*** ERROR # 2922 *** Residual structure should be empty while using ASSIGN,MBDINP. I'm getting this error. Kindly let me know what can be the exact problem with my model?

Gaurav_20308

NickZ

It sounds like you're working with flex bodies. Here are some basics for flex bodies:

https://2019.help.altair.com/2019/os/topics/solvers/os/flexible_body_generation_intro_r.htm

If this doesn't help, feel free to reach out to support for Motionsolve/Optistruct. hwsupport@altair.com