Hunt-Cross Ley Force potential energy

Provide easy-to-use, extensible software for modeling, simulating, controlling, and analyzing the neuromusculoskeletal system.
POST REPLY
User avatar
Araceli Luque Martín-Sacristán
Posts: 10
Joined: Tue Apr 07, 2020 12:02 pm

Hunt-Cross Ley Force potential energy

Post by Araceli Luque Martín-Sacristán » Tue Nov 24, 2020 8:01 am

Hello,

I am calculating the potential energy of a Hunt-Cross Ley force given by a contact of a sphere-halfspace. Checking the simbody here: https://github.com/simbody/simbody/blob ... #L396-L475 I have doubts about the material properties E1 and E2. E1 would be the plane-strain modulus of the sphere material (in my case carbon-fiber), and E2 of the halfspace material, right?

Is there a way to introduce this parameters in the OpenSim model, so Opensim can calculate it by itselft?

Thank you for your help,
Bests.
Top
User avatar
Thomas Uchida
Posts: 1793
Joined: Wed May 16, 2012 11:40 am

Re: Hunt-Cross Ley Force potential energy

Post by Thomas Uchida » Tue Nov 24, 2020 3:37 pm

Please see Section 11.2 in the Simbody Theory Manual (click on "SimbodyTheoryManual.pdf" here: https://github.com/simbody/simbody/tree ... imbody/doc). The "Building a Dynamic Walker in Matlab" example (https://simtk-confluence.stanford.edu/d ... +in+Matlab) uses them so you could look there for an example.
Top
POST REPLY