hasnun
Mechanical
- Dec 10, 2014
- 5
Hi guys,
I am modelling head impact. I would like to request the rotational acceleration of the center of gravity (CG) of the head. I've created a reference point for the CG, and requested the translational and rotational acceleration for the RP. For the translational acceleration, the value I got for every axis was zero. And for the rotational acceleration, there were no output generated at all. There was a warning "output request ar1 is not valid since it requests output at dof that is not active".
What should I do? Do I have to define a mass for the RP? How do I get the rotational acceleration component written in the output? Thanks.
I am modelling head impact. I would like to request the rotational acceleration of the center of gravity (CG) of the head. I've created a reference point for the CG, and requested the translational and rotational acceleration for the RP. For the translational acceleration, the value I got for every axis was zero. And for the rotational acceleration, there were no output generated at all. There was a warning "output request ar1 is not valid since it requests output at dof that is not active".
What should I do? Do I have to define a mass for the RP? How do I get the rotational acceleration component written in the output? Thanks.
