According to your title "How to show rigid body in mode shape?"
I've recommended a video course that I think could be useful for you. Please take a look and let me know if it isn't helpful or if your question is different.
/courses/index.php/courses/modal-analysis-in-ansys-mechanical/lessons/how-to-evaluate-rigid-body-modes-in-a-modal-analysis-lesson-4/
Best Regards,
Sampat
You are navigating away from the AIS Discovery experience