Search found 26 matches

by J.J. Mordang
Tue Jun 22, 2010 8:25 am
Forum: OpenSim
Topic: Model takes off during RRA
Replies: 21
Views: 2830

RE: Model takes off during RRA

<t>Hi Ayman,<br/> <br/> <br/> I managed to do the RRA simulation by locking the pelvis and converting my lab data into treadmill data. However, when I want to compute muscle control I encounter a lot of problems.<br/> <br/> 1. When I check the "append to muscle's force data" instead of replace, the ...
by J.J. Mordang
Tue Jun 22, 2010 8:23 am
Forum: Lower Limb Model 2010
Topic: CMC Settings
Replies: 1
Views: 574

CMC Settings

<t>Hi,<br/> <br/> <br/> I was wondering how your CMC is set up. I made treadmill data and the scaling, inverse kinematics and residual reduction look just fine. However, when I want to compute muscle control I encounter a lot of problems.<br/> <br/> 1. When I check the "append to muscle's force data...
by J.J. Mordang
Fri Jun 18, 2010 3:16 am
Forum: OpenSim
Topic: Model takes off during RRA
Replies: 21
Views: 2830

RE: Model takes off during RRA

<t>Hi Ayman,<br/> <br/> <br/> The main objective of my research project is to extract EMG data from the muscles in the lower limb and compare them with real data acquired in the lab. The main interests are in the foot bones and the tibialis posterior and anterior. However, there is only one force pl...
by J.J. Mordang
Thu Jun 17, 2010 1:22 am
Forum: OpenSim
Topic: Model takes off during RRA
Replies: 21
Views: 2830

RE: Model takes off during RRA

<t>Hi,<br/> <br/> <br/> Currently I'm busy with a model of the right leg. I've added 3 more joints to the foot to see what happens during normal gait. I wanted to do a RRA simulation and I read the rraCmcPage and the suggestions in an other thread but the simulation still won't work properly. When t...
by J.J. Mordang
Wed Jun 16, 2010 7:53 am
Forum: OpenSim
Topic: RRA
Replies: 5
Views: 822

RE: RRA

<t>Hi,<br/> <br/> <br/> Currently I'm busy with a model of the right leg. I've added 3 more joints to the foot to see what happens during normal gait. I wanted to do a RRA simulation and I read the rraCmcPage and the suggestions in the former post but the simulation still won't work properly. When t...
by J.J. Mordang
Mon Jun 14, 2010 1:15 am
Forum: OpenSim
Topic: RRA and CMC
Replies: 21
Views: 3579

RE: RRA and CMC

<t>Hi Becca,<br/> <br/> <br/> Thank you for your response.<br/> I looked into the .mot file and ran the RRA simulation over a period when forces are applied to the model. However, the RRA still won't start. When I look at the message panel i get the following error: <br/> <br/> Exception:<br/> Inver...
by J.J. Mordang
Fri Jun 11, 2010 3:32 am
Forum: OpenSim
Topic: RRA and CMC
Replies: 21
Views: 3579

RE: RRA and CMC

<t>Hi all,<br/> <br/> <br/> I wanted to do a RRA simulation on a self-made model. The .xml files that I use are partially based on the example Gait2392_Simbody but I changed the joints to the joints used in my own model. But when I run the simulation I get a pop-up screen with "tool execution failed...
by J.J. Mordang
Wed Jun 09, 2010 3:42 am
Forum: OpenSim
Topic: Scaled Model Orientation
Replies: 19
Views: 2450

RE: Scaled Model Orientation

<t>Hi Ayman,<br/> <br/> Thank you very much for your time and help!<br/> <br/> I got some progress in the scaling but it's still not as it should be. The virtual markers are shifted to much for my taste even though I set them to a weight value of 1000. For instance I put 2 markers on the 5th metatar...
by J.J. Mordang
Mon Jun 07, 2010 5:27 am
Forum: OpenSim
Topic: Scaled Model Orientation
Replies: 19
Views: 2450

RE: Scaled Model Orientation

<t>Hi,<br/> <br/> <br/> A joint was made between the ground and the pelvis. This solved the problem for a little bit. Still the virtual markers float al bit above the feet and are not located at their original position on the feet itself. Also during inverse kinematics the patella comes of the knee ...
by J.J. Mordang
Mon Jun 07, 2010 5:03 am
Forum: Lower Limb Model 2010
Topic: Problem inverse kinematics
Replies: 8
Views: 1693

RE: Problem inverse kinematics

<t>Hi,<br/> <br/> <br/> The DOF's are added successfully. However the scaling is still a bit rubbish. The virtual markers are still floating above the feet and their initial positions. And during the inverse kinematics the patella detaches from the knee which looks kind of strange. <br/> Does anyone...