"
      BarD                      = "0.008"
      BarE                      = "2E+008"
      BarL                      = "0.0775"
      BarRho                    = "1100"
      RefineFactor              = "1"
      TwineColour               = "0.2, 0.4, 0.2, 0.5"
      Conn                      = "18,24,17"
    />
    <El24
      PosAMesh                  = "30.05, 54.8"
      PosBMesh                  = "42.43, 42.43"
      PosCMesh                  = "0, 0"
      BarD                      = "0.008"
      BarE                      = "2E+008"
      BarL                      = "0.0775"
      BarRho                    = "1100"
      RefineFactor              = "1"
      TwineColour               = "0.2, 0.4, 0.2, 0.5"
      Conn                      = "32,18,17"
    />
    <El25
      PosAMesh                  = "155.6, 155.6"
      PosBMesh                  = "188.4, 122.7"
      PosCMesh                  = "63.64, 21.21"
      PosDMesh                  = "42.43, 42.43"
      BarD                      = "0.008"
      BarE                      = "2E+008"
      BarL                      = "0.0775"
      BarRho                    = "1100"
      RefineFactor              = "1"
      TwineColour               = "0.2, 0.4, 0.2, 0.5"
      Conn                      = "19,25,24,18"
    />
    <El26
      PosAMesh                  = "122.7, 188.4"
      PosBMesh                  = "155.6, 155.6"
      PosCMesh                  = "42.43, 42.43"
      PosDMesh                  = "21.21, 63.64"
      BarD                      = "0.008"
      BarE                      = "2E+008"
      BarL                      = "0.0775"
      BarRho                    = "1100"
      RefineFactor              = "1"
      TwineColour               = "0.2, 0.4, 0.2, 0.5"
      Conn                      = "33,19,18,32"
    />
    <El27
      PosAMesh                  = "165.8, 165.8"
      PosBMesh                  = "204, 127.6"
      PosCMesh                  = "188.4, 122.7"
      PosDMesh                  = "155.6, 155.6"
      BarD                      = "0.007"
      BarE                      = "1E+009"
      BarL                      = "0.0775"
      BarRho                    = "1100"
      RefineFactor              = "1"
      TwineColour               = "0.1, 0.3, 0.2, 0.5"
      Conn                      = "20,26,25,19"
    />
    <El28
      PosAMesh                  = "127.6, 204"
      PosBMesh                  = "165.8, 165.8"
      PosCMesh                  = "155.6, 155.6"
      PosDMesh                  = "122.7, 188.4"
      BarD                      = "0.007"
      BarE                      = "1E+009"
      BarL                      = "0.0775"
      BarRho                    = "1100"
      RefineFactor              = "1"
      TwineColour               = "0.1, 0.3, 0.2, 0.5"
      Conn                      = "34,20,19,33"
    />
    <El29
      PosAMesh                  = "197.3, 197.3"
      PosBMesh                  = "246.8, 147.8"
      PosCMesh                  = "204.4, 127.3"
      PosDMesh                  = "165.8, 165.8"
      BarD                      = "0.004"
      BarE                      = "1E+009"
      BarL                      = "0.0775"
      BarRho                    = "1100"
      RefineFactor              = "1"
      TwineColour               = "0.1, 0.3, 0.2, 0.5"
      Conn                      = "21,27,26,20"
    />
    <El30
      PosAMesh                  = "147.8, 246.8"
      PosBMesh                  = "197.3, 197.3"
      PosCMesh                  = "165.8, 165.8"
      PosDMesh                  = "127.3, 204.4"
      BarD                      = "0.004"
      BarE                      = "1E+009"
      BarL                      = "0.0775"
      BarRho                    = "1100"
      RefineFactor              = "1"
      TwineColour               = "0.1, 0.3, 0.2, 0.5"
      Conn                      = "35,21,20,34"
    />
    <El31
      PosAMesh                  = "260.6, 260.6"
      PosBMesh                  = "331.3, 189.9"
      PosCMesh                  = "247.1, 147.4"
      PosDMesh                  = "197.3, 197.3"
      BarD                      = "0.004"
      BarE                      = "1E+009"
      BarL                      = "0.0775"
      BarRho                    = "1100"
      RefineFactor              = "1"
      TwineColour               = "0.1, 0.3, 0.2, 0.5"
      Conn                      = "22,28,27,21"
    />
    <El32
      PosAMesh                  = "189.9, 331.3"
