Output for Random Response

hiranwale_bharat
hiranwale_bharat Altair Community Member
edited October 2020 in Community Q&A

Hello Everyone,

 

I have few doubts in output of Random Response.

 

1.  In hyperview I am getting two subcases , i - 'Random' in which I get All PSD and RMS outputs. ii - 'Random Response' in which I get general outputs.

 

Can anyone tell me why there are two subcases and what is the difference between results obtained from them.

 

2. What is difference between RMS and RMS cummulated.

 

3. Are the o/p generated in 'random' subcase have units as (e.g. for acceleration) g^2/hz or only g.

 

Regards,

Bharat

 

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited January 2016

    Hi Bharat,

     

    Please refer to OptiStruct user guide: 

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  • hiranwale_bharat
    hiranwale_bharat Altair Community Member
    edited January 2016

    Hello Prakash,

     

    Thank you for the reply. But still I am in doubt about the results obtained in two subcases. What exactly is the interpretation of the acceleration(or any other output) obtained in random response subcase. I  have understood the PSD and RMS o/p from optistruct help.

     

    Additionally I have a query regarding o/p of random case.

     

    While in hyperview, for random response subcase,why are we having different results for acceleration (and other also) for linear animation mode and modal animation mode?

     

    Thanks and Regards,

    Bharat

  • Rahul Rajan_21763
    Rahul Rajan_21763 New Altair Community Member
    edited May 2016

    linear animation mode is for Linear & Nonlinear analysis output. For Modal analysis use Modal animation mode.

     

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