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gopal_rathore

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gopal_rathore last won the day on August 28 2017

gopal_rathore had the most liked content!

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About gopal_rathore

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    Super User

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    rathore.gopal132@gmail.com

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  • Gender
    Male
  • Country
    India
  • Interests
    Structural and fluid simulations
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  1. gopal_rathore

    Force vs Displacement (Loading curve)

    Hi @Prakash Pagadala I have given force as load . Can you please confirm Thank you
  2. gopal_rathore

    Force vs Displacement (Loading curve)

    Hi @Prakash Pagadala@Rahul R Can you help
  3. gopal_rathore

    Force vs Displacement (Loading curve)

    I made a similar file to check for scale factor functioning. It is not working in the attached file for me and not able to find where I am doing the mistake Thank you spring.hm
  4. gopal_rathore

    Element quality check between nastran and optistruct

    Sorry, this content is wrongly posted.
  5. gopal_rathore

    Identification of global and local mode in modal analyis

    Hi, There is one tool in 17 version in Hyperview> Preferences>NVH utilities to understand the identification of global and local modes. It talks about setting a criteria based on percentage range for identification. I wanted to know how it is setting up this criteria I have attached image for reference
  6. gopal_rathore

    Element quality check between nastran and optistruct

    Hi, There is one tool in 17 version in Hyperview> Preferences>NVH utilities to understand the identification of global and local modes. It talks about setting a criteria based on percentage range for identification. I wanted to know how it is setting up this criteria I have attached image for reference
  7. gopal_rathore

    Element quality check between nastran and optistruct

    Hi, Anything on above points
  8. gopal_rathore

    Identification of global and local mode in modal analyis

    Hi, Anything on above points
  9. gopal_rathore

    Identification of global and local mode in modal analyis

    Hi, Yes in comparison to rigid body modes the modes after 6 would be local only as in rigid mode complete system will participate as the system is behaving as a rigid body I am neglecting those first 6 modes and now want to analyse the first global mode after 6 i.e from 7 Is there any other parameter apart from the EFFMASS to understand this.
  10. gopal_rathore

    Element quality check between nastran and optistruct

    Hi, This is for warpage
  11. gopal_rathore

    Identification of global and local mode in modal analyis

    Hi, Yes, how shall I interpret it by going on free- free run analysis.The requirement is to get the results interpreted based on free- free run Also on seeing the .out file it shows: MODAL EFFECTIVE MASS FOR SUBCASE 1 RIGID BODY MODES BASED ON REFERENCE POINT AT ORIGIN OF BASIC COORDINATE SYSTEM This reference point is somewhere in the structure . How does this influence the parameters coming in .out files like eff. mass, modal participation factor etc. Thank you
  12. gopal_rathore

    Identification of global and local mode in modal analyis

    Hi, I have doe modal analysis allowing first 6 rigid modes also i.e with v1=0 . These first 6 modes being rigid modes have almost zero natural frequency but the mas contribution is very high when compared to the modes starting from 7th. This is expected as the complete system is moving as a single rigid body in space. Now., I have extracted 20 modes and the summation of modal effective mass is coming out to be the total mass of the system for x, y and z translation with major contribution from the first 6 rigid modes. I am not able to interpret using this which mode is local and which mode is global as in this case the first 6 rigid modes are very dominant with respect to mass and those frequencies are not of interest. I have shared excel file for the parameters obtained through secure box.
  13. gopal_rathore

    Element quality check between nastran and optistruct

    Hi, Any update on this
  14. gopal_rathore

    Element quality check between nastran and optistruct

    Yes, This is the same thing it shows.
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