      PosBMesh                  = "260.6, 260.6"
      PosCMesh                  = "197.3, 197.3"
      PosDMesh                  = "147.4, 247.1"
      BarD                      = "0.004"
      BarE                      = "1E+009"
      BarL                      = "0.0775"
      BarRho                    = "1100"
      RefineFactor              = "1"
      TwineColour               = "0.1, 0.3, 0.2, 0.5"
      Conn                      = "36,22,21,35"
    />
    <El33
      PosAMesh                  = "300.9, 283.2"
      PosBMesh                  = "374.1, 210"
      PosCMesh                  = "331.6, 189.5"
      BarD                      = "0.004"
      BarE                      = "1E+009"
      BarL                      = "0.0775"
      BarRho                    = "1100"
      RefineFactor              = "1"
      TwineColour               = "0.1, 0.3, 0.2, 0.5"
      Conn                      = "40,29,28"
    />
    <El34
      PosAMesh                  = "292, 292"
      PosBMesh                  = "300.9, 283.2"
      PosCMesh                  = "331.6, 189.5"
      PosDMesh                  = "260.6, 260.6"
      BarD                      = "0.004"
      BarE                      = "1E+009"
      BarL                      = "0.0775"
      BarRho                    = "1100"
      RefineFactor              = "1"
      TwineColour               = "0.1, 0.3, 0.2, 0.5"
      Conn                      = "23,40,28,22"
    />
    <El35
      PosAMesh                  = "283.2, 300.9"
      PosBMesh                  = "292, 292"
      PosCMesh                  = "260.6, 260.6"
      PosDMesh                  = "189.5, 331.6"
      BarD                      = "0.004"
      BarE                      = "1E+009"
      BarL                      = "0.0775"
      BarRho                    = "1100"
      RefineFactor              = "1"
      TwineColour               = "0.1, 0.3, 0.2, 0.5"
      Conn                      = "43,23,22,36"
    />
    <El36
      PosAMesh                  = "210, 374.1"
      PosBMesh                  = "283.2, 300.9"
      PosCMesh                  = "189.5, 331.6"
      BarD                      = "0.004"
      BarE                      = "1E+009"
      BarL                      = "0.0775"
      BarRho                    = "1100"
      RefineFactor              = "1"
      TwineColour               = "0.1, 0.3, 0.2, 0.5"
      Conn                      = "37,43,36"
    />
    <El37
      PosAMesh                  = "406.9, 245.7"
      PosBMesh                  = "441.9, 210.7"
      PosCMesh                  = "373.4, 210.7"
      PosDMesh                  = "299.5, 284.6"
      BarD                      = "0.007"
      BarE                      = "1E+009"
      BarL                      = "0.0775"
      BarRho                    = "1100"
      RefineFactor              = "1"
      TwineColour               = "0.1, 0.3, 0.2, 0.5"
      Conn                      = "41,30,29,40"
    />
    <El38
      PosAMesh                  = "441.9, 210.7"
      PosBMesh                  = "406.9, 245.7"
      PosCMesh                  = "299.5, 284.6"
      PosDMesh                  = "373.4, 210.7"
      BarD                      = "0.007"
      BarE                      = "1E+009"
      BarL                      = "0.0775"
      BarRho                    = "1100"
      RefineFactor              = "1"
      TwineColour               = "0.1, 0.3, 0.2, 0.5"
      Conn                      = "38,44,43,37"
    />
    <El39
      PosAMesh                  = "449, 245.4"
      PosBMesh                  = "483.7, 210.7"
      PosCMesh                  = "441.9, 210.7"
      PosDMesh                  = "406.9, 245.7"
      BarD                      = "0.007"
      BarE                      = "1E+009"
      BarL                      = "0.0775"
      BarRho                    = "1100"
      RefineFactor              = "1"
      TwineColour               = "0.1, 0.3, 0.2, 0.5"
      Conn                      = "42,31,30,41"
    />
    <El40
      PosAMesh                  = "483.7, 210.7"
      PosBMesh                  = "449, 245.4"
      PosCMesh                  = "406.9, 245.7"
      PosDMesh                  = "441.9, 210.7"
      BarD                      = "0.007"
      BarE                      = "1E+009"
      BarL                      = "0.0775"
      BarRho                    = "1100"
      RefineFactor              = "1"
      TwineColour               = "0.1, 0.3, 0.2, 0.5"
      Conn                      = "39,45,44,38"
    />
