Search found 11 matches

by Ankit Verma
Tue May 19, 2020 7:07 am
Forum: OpenSim
Topic: CMC positional inaccuracy
Replies: 1
Views: 307

CMC positional inaccuracy

Hi all, Problem 1 : I have a hand model with measured small inertial properties (1E-7). I have a problem running CMC during finger flexion. it gives very large position errors. Multiplying the properties by 1000 solves the problem. Why so much positional inaccuracy is coming into picture while solvi...
by Ankit Verma
Sat Mar 28, 2020 2:35 am
Forum: OpenSim
Topic: inertia properties problem with CMC
Replies: 6
Views: 1042

Re: inertia properties problem with CMC

Hi Mojtaba I am also performing CMC of hand model. I have used the mass and inertial properties from research paper benjamin et.al (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5597339/) but since mass and inertial properties are smaller (10^-7 range) so I am also getting too much positional inaccur...
by Ankit Verma
Tue Mar 24, 2020 1:08 pm
Forum: OpenSim
Topic: Wrist model_CMC simulation
Replies: 0
Views: 283

Wrist model_CMC simulation

Hi Everyone I have downloaded the Delp model of Wrist and have been trying to calculate the muscle forces using CMC in Wrist Model. Capture.JPG I have given mass and inertial properties from benjamin's research paper (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5597339/). In model I am giving motio...
by Ankit Verma
Sun Mar 22, 2020 4:19 am
Forum: OpenSim
Topic: Wrist model_Static Optimisation
Replies: 0
Views: 204

Wrist model_Static Optimisation

Hi Everyone I have downloaded the Delp model of Wrist and have been trying to calculate the muscle forces using Static Optimisation in Wrist Model. I have given mass and intertial properties from benjamin's research paper (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5597339/). In model I am giving ...
by Ankit Verma
Thu Mar 05, 2020 6:23 am
Forum: OpenSim
Topic: Dynamic capable wrist model with all masses and intertia
Replies: 0
Views: 224

Dynamic capable wrist model with all masses and intertia

I wanted to perform the Static Optimisation and CMC for the cylindrical grabbing case in wrist model made (curling fingers to hold an object). The model given in repository (wrist model by Delp, Gonzalez) is not dynamically capable as it misses mass and inertia of finger bones. Is there any dynamic ...
by Ankit Verma
Thu Feb 13, 2020 11:55 pm
Forum: OpenSim
Topic: CMC is not running in GUI
Replies: 3
Views: 546

Re: CMC is not running in GUI

Hi, I have tried CMC with giving residual actuator file also, but it is getting struck at the same time (optimisation is not getting started). Note: No error message is coming, just getting struck same as earlier. Is there any dynamically capable model available of hand including all fingers in whic...
by Ankit Verma
Mon Jan 27, 2020 12:15 am
Forum: OpenSim
Topic: Table Reporter for Inverse Dynamics in MATLAB
Replies: 2
Views: 406

Table Reporter for Inverse Dynamics in MATLAB

Hi Everyone I was performing Inverse Dynamics simulation to calculate the joint torque required for a trajectory in MATLAB. I have run the Inverse Dynamics Simulation using MATLAB but i not able to export the data to tablereporter. Can someone tell me how to use reporter. code I am using for running...
by Ankit Verma
Sun Jan 26, 2020 10:28 pm
Forum: OpenSim
Topic: CMC is not running in GUI
Replies: 3
Views: 546

CMC is not running in GUI

Hello All I was trying to run the CMC tool on hand model to calculate the metabolic cost and muscle forces. I dont want to apply any external forces and I am not providing any residual actuator file (is it necessary ??) but optimisation process is not getting started at even t=0, I have attached the...
by Ankit Verma
Thu Oct 10, 2019 7:18 am
Forum: OpenSim
Topic: Soft Bending actuator
Replies: 0
Views: 162

Soft Bending actuator

Hi all
How can I model the soft bending actuator in OPENSIM model ?
by Ankit Verma
Thu Sep 19, 2019 9:12 pm
Forum: OpenSim
Topic: Mass of actuators
Replies: 1
Views: 153

Mass of actuators

Hey,
I was trying to mount a actuator on one finger and simulate, but i am not getting how to include the mass and inertial properties of actuators in the model ?