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Fatma

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Everything posted by Fatma

  1. I would first check if your input files are written correctly. You can do this by comparing them with each other and making sure that the DV values are changing. If they are written correctly, next is to check if the simulation is running correctly. Are you pointing directly to the executable or are you running a script? If you are running a script, there may be places that you had to use HyperStudy environment variables. Hope these help as a starting point
  2. In HyperStudy terminology, input and validation matrices correspond to training and testing data. A validation matrix is not obligatory but it is suggested as the fit diagnostics on input matrix is not as reliable. In cases where methods such as HyperKriging and RBF are used; it is very much needed. More information can be found in HyperStudy > How to Use HyperStudy > Study Contents > Approaches > Approach Steps: Select Matrices (Fit) As for your second question; I am afraid I am not clear about it. I read specific instructions in the tutorial for the fit method Can you give more details?
  3. In online help, under "Invoking HyperStudy" section batch commands are listed for different OS. As for picking what to run in batch; in the UI; if you click on the study name; you will see that one of the tabs is called "Batch Tasks". In this tab; you can pick which approaches you'd like to run batch. Hope this helps.
  4. Which HyperWorks version are you using? Thanks.
  5. I put an e before the sign before parameterizing the value. Make sure to adjust the columns by deleting a space after the value if you choose to do this workaround.
  6. What version of HyperStudy are you using? If it is older than HyperStudy ver 14.0; you need to use the resvector function. See HS-2000: DOE Method Comparison: Arm Model Study as an example.
  7. Please see HyperStudy tutorial HS-1040.
  8. Hello Do you still run into this issue? Can you try a newer version of HyperStudy than 12? Thanks.
  9. Hi Tanut Details of GRSM can be found in HyperStudy help. GRSM would work well with noisy responses as it is global search algorithm and good in capturing the global trends of the response functions (as opposed to being trapped in local minimums/maximums). Hope this helps. Thanks Fatma
  10. Hi Stefan If you can create responses that gets the minimum element index and maximum element index, you can use these responses in your resvector definition such as max(resvector(getenv("HST_APPROACH_RUN_PATH") + "/m_1/beam.h3d",1,0,r_6,0,0,0,1)) In this example, minimum element index is always 0 but maximum element index is another response (r_6). This response, r_6, in this case, reads the number of elements from the OptiStruct output file. Hope this helps Fatma
  11. Which files are you reading your responses from? If they are .mer files, please use the "ASCII Extracts" tab in the Expression Builder.
  12. You can use the "parametrized input file" model in HyperStudy instead of the "HyperMesh" model.
  13. You can add any responses to HyperStudy as long as the solver (AcuSolve in this case) writes out what is needed to calculate that response.
  14. Please see the attached files for a script example. split_macro.zip
  15. You need a script to a response with varying indices. We have a sample script for that. Let us know if you would like to see it.
  16. I replied to your other post. I assume they are the same issue. Let me know if otherwise.
  17. I need more information on your study to be able to answer your question accurately. Based on this limited information, I assume you have three models you want to run. In HyperStudy, you can define three separate models for the three Abaqus simulation. HyperStudy then will created m_1, m_2, m_3 folders in the run directories. Don't forget to use the "interactive" mode in Abaqus.
  18. Setting up number of cores or memory is a solver functionality and details will depend on the solver you are using. In HyperStudy, you can enter the solver options for memory, core settings in the Solver input arguments cell of the Define models step. You can also enter them in your batch file if you are using any. Some examples are given in the online help (How to Use HyperStudy-Study Contents-Setup-Define Models).
  19. It is possible to use the same model and run a force sweep study in HyperStudy. Here are the steps: 1. Parameterize your input deck such that the force magnitude is a parameter that you will use as a design variable. 2. In HyperStudy 13, in the study setup specifications step, pick sweep study and enter the number of runs you would like to simulate. If you are not using HyperStudy 13, you can use the process outlined in tutorial HS-2200 in DOE tutorials instead of the step 2 above. Fatma
  20. Hi Ahmed Please follow Step 3 of the tutorial HS-2000, first one in the DOE tutorials. This will show you how to use the max and resvector functions to find the maximum of a vector data (in this case displacement vector). Fatma
  21. Thanks for pointing this out. We will work to add this information to the online help. In the meantime, CS21 stands for Wu's compactly supported (2,1). I cannot see to be able to paste the function here. You can find it in Handbook of Digital Homan Modeling, Chapter 21 or in math.iit.edu.
  22. .osi file is created by AcuSolve. Can you make sure that your AcuSolve execution is completed without any errors? Which version of HyperStudy are you using?
  23. I do not understand your question in the context of HyperStudy. Can you please explain?
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