  </NetElements>
  <CableElements>
    <El1
      D                         = "0.026"
      E                         = "2.8E+010"
      L                         = "12.4"
      Material                  = "net/wire"
      DrawScale                 = "3"
      Conn                      = "13, 8"
      Rho                       = "2200"
      NumSpheres                = "2"
      SphereD                   = "0.4, 0.4"
      SphereMass                = "3.351, 3.351"
      SpherePos                 = "0.4, 0.7"
      SphereMesh                = "net/floater, net/floater, net/floater"
      NumDisks                  = "0"
      DiskD                     = ""
      DiskThickness             = ""
      DiskMass                  = ""
      DiskPos                   = ""
      DiskMesh                  = ""
      AddedWeightInWater        = "0"
      RefineFactor              = "1"
    />
    <El2
      D                         = "0.026"
      E                         = "2.8E+010"
      L                         = "12.4"
      Material                  = "net/wire"
      DrawScale                 = "3"
      Conn                      = "16, 10"
      Rho                       = "2200"
      NumSpheres                = "2"
      SphereD                   = "0.4, 0.4"
      SphereMass                = "3.351, 3.351"
      SpherePos                 = "0.4, 0.7"
      SphereMesh                = "net/floater, net/floater, net/floater"
      NumDisks                  = "0"
      DiskD                     = ""
      DiskThickness             = ""
      DiskMass                  = ""
      DiskPos                   = ""
      DiskMesh                  = ""
      AddedWeightInWater        = "0"
      RefineFactor              = "1"
    />
    <El3
      D                         = "0.026"
      E                         = "2.8E+010"
      L                         = "5"
      Material                  = "net/wire"
      DrawScale                 = "3"
      Conn                      = "12, 13"
      Rho                       = "2200"
      NumSpheres                = "2"
      SphereD                   = "0.4, 0.4"
      SphereMass                = "3.351, 3.351"
      SpherePos                 = "0.25, 0.5"
      SphereMesh                = "net/floater, net/floater, net/floater"
      NumDisks                  = "0"
      DiskD                     = ""
      DiskThickness             = ""
      DiskMass                  = ""
      DiskPos                   = ""
      DiskMesh                  = ""
      AddedWeightInWater        = "0"
      RefineFactor              = "1"
    />
    <El4
      D                         = "0.026"
      E                         = "2.8E+010"
      L                         = "5"
      Material                  = "net/wire"
      DrawScale                 = "3"
      Conn                      = "15, 16"
      Rho                       = "2200"
      NumSpheres                = "2"
      SphereD                   = "0.4, 0.4"
      SphereMass                = "3.351, 3.351"
      SpherePos                 = "0.25, 0.5"
      SphereMesh                = "net/floater, net/floater, net/floater"
      NumDisks                  = "0"
      DiskD                     = ""
      DiskThickness             = ""
      DiskMass                  = ""
      DiskPos                   = ""
      DiskMesh                  = ""
      AddedWeightInWater        = "0"
      RefineFactor              = "1"
    />
    <El5
      D                         = "0.026"
      E                         = "2.8E+010"
      L                         = "5.9"
      Material                  = "net/wire"
      DrawScale                 = "3"
      Conn                      = "11, 12"
      Rho                       = "2200"
      NumSpheres                = "2"
      SphereD                   = "0.4, 0.4"
      SphereMass                = "3.351, 3.351"
      SpherePos                 = "0.25, 0.5"
      SphereMesh                = "net/floater, net/floater, net/floater"
      NumDisks                  = "0"
      DiskD                     = ""
      DiskThickness             = ""
      DiskMass                  = ""
      DiskPos                   = ""
      DiskMesh                  = ""
      AddedWeightInWater        = "0"
      RefineFactor              = "1"
    />
    <El6
      D                         = "0.026"
      E                         = "2.8E+010"
      L                         = "5.9"
      Material                  = "net/wire"
