Search found 14 matches

by Charles Khazoom
Wed Apr 08, 2020 1:39 pm
Forum: OpenSim
Topic: Apply new external force over measured kinematics and GRFs
Replies: 5
Views: 1489

Apply new external force over measured kinematics and GRFs

Hi, I am trying to make CMC simulations for normal walking, with an external force applied on the pelvis, which would eventually vary within the gait cycle. To simplify for now, I apply a constant vertical force 300 N on the pelvis COM. Ultimately, I wish to compute the metabolic cost using differen...
by Charles Khazoom
Mon Mar 30, 2020 5:00 pm
Forum: OpenSim
Topic: Static Optimization vs CMC
Replies: 1
Views: 286

Static Optimization vs CMC

Hi, I have been wondering the difference between Static optimization (SO) and CMC, as the faster SO seems to yield similar results to CMC in many cases even if it is neglecting muscle activation dynamics. Why would someone want to consider muscle activation dynamics (thus use CMC) for walking, where...
by Charles Khazoom
Thu Mar 26, 2020 5:49 pm
Forum: OpenSim
Topic: Cannot open .osim models
Replies: 1
Views: 283

Cannot open .osim models

Hi, I am using OpenSim4.1. I am having trouble opensim .osim model files downloaded. The project was originally from OpenSim 3.3. The error message says : Cannot open file PATH_TO_FILE. It may not exist or you do not have the permission to read it. Thrown at object.cpp: 105 in Object(). Is there a w...
by Charles Khazoom
Thu Mar 26, 2020 7:51 am
Forum: OpenSim
Topic: Differences between Static Optimization and CMC?
Replies: 3
Views: 650

Re: Differences between Static Optimization and CMC?

Hi, I have also been wondering the difference between SO and CMC, as the faster SO seems to yield similar results to CMC in many cases even if it is neglecting muscle activation dynamics. Why would someone want to consider muscle activation dynamics (thus use CMC) for walking, where the activation d...