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Rahul R

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Everything posted by Rahul R

  1. Which version of Solidthinking Inspire you ar using?
  2. All the model are available in Thermal ebook. https://altairuniversity.com/free-ebook-thermal-analysis-with-optistruct/
  3. Can you first try with PARAM LGDISP 1 If it error out then,try with PARAM EXPERTNL with & without CNTSTB . Note:It is not generally recommended to change the default values. Varying the tolerances or excluding criteria may help achieve a solution, but will affect the result accuracy.
  4. TIC is only applied during the initial phase of the analysis .Typically springback is quasi-static & you can do it within NLSTAT with enforced displacement SPC/SPCD. You could refer to below OS verification example. OS-V: 0250 3D Sheet Metal Forming
  5. Refer connection: weld https://web.altair.com/altair-for-simlab-learning-center-trls
  6. The vector orientation method works the same way for CBUSH’s as it does for CBAR/BEAM. For vector orientation: Element x axis will always be the direction defined from node A to node B on the CBUSH Element y axis will be defined by the perpendicular component of the vector you define with N1N2N3. Are you comfortable with how the N1N2N3 collector works? Element z axis will be cross of x,y Align with the local system x axis The N1N2N3 vector you define will align with y
  7. Please refer attached document. MV-7012_Functional_Mockup_Unit_(FMU)_in_MotionView_and_MotionSolve.pdf
  8. I would suggest you to use the same parameter file with 2019.0 version where new and powerful mesh flow algorithm is used.
  9. Which version of HyperMesh you are using?
  10. Please refer attached document.You could also refer OptiStruct user guide :Element section Interpretation of Results for Composites Failure Criteria for Composite Laminated Shells Final Failure Index for Composite Element Failure Index for Composite Elements.pdf
  11. FPA screenshot for suggested optimization problem formulations:
  12. Could you please share the .out file of the run? Note: Pretension can be modeled with either 1D or 3D bolts.
  13. Please delete the control card you defined. You could use thermal compliance as response instead of weighted compliance for thermal optimization.
  14. Could you please share the screenshot or .hstx file for the issue you are facing?
  15. Please refer attached material for convergence plot with OptiStruct 2017. plot_convergence_nlstat.pdf
  16. I think SPC is creating a problem.You should constrain all dof for SPC and use RBE2 rather constraining edges directly.
  17. You could refer to OptiStruct online help where we have section for Error Message Database.
  18. Any specific reason for using shell? You could also try RSSCON – Shell-to-Solid Element Connector. Would be good if you could share the hm file.
  19. Could you also share the .out file of the run?
  20. FASTCONT was developed only for nonlinear analysis.You cannot implement FASTCONT for FRF analysis. You can perform FRF analysis for above shared structure.
  21. I am not sure what exactly you want. HyperLife is an easy-to-learn fatigue analysis software developed on a solver-neutral framework. It provides a comprehensive tool set for durability analysis, directly interfacing with all the major finite element analysis (FEA) and multi-body dynamics (MBS) result files. With an embedded material library, HyperLife offers solutions for fatigue life predictions under static and transient loading across a wide range of industrial applications. You could refer to online HyperLife tutorials for more details.
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