      DrawScale                 = "3"
      Conn                      = "14, 15"
      Rho                       = "2200"
      NumSpheres                = "2"
      SphereD                   = "0.4, 0.4"
      SphereMass                = "3.351, 3.351"
      SpherePos                 = "0.25, 0.5"
      SphereMesh                = "net/floater, net/floater, net/floater"
      NumDisks                  = "0"
      DiskD                     = ""
      DiskThickness             = ""
      DiskMass                  = ""
      DiskPos                   = ""
      DiskMesh                  = ""
      AddedWeightInWater        = "0"
      RefineFactor              = "1"
    />
    <El7
      D                         = "0.026"
      E                         = "2.8E+010"
      L                         = "1.15"
      Material                  = "net/wire"
      DrawScale                 = "3"
      Conn                      = "11, 6"
      Rho                       = "2200"
      NumSpheres                = "0"
      SphereD                   = ""
      SphereMass                = ""
      SpherePos                 = ""
      SphereMesh                = ""
      NumDisks                  = "0"
      DiskD                     = ""
      DiskThickness             = ""
      DiskMass                  = ""
      DiskPos                   = ""
      DiskMesh                  = ""
      AddedWeightInWater        = "0"
      RefineFactor              = "1"
    />
    <El8
      D                         = "0.026"
      E                         = "2.8E+010"
      L                         = "1.15"
      Material                  = "net/wire"
      DrawScale                 = "3"
      Conn                      = "14, 6"
      Rho                       = "2200"
      NumSpheres                = "1"
      SphereD                   = "0.4"
      SphereMass                = "3.351"
      SpherePos                 = "0"
      SphereMesh                = "net/floater"
      NumDisks                  = "0"
      DiskD                     = ""
      DiskThickness             = ""
      DiskMass                  = ""
      DiskPos                   = ""
      DiskMesh                  = ""
      AddedWeightInWater        = "0"
      RefineFactor              = "1"
    />
    <El9
      D                         = "0.026"
      E                         = "2.8E+010"
      L                         = "11.4"
      Material                  = "net/wire"
      DrawScale                 = "3"
      Conn                      = "9, 10"
      Rho                       = "2200"
      NumSpheres                = "0"
      SphereD                   = ""
      SphereMass                = ""
      SpherePos                 = ""
      SphereMesh                = ""
      NumDisks                  = "0"
      DiskD                     = ""
      DiskThickness             = ""
      DiskMass                  = ""
      DiskPos                   = ""
      DiskMesh                  = ""
      AddedWeightInWater        = "0"
      RefineFactor              = "1"
    />
    <El10
      D                         = "0.026"
      E                         = "2.8E+010"
      L                         = "11.4"
      Material                  = "net/wire"
      DrawScale                 = "3"
      Conn                      = "7, 8"
      Rho                       = "2200"
      NumSpheres                = "0"
      SphereD                   = ""
      SphereMass                = ""
      SpherePos                 = ""
      SphereMesh                = ""
      NumDisks                  = "0"
      DiskD                     = ""
      DiskThickness             = ""
      DiskMass                  = ""
      DiskPos                   = ""
      DiskMesh                  = ""
      AddedWeightInWater        = "0"
      RefineFactor              = "1"
    />
    <El11
      D                         = "0.026"
      E                         = "2.8E+010"
      L                         = "3.6"
      Material                  = "net/wire"
      DrawScale                 = "3"
      Conn                      = "39, 9"
      Rho                       = "2200"
      NumSpheres                = "0"
      SphereD                   = ""
      SphereMass                = ""
      SpherePos                 = ""
      SphereMesh                = ""
      NumDisks                  = "0"
      DiskD                     = ""
      DiskThickness             = ""
      DiskMass                  = ""
