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Rahul R

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Everything posted by Rahul R

  1. Do you get the H3d file after analysis? Note: OptiStruct is solver so you wont get separate user interface .You can submit run from Hypermesh-Optistruct user profile or Hyperworks sover run manager.
  2. Please try to overcome warning 3400.Celas is zero dimensional element and has single degree of freedom at each end.
  3. If you are using HyperWorks student edition then this is the limitation: Solvers cannot be started from a command line (only from within the respective panel in the Graphical User Interface) https://altairuniversity.com/altair-student-edition-limitations/
  4. Please look at attached model.Note that FATLOAD for transient won’t reference TABFAT because the time history is directly available from the analysis. Trans_fatigue.fem
  5. I assume you are running structural analysis using OptiStruct.Under Analysis page:Control cards:GLOBAL OUTPUT REQUEST:STRESS:LOCATION:CORNER
  6. This will get active when you request stress results for corner data while defining output.
  7. Rawgap is the physical gap between two midsurface.You could refer to below TTF for print contact info prior to analysis. Did you define any CLEARANCE? Which version OptiStruct Solver you are running? https://insider.altairhyperworks.com/wp-content/uploads/2018/10/TT-1329-OptiStruct-Print-contact-info-prior-to-analysis.pdf
  8. When HyperStudy is running in EDU mode it is expected to append the altdoctag to solver input decks for OS, RAD and MS when the a Parameterized Model is generating the input file . In the v2019.0 release this does not happen all the time. The root cause has been identified. We will let you know once the fix is available in upcoming version of Student Edition.
  9. We are working on your query. We will get back to you.
  10. You could use DRESP3 . When a desired response is not available from OptiStruct, either directly or via equations, it may be calculated through external user-supplied functions implemented in shared/dynamic libraries or external files as External Responses. Please refer attached document for same. DRESP3.zip
  11. Please refer to the best practices for random response analysis from Resource Library. Random Vibration Best Practices.pdf
  12. Composite laminate definition with solid elements have two main categories although the definition is using solid elements for both the types: 1. Solid Layered Composites 2. Solid Shell Composites (Continuum shell composites) The first type is using regular first order or second solid elements. While using first one, where bending is predominant, solid elements tend to be very stiff. Several layers of solid elements through the thickness are typically required to correctly simulate a structural member in bending. To overcome the above limitation, assumed strain functions are added to the elements to make them behave more like shell elements when loaded in bending. This integration scheme is called Continuum shells. This is what we have the second type. As of now we support only this scheme (Continuum shells). The first type is not yet supported. PFA material for same. Indeed, Multiscale designer has wide range of nonlinear composite materials .The user material MATUSR has been added in HyperMesh 2019.1.1 (full version).Multiscale designer will be a part of Student Edition in upcoming version. Continuum_Shells.zip
  13. Are you looking for Stress-NORM aggregation in topology optimization? You could refer to OptiStruct online help for more detail. We have plenty of tutorial and examples available for optimization.
  14. You could refer to HyperForm (Manufacturing solution Interface)tutorials. HF-5000: Using Result Mapper in HyperCrash In this tutorial, you will learn the procedure for mapping forming results onto structural models using the HyperWorks Results Mapper. HF-6000: Die Structure Optimization
  15. I also tested Radioss + HyperStudy coupling by referring HS-4220 & it works as expected. Please refer below video which covers up to nominal run. HS4220.mp4 boxbeam1.tpl boxbeam1_0000.rad boxbeam1_0001.rad
  16. This seems to happen if function response (DRESP2) is not referenced in either the objective or constraints. If used, error message does not appear.
  17. I suspect this issue is related to naming. Please refer to similar query . If the above solution doesn't works, then please share the required files here.
  18. I was hoping that you could clarify some points.Can you confirm whether I should be able to execute a Hyperstudy analysis with RADIOSS? If it is the case I would be grateful for some tips as I cannot progress beyond a licence error. RADIOSS runs fine from the Hypermesh session.I get RADIOSS to start but it bangs out with a licence error... from task_exe_stdout.txt .. STARTER RUNNING ON 4 THREADS .. CONTROL VARIABLES *** Radflex Error : 200 - Back to checkout*** from JOB.out LICENSE CHECK ERROR -------------------- ERROR : License check failed ! "Radioss" feature not found on license server! Check your License server settings Many thanks Mike
  19. Define PSDM output request for STRESS
  20. Please the check the SimLab load mapping capabilities. Altair for SimLab Learning Center
  21. You could use Model Resource features in HyperSudy for the above requirement.Please refer below online tutorial for same. HS-1080: Set Up an Operator Model
  22. Contact output for linear analysis(Available from OptiStruct version 2019.1) Contact output, such as Contact Force, Traction and Deformation, are available for linear analysis via the CNTF I/O Entry.
  23. Sorry for the late reply.Could you please ensure the starter input deck name should be same during the define model step in HyperStudy.Can you please make sure there is no space or special characters.Above shared files I successfully able to run at my end with HyperStudy Student edition 2019.0. I believe the issue is because of naming.
  24. Time varying convection (Available for Version 2018.0 or higher) Convection coefficients can be specified as time-dependent when a control node (CNTRLND) is specified on CONV card. The control node must be constrained by an SPCD, which is made time dependent by TLOAD1/TLOAD2. The convection coefficient is multiplied by the value from SPCD of control node.
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