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    • Rahul Ponginan

      Please click here for a short but important announcement   03/26/17

      Dear Users Our Commercial and Academic users around the world can use these same forums here as before i.e. the Altair Support Forum , Commercial users from India with solver queries can go to the Solver Forum for India Commercial Users , Academic Users from India and AOC India Participants are requested to go to the Forum for India Academic Users and AOC India Participants , We will be tending to all queries in all the forums promptly as before, thank you for your understanding. 

Ahmad Burhani

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  1. How to perform craig-bampton method

    @Prakash Pagadala This are the files. I have checked the .out file. There is no mass matrix written. Only stiffness.Can you please check the .fem file if there is anything wrong I made. Superelement.fem Superelement.out Superelement_AX.pch One more, I supposed to get this 2 output from the optistruct but I only get the DMIG (.pch) only. Not the H3D file.: 1.The successful run will have DMIG matrix (Super Element). 2.The successful run will also have H3D file (binary Super Element)
  2. How to perform craig-bampton method

    @Prakash Pagadalaplease check your dropbox. I have sucessfully generate the .pch file. But there is no mass matrix (MAAX) in it. Only stiffness matrix (KAAX). Plus at the .out file, there is warning and problem on the CMSMETH. Can you please check the .fem file if there is anything wrong I made.
  3. How to perform craig-bampton method

    i've sent the file to your dropbox
  4. How to perform craig-bampton method

    Then I only used EIGRL load collector for normal modes load step, but I dont know what type of load step for CMSMETH load collector This is the error appear: Control cards "METHOD=n" are not allowed when CMSMETH card is present.
  5. How to perform craig-bampton method

    I keep on getting this error . I used EIGRL and CMSMETH for load collector and Normal modes for load step Im not sure what type of load step use in the centilever example. Is it normal modes? for both EIGRL and CMSMETH load collector?
  6. How to perform craig-bampton method

    For the grid data section in superelement, did I need to include the sub B grid also?
  7. How to perform craig-bampton method

    I have been working on Craig-Bampton method for normal mode analysis in which I aim to get a faster computational time result for 16 modes. Until now I unable to do so. I tried to use all the information obtained from the internet, but I failed miserably since I have no idea how to do it. I'm working with superelement . Just a simple structure. One superelement and one residual. With this, I attached my explanation of the structure I'm working with.
  8. Hi, Mr Prakash Pagadala.

     

    It seems to be you are very expert on the hypermesh software. I have a problem. I have been working on Craig-Bampton method for normal mode analysis in which I aim to get a faster computational time result for 16 modes. Until now I unable to do so. I tried to use all the information obtained from the internet, but I failed miserably. Nobody can teach me. I'm a master student and I dying to get the result. Could you please help me?

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