      DiskPos                   = ""
      DiskMesh                  = ""
      AddedWeightInWater        = "0"
      RefineFactor              = "1"
    />
    <El12
      D                         = "0.026"
      E                         = "2.8E+010"
      L                         = "3.6"
      Material                  = "net/wire"
      DrawScale                 = "3"
      Conn                      = "31, 7"
      Rho                       = "2200"
      NumSpheres                = "0"
      SphereD                   = ""
      SphereMass                = ""
      SpherePos                 = ""
      SphereMesh                = ""
      NumDisks                  = "0"
      DiskD                     = ""
      DiskThickness             = ""
      DiskMass                  = ""
      DiskPos                   = ""
      DiskMesh                  = ""
      AddedWeightInWater        = "0"
      RefineFactor              = "1"
    />
    <El13
      D                         = "0.026"
      E                         = "2.8E+010"
      L                         = "4.1"
      Material                  = "net/wire"
      DrawScale                 = "3"
      Conn                      = "38, 39"
      Rho                       = "2200"
      NumSpheres                = "0"
      SphereD                   = ""
      SphereMass                = ""
      SpherePos                 = ""
      SphereMesh                = ""
      NumDisks                  = "0"
      DiskD                     = ""
      DiskThickness             = ""
      DiskMass                  = ""
      DiskPos                   = ""
      DiskMesh                  = ""
      AddedWeightInWater        = "0"
      RefineFactor              = "1"
    />
    <El14
      D                         = "0.026"
      E                         = "2.8E+010"
      L                         = "4.1"
      Material                  = "net/wire"
      DrawScale                 = "3"
      Conn                      = "30, 31"
      Rho                       = "2200"
      NumSpheres                = "0"
      SphereD                   = ""
      SphereMass                = ""
      SpherePos                 = ""
      SphereMesh                = ""
      NumDisks                  = "0"
      DiskD                     = ""
      DiskThickness             = ""
      DiskMass                  = ""
      DiskPos                   = ""
      DiskMesh                  = ""
      AddedWeightInWater        = "0"
      RefineFactor              = "1"
    />
    <El15
      D                         = "0.026"
      E                         = "2.8E+010"
      L                         = "7.1"
      Material                  = "net/wire"
      DrawScale                 = "3"
      Conn                      = "37, 38"
      Rho                       = "2200"
      NumSpheres                = "0"
      SphereD                   = ""
      SphereMass                = ""
      SpherePos                 = ""
      SphereMesh                = ""
      NumDisks                  = "0"
      DiskD                     = ""
      DiskThickness             = ""
      DiskMass                  = ""
      DiskPos                   = ""
      DiskMesh                  = ""
      AddedWeightInWater        = "0"
      RefineFactor              = "1"
    />
    <El16
      D                         = "0.026"
      E                         = "2.8E+010"
      L                         = "7.1"
      Material                  = "net/wire"
      DrawScale                 = "3"
      Conn                      = "29, 30"
      Rho                       = "2200"
      NumSpheres                = "0"
      SphereD                   = ""
      SphereMass                = ""
      SpherePos                 = ""
      SphereMesh                = ""
      NumDisks                  = "0"
      DiskD                     = ""
      DiskThickness             = ""
      DiskMass                  = ""
      DiskPos                   = ""
      DiskMesh                  = ""
      AddedWeightInWater        = "0"
      RefineFactor              = "1"
    />
    <El17
      D                         = "0.026"
      E                         = "2.8E+010"
      L                         = "6.6"
      Material                  = "net/wire"
      DrawScale                 = "3"
      Conn                      = "36, 37"
      Rho                       = "2200"
      NumSpheres                = "0"
      SphereD                   = ""
