random response analysis

Altair Forum User
Altair Forum User
Altair Employee
edited October 2020 in Community Q&A

during random response analysis i need to give acceleration as input then what are load collectors should i use apart from  tabrnd1 and randps?

should i represent the point of excitation using darea card giving unit load there and again giving acceleration at that point?

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited March 2017

    Hi Jahnavi,

     

    This picture may help you to create  RRA :)/emoticons/default_smile.png' srcset='/emoticons/smile@2x.png 2x' title=':)' width='20'> 

    <?xml version="1.0" encoding="UTF-8"?>RRA.PNG

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited March 2017

    You can also refer to OptiStruct help for more information about the same.

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited March 2017

    will we get displacement or acceleration(output) only at the node where we have given load??

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited March 2017

    @jahnavi

     

    You can request displacement and acceleration for other nodes also. Go to Control cards>> Global output request>> Displacement/Acceleration>> Select node/node set

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