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Optimization of a FEA Beam Element Model for Computational Speed and Accuracy

Optimization of a FEA Beam Element Model for Computational Speed and Accuracy. Brent Weight and Ryan Weight. Constant-Force Electrical Contact. Constant-Force Electrical Contact Cont. General Model. Keypoints and Line elements Lines divided into elements BC’s and Loads.

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Optimization of a FEA Beam Element Model for Computational Speed and Accuracy

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  1. Optimization of a FEA Beam Element Model for Computational Speed and Accuracy Brent Weight and Ryan Weight

  2. Constant-Force Electrical Contact

  3. Constant-Force Electrical Contact Cont.

  4. General Model • Keypoints and Line elements • Lines divided into elements • BC’s and Loads

  5. General Model - Deflection

  6. FEA Optimization • Optimization requires numerous model calls • Computationally expensive Can we reduce the model run time?

  7. Element Methods Can we minimize the number of elements needed for an accurate model? • Proportional Method Shorter beams have less elements • Equal Method Each beam as same number of elements

  8. Linear vs. Nonlinear Are linear elements sufficient for an accurate model?

  9. EqualMethod ProportionalMethod Convergence

  10. Time Savings 47 % Savings Results

  11. Conclusion • Minimization results in significant time savings • Minimum of 9 elements per beam required • Linearization will not work on this model

  12. Questions?

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