Search found 4 matches

by XIAODONG HE
Tue Jan 07, 2020 5:55 am
Forum: OpenSim
Topic: How to create ideal muscles which only generate a*Fom force
Replies: 2
Views: 137

How to create ideal muscles which only generate a*Fom force

Hi there I'm trying to create 'ideal' muscles which can ignore the force-length-velocity relationship, passive fiber force, tendon compliance, etc. and only generate active fiber force. The existing muscles such as Millard2012EquilibriumMuscle and Thelen2003Muscle seem to not be able to act as such ...
by XIAODONG HE
Tue Nov 19, 2019 10:19 pm
Forum: OpenSim
Topic: Problems of adding ExternalForce to a model
Replies: 0
Views: 146

Problems of adding ExternalForce to a model

I added an external force containing a time-varying ground reaction force file to a model. But when I opened this model in OpenSim 3.3 GUI or loaded it in MATLAB, the software crashed. This my <ExternalForce> under <ForceSet>: <ExternalForce> <!--Name of the body the force is applied to.--> <applied...
by XIAODONG HE
Sun Jul 08, 2018 6:22 pm
Forum: OpenSim
Topic: Elastic foundation force
Replies: 0
Views: 190

Elastic foundation force

Hi there
I'm using the elastic foundation force classes to simulate the knee joint contact. However, the force reporter only outputted the reaction forces expressed in the ground frame. I'm just wondering how I could get the forces expressed in the body or local frame.

Thanks