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Rahul R

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Everything posted by Rahul R

  1. Could you please try running this with OptiStruct 2019 or higher version?If possible please share the required .Fem file available in my signature.Files uploaded in dropbox is not working.
  2. Currently shell and membrane for MATHE is not supported.PFA highlights of OptiStruct 2019.1.
  3. Defines the properties of nonlinear hyperelastic solidelements, referenced by CHEXA, CPENTA, and CTETRA Bulk Data Entries. The MATHE hyperelasticmaterial can be referenced to define corresponding material properties.
  4. Either the PSOLID or PLSOLID Bulk Data Entry can be used to reference the MATHE Bulk Data Entry.
  5. Do you want to measure the difference between two curves for optimization?
  6. Rahul R


    Tabled1 in OptiStruct is to defines a tabular function for use in generating frequency-dependent and time-dependent dynamic loads.
  7. DEQUATION needs to be referenced to DRESP2. Here is an example. $ DRESP1 1 R1 STRESS ELEM SVM3 1 DRESP1 2 R2 STRESS PSHELL SVM4 1 DRESP2 3 MA 1 + DRESP1L 4 0 + DRESP1L 2 2 DRESP1 4 vol VOLUME DEQATN 1 f(a,b)=a+b $ Please check your OS solver deck. Hope it helps.
  8. Could you please share the .out file of the run? Also if RBE3s in the models that is causing the issues then remove and replace it with RBE2s.
  9. Responses defined in DRESP2 can be used as design objectives or constraints. Please refer attached document for same. DRESP2_and_DRESP3.pdf
  10. The sensitivity is available for retained response. You can use DSCREEN to retain the responses. See the user’s guide for Gradient-based Optimization Method. Gradient Based.pdf
  11. Radiation heat transfer is not yet supported in OptiStruct.You could check for Altair Radioss & Altair AcuSolve for such cases.
  12. Dear All, Please check below video to gain benefit, if you use the Part-Browser instead of assemblies. Assemblies_PartBrowser.mp4
  13. Could you pleas make sure to keep elements that are part of the optimization design-space must have a separate property card from the non-design elements.
  14. You could check for Altair OptiStruct and Altair Seam for above requirements.
  15. PFA 1_Quick_Free_Free_Modal.zip 1_Quick_Free_Free_Modal.7z
  16. As per the message mentioned in status bar this import needs separate licence or try importing in other cad format.
  17. https://web.altair.com/altair-for-aerospace-learning-center
  18. Are you using Student Edition or Full version?
  19. When saving runs from HyperStudy in FluxMotor catalog, the name of the HyperStudy approach is used in the motor name, and since HyperStudy 2019.1 version, this approach name can contain dash, which is a forbidden character in motor names, causing a failure when the motor is saved in the catalog dedicated to the current optimization project.This seems to be an issue and may get resolved in upcoming version of Fluxmotor. If it too urgent then I would recommend you to use HyperStudy 2019 to bypass this issue.
  20. I don't think this is error.If it is error, then it would have listed out with some message in the status bar. Note: Its always recommended to use the latest version(For 2017version the latest patch was 2017.3 and for current version 2019 the latest patch is 2019.1)
  21. I see you are using HyperStudy 2017.1 and would suggest you refer attached document for ARSM based optimization algorithm for termination of optimization. ARSM 2017.2.pdf
  22. Could you please share the screenshot of message log of HyperStudy?If possible please share .xml or .hstudy file.
  23. Can you try this with the latest version of HyperStudy 2019.1.
  24. Which optimization method you are using?Also try by setting the ignore failed evaluation.
  25. Which version of HyperStudy and Flux you are using?
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