      SphereMass                = ""
      SpherePos                 = ""
      SphereMesh                = ""
      NumDisks                  = "0"
      DiskD                     = ""
      DiskThickness             = ""
      DiskMass                  = ""
      DiskPos                   = ""
      DiskMesh                  = ""
      AddedWeightInWater        = "0"
      RefineFactor              = "1"
    />
    <El18
      D                         = "0.026"
      E                         = "2.8E+010"
      L                         = "6.6"
      Material                  = "net/wire"
      DrawScale                 = "3"
      Conn                      = "28, 29"
      Rho                       = "2200"
      NumSpheres                = "0"
      SphereD                   = ""
      SphereMass                = ""
      SpherePos                 = ""
      SphereMesh                = ""
      NumDisks                  = "0"
      DiskD                     = ""
      DiskThickness             = ""
      DiskMass                  = ""
      DiskPos                   = ""
      DiskMesh                  = ""
      AddedWeightInWater        = "0"
      RefineFactor              = "1"
    />
    <El19
      D                         = "0.026"
      E                         = "2.8E+010"
      L                         = "13.4"
      Material                  = "net/wire"
      DrawScale                 = "3"
      Conn                      = "35, 36"
      Rho                       = "2200"
      NumSpheres                = "0"
      SphereD                   = ""
      SphereMass                = ""
      SpherePos                 = ""
      SphereMesh                = ""
      NumDisks                  = "0"
      DiskD                     = ""
      DiskThickness             = ""
      DiskMass                  = ""
      DiskPos                   = ""
      DiskMesh                  = ""
      AddedWeightInWater        = "0"
      RefineFactor              = "1"
    />
    <El20
      D                         = "0.026"
      E                         = "2.8E+010"
      L                         = "13.4"
      Material                  = "net/wire"
      DrawScale                 = "3"
      Conn                      = "27, 28"
      Rho                       = "2200"
      NumSpheres                = "0"
      SphereD                   = ""
      SphereMass                = ""
      SpherePos                 = ""
      SphereMesh                = ""
      NumDisks                  = "0"
      DiskD                     = ""
      DiskThickness             = ""
      DiskMass                  = ""
      DiskPos                   = ""
      DiskMesh                  = ""
      AddedWeightInWater        = "0"
      RefineFactor              = "1"
    />
    <El21
      D                         = "0.026"
      E                         = "1E+009"
      L                         = "6.6"
      Material                  = "net/wire"
      DrawScale                 = "3"
      Conn                      = "34, 35"
      Rho                       = "1100"
      NumSpheres                = "0"
      SphereD                   = ""
      SphereMass                = ""
      SpherePos                 = ""
      SphereMesh                = ""
      NumDisks                  = "0"
      DiskD                     = ""
      DiskThickness             = ""
      DiskMass                  = ""
      DiskPos                   = ""
      DiskMesh                  = ""
      AddedWeightInWater        = "0"
      RefineFactor              = "1"
    />
    <El22
      D                         = "0.026"
      E                         = "1E+009"
      L                         = "6.6"
      Material                  = "net/wire"
      DrawScale                 = "3"
      Conn                      = "26, 27"
      Rho                       = "1100"
      NumSpheres                = "0"
      SphereD                   = ""
      SphereMass                = ""
      SpherePos                 = ""
      SphereMesh                = ""
      NumDisks                  = "0"
      DiskD                     = ""
      DiskThickness             = ""
      DiskMass                  = ""
      DiskPos                   = ""
      DiskMesh                  = ""
      AddedWeightInWater        = "0"
      RefineFactor              = "1"
    />
    <El23
      D                         = "0.026"
      E                         = "1E+009"
      L                         = "11"
