Search found 8 matches

by Aya Alwan
Tue Jul 16, 2024 11:03 am
Forum: OpenSim
Topic: RRA model sinks into ground
Replies: 4
Views: 1334

Re: RRA model sinks into ground

Hi Mohammadreza, I must have overlooked that. It helped! Thank you!! In terms of metabolic cost. I get about 500 Joules as a result from the "integrate" operation for the Umberger metabolic probe (CMC results). If I divide the value by duration (0.7 seconds) and weight (63 kg), I get about 11 W/kg. ...
by Aya Alwan
Mon Jul 15, 2024 6:51 am
Forum: OpenSim
Topic: RRA model sinks into ground
Replies: 4
Views: 1334

Re: RRA model sinks into ground

I did resolve this issue after posting the thread. The original problem is still there. Thank you though!
by Aya Alwan
Sat Jul 13, 2024 1:50 pm
Forum: OpenSim
Topic: RRA model sinks into ground
Replies: 4
Views: 1334

RRA model sinks into ground

Hello, I'm using Opensim 4.5 to run RRA and CMC on a walking trial. The model sinks into the ground as if GRF data don't exist. I'm attaching the GRF, IK, and model files. I use the default actuators, constraints, and tasks files from gait2354 model. Could you help resolve the issue? I tried the rec...
by Aya Alwan
Tue Jun 11, 2024 1:28 pm
Forum: OpenSim
Topic: RRA/CMC tool fails
Replies: 1
Views: 652

RRA/CMC tool fails

Hello, I have been struggling to get the RRA/CMC steps to work (OpenSim 4.5). I'm attaching all input files for reference. I have not changed the default xml files (tasks, actuators, and constraints) that are available within the installed OpenSim gait2354 folder. The CMC tool works without the exte...
by Aya Alwan
Sun Dec 05, 2021 1:27 pm
Forum: OpenSim
Topic: Defining a new marker set
Replies: 6
Views: 819

Re: Defining a new marker set

Now I have another issue- my model bends 90 degrees forward (attached). I tried to flip the coordinate system but still getting the same results in IK tool. What could be the issue?
by Aya Alwan
Fri Dec 03, 2021 7:52 pm
Forum: OpenSim
Topic: Defining a new marker set
Replies: 6
Views: 819

Re: Defining a new marker set

Thanks John! Trying this now :)
by Aya Alwan
Thu Dec 02, 2021 8:13 am
Forum: OpenSim
Topic: Defining a new marker set
Replies: 6
Views: 819

Re: Defining a new marker set

Hi Daniel, I did go through this tutorial before I started experimenting with my own dataset. I'm assuming that renaming the markers would solve my problem. I'm just not sure how to match my marker locations and naming to the gait model provided. I'm hoping it is a simple fix :) Thanks for the help!...
by Aya Alwan
Wed Dec 01, 2021 1:11 pm
Forum: OpenSim
Topic: Defining a new marker set
Replies: 6
Views: 819

Defining a new marker set

Hello, I'm working on a class project, and this is my first time using OpenSim. I would like some guidance on how to use OpenSim to run inverse dynamics on Vicon data. I'm planning to use gait model 2354, but with the locations of our marker set and eventually obtain plots of joint moments for diffe...