Search found 76 matches

by Anne Schmitz
Wed Dec 08, 2010 12:47 pm
Forum: OpenSim
Topic: EMG data in CMC and forward dynamics
Replies: 2
Views: 552

RE: EMG data in CMC and forward dynamics

Go to my simtk project, UW Cosimulation, and look under documents. There's some files on how to run forward dynamics models with EMG.
by Anne Schmitz
Wed Nov 03, 2010 11:16 am
Forum: OpenSim
Topic: Damper
Replies: 5
Views: 582

RE: Damper

There is no way that I kjnow of now. I submitted it as a feature request.
by Anne Schmitz
Mon Nov 01, 2010 11:09 am
Forum: OpenSim
Topic: stiffness in a joint
Replies: 6
Views: 1887

RE: stiffness in a joint

Use a Generalized Spring Force. This can be about any generalized coordinate, including rotational ones.
by Anne Schmitz
Mon Nov 01, 2010 11:06 am
Forum: OpenSim
Topic: Damper
Replies: 5
Views: 582

RE: Damper

<t>Here is the xml code for a ligament. <br/> <br/> <Ligament name="pmPCL_r"><br/> <isDisabled> false </isDisabled><br/> <GeometryPath name=""><br/> <PathPointSet name=""><br/> <objects><br/> <PathPoint name="pmPCL_r-P1"><br/> <location> -0.00900000 -0.04700000 -0.00200000 </location><br/> <VisibleO...
by Anne Schmitz
Mon Oct 11, 2010 12:59 am
Forum: OpenSim
Topic: Damper
Replies: 5
Views: 582

RE: Damper

I've added a SpringGeneralizedForce to int/ext knee rotation with zero stiffness but some viscosity. Is this basically a damper then?

Thanks,

Anne
by Anne Schmitz
Thu Oct 07, 2010 11:00 am
Forum: OpenSim
Topic: osim file documentation
Replies: 13
Views: 1511

RE: osim file documentation

I noticed some difficulty as well when using xml_write in the xml_io_tools. The toolbox gets mixed up if it finds ::. Instead, I used xml_write and used the Xerces xml engine (you can specify this as a preference for your input).
by Anne Schmitz
Tue Oct 05, 2010 2:14 pm
Forum: OpenSim
Topic: Evaluate Contact Forces and Indentations
Replies: 2
Views: 332

RE: Evaluate Contact Forces and Indentations

The ForceAnalysis option will give you this information.
by Anne Schmitz
Mon Oct 04, 2010 3:32 pm
Forum: OpenSim
Topic: prescribed dof in forward dynamics
Replies: 7
Views: 1088

prescribed dof in forward dynamics

I have a knee model with contact. I would like to run a forward dynamic simulation by prescribed knee flexion and have the simulation predict the other degrees of freedom. How do I prescribe the motion of 1 dof in a forward dynamics simulation?

Thanks,

Anne Schmitz
by Anne Schmitz
Wed Sep 15, 2010 1:37 pm
Forum: OpenSim
Topic: Damper
Replies: 5
Views: 582

Damper

How can I add a damper to my model?
by Anne Schmitz
Wed Aug 11, 2010 12:46 pm
Forum: OpenSim
Topic: prescribed force
Replies: 2
Views: 264

RE: prescribed force

<t>I tried that syntax and it didn't work. Here is a snippet that runs on the newest version of OpenSim. <br/> <br/> <PrescribedForce name= "prescribedF"><br/> <body>tibia_r</body><br/> <pointIsGlobal>true</pointIsGlobal><br/> <forceIsGlobal>false</forceIsGlobal><br/> <FunctionSet name="forceFunctio...