      Material                  = "net/wire"
      DrawScale                 = "3"
      Conn                      = "33, 34"
      Rho                       = "1100"
      NumSpheres                = "0"
      SphereD                   = ""
      SphereMass                = ""
      SpherePos                 = ""
      SphereMesh                = ""
      NumDisks                  = "0"
      DiskD                     = ""
      DiskThickness             = ""
      DiskMass                  = ""
      DiskPos                   = ""
      DiskMesh                  = ""
      AddedWeightInWater        = "0"
      RefineFactor              = "1"
    />
    <El24
      D                         = "0.026"
      E                         = "1E+009"
      L                         = "11"
      Material                  = "net/wire"
      DrawScale                 = "3"
      Conn                      = "25, 26"
      Rho                       = "1100"
      NumSpheres                = "0"
      SphereD                   = ""
      SphereMass                = ""
      SpherePos                 = ""
      SphereMesh                = ""
      NumDisks                  = "0"
      DiskD                     = ""
      DiskThickness             = ""
      DiskMass                  = ""
      DiskPos                   = ""
      DiskMesh                  = ""
      AddedWeightInWater        = "0"
      RefineFactor              = "1"
    />
    <El25
      D                         = "0.016"
      E                         = "1E+011"
      L                         = "4.75"
      Material                  = "net/wire"
      DrawScale                 = "3"
      Conn                      = "41, 42"
      Rho                       = "6000"
      NumSpheres                = "4"
      SphereD                   = "0.5, 0.5, 0.5, 0.5"
      SphereMass                = "261.8, 261.8, 261.8, 261.8"
      SpherePos                 = "0.125, 0.3125, 0.5, 0.6875"
      SphereMesh                = "net/rusty, net/rusty, net/rusty, net/rusty, net/rusty"
      NumDisks                  = "0"
      DiskD                     = ""
      DiskThickness             = ""
      DiskMass                  = ""
      DiskPos                   = ""
      DiskMesh                  = ""
      AddedWeightInWater        = "0"
      RefineFactor              = "1"
    />
    <El26
      D                         = "0.016"
      E                         = "1E+011"
      L                         = "4.75"
      Material                  = "net/wire"
      DrawScale                 = "3"
      Conn                      = "44, 45"
      Rho                       = "6000"
      NumSpheres                = "4"
      SphereD                   = "0.5, 0.5, 0.5, 0.5"
      SphereMass                = "261.8, 261.8, 261.8, 261.8"
      SpherePos                 = "0.125, 0.3125, 0.5, 0.6875"
      SphereMesh                = "net/rusty, net/rusty, net/rusty, net/rusty, net/rusty"
      NumDisks                  = "0"
      DiskD                     = ""
      DiskThickness             = ""
      DiskMass                  = ""
      DiskPos                   = ""
      DiskMesh                  = ""
      AddedWeightInWater        = "0"
      RefineFactor              = "1"
    />
    <El27
      D                         = "0.016"
      E                         = "1E+011"
      L                         = "9.8"
      Material                  = "net/wire"
      DrawScale                 = "3"
      Conn                      = "40, 41"
      Rho                       = "6000"
      NumSpheres                = "0"
      SphereD                   = ""
      SphereMass                = ""
      SpherePos                 = ""
      SphereMesh                = ""
      NumDisks                  = "10"
      DiskD                     = "0.3, 0.3, 0.3, 0.3, 0.3, 0.3, 0.3, 0.3, 0.3, 0.3"
      DiskThickness             = "0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1"
      DiskMass                  = "21.21, 21.21, 21.21, 21.21, 21.21, 21.21, 21.21, 21.21, 21.21, 21.21"
      DiskPos                   = "0.05, 0.14, 0.23, 0.32, 0.41, 0.5, 0.59, 0.68, 0.77, 0.86"
      DiskMesh                  = "net/rubber, net/rubber, net/rubber, net/rubber, net/rubber, net/rubber, net/rubber, net/rubber, net/rubber, net/rubber, net/rubber"
      AddedWeightInWater        = "0"
      RefineFactor              = "1"
    />
    <El28
      D                         = "0.016"
