Simcenter 3D Solutions RBE 3 Elements with weights

2024-10-07T15:12:59.000-0400
Simcenter 3D

Summary

How can I setup weighting factors for RBE3 elements? What are the inputs to Nastran? What are my forces?


Details

RBE3 – DOF Weights.

How can I setup weighting factors for RBE3 elements?  What are the inputs to Nastran? What are my forces?

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Demo Model

  • Fixed Bottom
  • Load 25 lb
  • 25 RBE3 Connections

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With option checked

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NASTRAN syntax preview from NX

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Nastran input file

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Resulting Nodal force report

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With weights

  • Load of 25 lb  NOT equally distributed to each leg.
  • More load to shorter legs
  • Less load to longer legs

 

 

 

 

 

DOF Weights toggled off

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NASTRAN syntax preview from NX

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Nastran input file

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  • Load of 25 lb equally distributed to each leg.

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KB Article ID# KB000130920_EN_US

Contents

SummaryDetails

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