multi body inertia relief

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

Hello everyone,

 

I'm currently learning HW 12 in university and I tried to perform an inertia relief analysis to a normal metal chain (4 bodies with surface contacts). I performed the inertia relief tutorial RD-1030 and it work out.

But when I tried to perform the inertia relief analysis on the chain, I didn't know how to set up the suport1 constraints and I haven't managed it yet to get the analysis going. I mostly get the Error 941 (large displacement). Seems that 6 dof constraints are not enough...

 

Now I wanted to ask, if it is possible to perform inertia relief analysis with multiple bodies, which are connected via surface contacts to each other?

 

Thanks in advance for some help!

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Answers

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

    See attached screenshot from user guide of Optistruct.

     

    Regards

    Rahul R

    <?xml version="1.0" encoding="UTF-8"?>Inertia Relief analysis.JPG

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

    Thanks for your help!

     

    I have one more question:

    Is it possible to run a inertia relief analysis which includes not only suport1 constraints, but also SPC constraints? for example some other objects, that habe SPC contraints

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

    You can’t use SPCs in an inertia relief subcase.

     

    Regards

    Rahul R

     

     

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