      E                         = "1E+011"
      L                         = "9.8"
      Material                  = "net/wire"
      DrawScale                 = "3"
      Conn                      = "43, 44"
      Rho                       = "6000"
      NumSpheres                = "0"
      SphereD                   = ""
      SphereMass                = ""
      SpherePos                 = ""
      SphereMesh                = ""
      NumDisks                  = "10"
      DiskD                     = "0.3, 0.3, 0.3, 0.3, 0.3, 0.3, 0.3, 0.3, 0.3, 0.3"
      DiskThickness             = "0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1"
      DiskMass                  = "21.21, 21.21, 21.21, 21.21, 21.21, 21.21, 21.21, 21.21, 21.21, 21.21"
      DiskPos                   = "0.05, 0.14, 0.23, 0.32, 0.41, 0.5, 0.59, 0.68, 0.77, 0.86"
      DiskMesh                  = "net/rubber, net/rubber, net/rubber, net/rubber, net/rubber, net/rubber, net/rubber, net/rubber, net/rubber, net/rubber, net/rubber"
      AddedWeightInWater        = "0"
      RefineFactor              = "1"
    />
    <El29
      D                         = "0.016"
      E                         = "1E+011"
      L                         = "1"
      Material                  = "net/wire"
      DrawScale                 = "3"
      Conn                      = "40, 23"
      Rho                       = "6000"
      NumSpheres                = "0"
      SphereD                   = ""
      SphereMass                = ""
      SpherePos                 = ""
      SphereMesh                = ""
      NumDisks                  = "3"
      DiskD                     = "0.3, 0.3, 0.3"
      DiskThickness             = "0.1, 0.1, 0.1"
      DiskMass                  = "21.21, 21.21, 21.21"
      DiskPos                   = "0.2, 0.52, 0.84"
      DiskMesh                  = "net/rubber, net/rubber, net/rubber, net/rubber"
      AddedWeightInWater        = "0"
      RefineFactor              = "1"
    />
    <El30
      D                         = "0.016"
      E                         = "1E+011"
      L                         = "1"
      Material                  = "net/wire"
      DrawScale                 = "3"
      Conn                      = "43, 23"
      Rho                       = "6000"
      NumSpheres                = "0"
      SphereD                   = ""
      SphereMass                = ""
      SpherePos                 = ""
      SphereMesh                = ""
      NumDisks                  = "2"
      DiskD                     = "0.3, 0.3"
      DiskThickness             = "0.1, 0.1"
      DiskMass                  = "21.21, 21.21"
      DiskPos                   = "0.16, 0.48"
      DiskMesh                  = "net/rubber, net/rubber, net/rubber"
      AddedWeightInWater        = "0"
      RefineFactor              = "1"
    />
    <El31
      D                         = "0.016"
      E                         = "1E+011"
      L                         = "3.2"
      Material                  = "net/wire"
      DrawScale                 = "3"
      Conn                      = "31, 42"
      Rho                       = "6000"
      NumSpheres                = "0"
      SphereD                   = ""
      SphereMass                = ""
      SpherePos                 = ""
      SphereMesh                = ""
      NumDisks                  = "0"
      DiskD                     = ""
      DiskThickness             = ""
      DiskMass                  = ""
      DiskPos                   = ""
      DiskMesh                  = ""
      AddedWeightInWater        = "0"
      RefineFactor              = "1"
    />
    <El32
      D                         = "0.016"
      E                         = "1E+011"
      L                         = "3.2"
      Material                  = "net/wire"
      DrawScale                 = "3"
      Conn                      = "39, 45"
      Rho                       = "6000"
      NumSpheres                = "0"
      SphereD                   = ""
      SphereMass                = ""
      SpherePos                 = ""
      SphereMesh                = ""
      NumDisks                  = "0"
      DiskD                     = ""
      DiskThickness             = ""
      DiskMass                  = ""
      DiskPos                   = ""
      DiskMesh                  = ""
      AddedWeightInWater        = "0"
      RefineFactor              = "1"
    />
  </CableElements>
</Net>

This SimObject is referred to as Net/NetStructure