Search found 5 matches
- Thu May 02, 2019 12:14 pm
- Forum: OpenSim
- Topic: Opensim Muscles Moment Extraction & Expression
- Replies: 3
- Views: 1065
Re: Opensim Muscles Moment Extraction & Expression
Hi Ali, Thanks for your message. It seems you are aiming to compare the muscle-generated joint moments + your added torque-actuator-generated moments to the inverse dynamics moments for the same motion. I did something similar for a previous project. There are some scripts here that might be a good ...
- Mon Dec 03, 2018 2:53 pm
- Forum: OpenSim
- Topic: "best practice" for tuning Opensim models
- Replies: 8
- Views: 1802
Re: "best practice" for tuning Opensim models
I can chip in a little bit here. Our lab published a lower limb OpenSim model a couple years ago. For that model, tendon slack lengths were set using the same ideas as described in the Manal and Buchanan paper you referenced. (We posed our OpenSim model in the same position as the cadavers from the ...
- Tue Oct 23, 2018 10:59 am
- Forum: 2018 Fall OpenSim Virtual Workshop
- Topic: Constraints, CMC
- Replies: 2
- Views: 447
Re: Constraints, CMC
Hi Arash, Control constraints are not necessary to run CMC. Sometimes, it might be helpful to include control constraints to specify when certain muscles are on/off (e.g., constrain the plantarflexors to be off in mid-swing in walking) to help shape the feasible solution space, and this can be done ...
- Wed Oct 25, 2017 2:42 pm
- Forum: 2017 Fall OpenSim Virtual Workshop
- Topic: Forward Dynamics only works for short intervals
- Replies: 5
- Views: 1061
Re: Forward Dynamics only works for short intervals
Hi Miriam, What quantities are you aiming to compute using your forward dynamics solutions? This may determine what tool is best suited for your application. The RRA tool essentially runs a closed-loop tracking forward simulation that roughly tracks desired kinematics. Running an open-loop forward s...
- Wed Jul 10, 2013 9:55 am
- Forum: OpenSim
- Topic: Building 3.0 Source code on Mac OSX 10.7
- Replies: 5
- Views: 1530
Re: Building 3.0 Source code on Mac OSX 10.7
Hi Marco, I've gotten this error before too. Before you compile Simbody and OpenSim, you need to explicitly specify in CMake whether you want to build for 32-bit or 64-bit. Otherwise, one of them defaults to 32-bit and the other to 64-bit which is why the libraries are not compatible. (I forget whic...