Search found 11 matches
- Tue Feb 16, 2021 1:24 am
- Forum: OpenSim
- Topic: inverse dynamics and passive muscle contribution
- Replies: 6
- Views: 1244
Re: inverse dynamics and passive muscle contribution
Thanks for the suggestion, I will try to do that!
- Mon Feb 15, 2021 5:56 am
- Forum: OpenSim
- Topic: inverse dynamics and passive muscle contribution
- Replies: 6
- Views: 1244
Re: inverse dynamics and passive muscle contribution
Hi Jacob, Thank you for your kind and very useful answer! It appears that there is indeed some residual activation of the muscles. I computed the muscles' active contribution while setting their activation to 0 and I realized it is not null as I was expecting it to be. If I consider this contributio...
- Fri Feb 12, 2021 8:14 am
- Forum: OpenSim
- Topic: inverse dynamics and passive muscle contribution
- Replies: 6
- Views: 1244
Re: inverse dynamics and passive muscle contribution
Hi Jacob, thanks for your reply! I double-checked the sign and I tried to add the passive contribution but the resultant kinematics is definetely not the desired one. Regarding the shoulder I have blocked the coordinate, so I guess it shouldn't interfere with my calculations, am I correct? Thank you...
- Thu Feb 11, 2021 7:36 am
- Forum: OpenSim
- Topic: inverse dynamics and passive muscle contribution
- Replies: 6
- Views: 1244
inverse dynamics and passive muscle contribution
Dear everyone, I am working on the Arm26 model to which I added a coordinate actuator at the elbow joint. My goal is to define a trajectory to be followed by the elbow joint and to compute the torque to be applied by the coordinate actuator to follow that trajectory, considering the muscles inactive...
- Wed Feb 10, 2021 8:27 am
- Forum: OpenSim
- Topic: Matlab simulation with input torque provided externally
- Replies: 0
- Views: 296
Matlab simulation with input torque provided externally
Dear all, I am working on arm26 model, to which I added a coordinate actuator at the elbow joint. I would like to perform forward simulations by controlling the actuator with torque values provided externally. In particular, my goal is to compute torque values with a Simulink model and to provide th...
- Mon Aug 24, 2020 3:24 am
- Forum: OpenSim
- Topic: Matlab visualizer
- Replies: 1
- Views: 282
Matlab visualizer
Hello everyone, I am currently working on a matlab script which uses the Visualizer. I am using the model "Arm26" to which I added a schematic representation of an exoskeleton. When I load the file through the Opensim GUI there is no problem with the visualization of the model. However, when I run t...
- Sun Jul 26, 2020 6:39 am
- Forum: OpenSim
- Topic: MATLAB crash when computing forward dynamics
- Replies: 10
- Views: 2414
Re: MATLAB crash when computing forward dynamics
Hi guys,
unfortuntely I wans't able to solve my problem. However, if I manage to find a solution I will post it here.
Thanks for all the help.
Elena
unfortuntely I wans't able to solve my problem. However, if I manage to find a solution I will post it here.
Thanks for all the help.
Elena
- Mon Jul 20, 2020 4:15 am
- Forum: OpenSim
- Topic: MATLAB crash when computing forward dynamics
- Replies: 10
- Views: 2414
Re: MATLAB crash when computing forward dynamics
Hi Pavlos,
thank you for your help!
Could you please explain to me how to not return any variable and still make the simulation continue at the proper state at each loop? This is not very clear to me.
Best regards,
Elena
thank you for your help!
Could you please explain to me how to not return any variable and still make the simulation continue at the proper state at each loop? This is not very clear to me.
Best regards,
Elena
- Mon Jul 20, 2020 1:24 am
- Forum: OpenSim
- Topic: MATLAB crash when computing forward dynamics
- Replies: 10
- Views: 2414
Re: MATLAB crash when computing forward dynamics
Hi Daan,
thank you so much for the answer!
I indeed do not have any issue when running the code in the main, however I am not sure how could I avoid using the manager in a function if I need to run a simulation in simulink. Do you have any suggestions for that?
Best regards,
Elena
thank you so much for the answer!
I indeed do not have any issue when running the code in the main, however I am not sure how could I avoid using the manager in a function if I need to run a simulation in simulink. Do you have any suggestions for that?
Best regards,
Elena
- Sat Jul 18, 2020 5:03 am
- Forum: OpenSim
- Topic: MATLAB crash when computing forward dynamics
- Replies: 10
- Views: 2414
Re: MATLAB crash when computing forward dynamics
Hi Ayman, thank you so much for the quick answer! This is the script from which I call the function "forward_dyn": import org.opensim.modeling.* path='C:\OpenSim 4.1\Geometry'; ModelVisualizer.addDirToGeometrySearchPaths(path); mymodel = Model('arm26_Copy.osim'); mymodel.setUseVisualizer(true); stat...