Specifying External Loads in Non-global Frame
Posted: Fri Dec 24, 2010 1:46 pm
Hi,
I need to apply external torques on a double pendulum model with no muscles during the forward dynamics analysis. The point of torque application for the upper link is fixed. However, the point of torque application for the lower link changes during the simulation and is not known beforehand. Is there a way to specify the point of torque application for the lower link in the coordinate frame of the upper/lower link? The user's guide mentions that the external force for forward dynamics must be specified in global coordinate frame. I was wandering is there any way using GUI/API to express the forces/torques in a non-global coordinate frame to run forward dynamics analysis?
Thanks.
Regards,
Priyanshu
I need to apply external torques on a double pendulum model with no muscles during the forward dynamics analysis. The point of torque application for the upper link is fixed. However, the point of torque application for the lower link changes during the simulation and is not known beforehand. Is there a way to specify the point of torque application for the lower link in the coordinate frame of the upper/lower link? The user's guide mentions that the external force for forward dynamics must be specified in global coordinate frame. I was wandering is there any way using GUI/API to express the forces/torques in a non-global coordinate frame to run forward dynamics analysis?
Thanks.
Regards,
Priyanshu