Joint reaction force calculation
Posted: Tue Feb 25, 2014 8:03 am
Hi OpenSim team and community,
I was wondering how wrapping elements are taken into account using the joint reaction force (JRF) tool. Mechanically, if I have a lever arm, simulated with a wrapping element based in body x, forces on body x will be generated. I know, that if a wrapping element is used, an algorithm calculates an optimal path between muscle intersection points (entry and exit in wrapping surface). But if the JRF tool is used, how will the force vectors, generated by the wrapping surface, be computed? And how detailed over the whole wrapping surface?
I was wondering how wrapping elements are taken into account using the joint reaction force (JRF) tool. Mechanically, if I have a lever arm, simulated with a wrapping element based in body x, forces on body x will be generated. I know, that if a wrapping element is used, an algorithm calculates an optimal path between muscle intersection points (entry and exit in wrapping surface). But if the JRF tool is used, how will the force vectors, generated by the wrapping surface, be computed? And how detailed over the whole wrapping surface?