Search found 8 matches

by Clarissa LeVasseur
Wed May 08, 2019 7:25 pm
Forum: OpenSim
Topic: Static Optimization Constraint Fail
Replies: 2
Views: 462

Static Optimization Constraint Fail

Hello! I am trying to run the static optimization tool using OpenSim 4.0. I am also using an extra file to append actuators to the model but am still getting this error below: SimTK Exception thrown at interiorpointoptimizer.cpp:264: Optimizer failed: Ipopt: Infeasible problem detected (status 2) OP...
by Clarissa LeVasseur
Tue May 07, 2019 8:13 am
Forum: OpenSim
Topic: Error loading mesh file
Replies: 5
Views: 657

Re: Error loading mesh file

Yes it loads correctly in the GUI. Would trying OpenSim 4.0 potentially fix the bug? I will look at the link you sent me as well.
by Clarissa LeVasseur
Tue May 07, 2019 5:13 am
Forum: OpenSim
Topic: Error loading mesh file
Replies: 5
Views: 657

Re: Error loading mesh file

What if I have the file in the main folder that the model is in and the geometry folder?

Also this is a contact geometry file so the code reads:

<filename>scapula.obj</filename>
by Clarissa LeVasseur
Mon May 06, 2019 8:01 pm
Forum: OpenSim
Topic: Error loading mesh file
Replies: 5
Views: 657

Error loading mesh file

Hello, I am trying to run the static optimization tool and when I load my motion file and start to run I get this error: Exception: Error loading mesh file: scapula.obj. The file should exist in same folder with model. Loading is aborted. This scapula file is in the exact same folder that my model i...
by Clarissa LeVasseur
Mon Jul 18, 2016 8:07 am
Forum: OpenSim
Topic: Interpolating ligament curve during forward dynamics
Replies: 2
Views: 364

Re: Interpolating ligament curve during forward dynamics

The ligament is defined as:

<PiecewiseLinearFunction name="force_length_curve">
<x> 0 0.1 0.699778 0.896321 0.96112 0.984873 1 1 1.0625 1.125 1.1875 1.25 1.3125 1.375 1.4375 1.5</x>
<y> 0 0 0 0.00150721 0 0 0 0 0.125 0.25 0.375 0.5 0.625 0.75 0.875 1</y>
</PiecewiseLinearFunction>
by Clarissa LeVasseur
Fri Jul 15, 2016 10:42 am
Forum: OpenSim
Topic: Interpolating ligament curve during forward dynamics
Replies: 2
Views: 364

Interpolating ligament curve during forward dynamics

Hi, So I've created a very simple model to better understand how the ligaments will run before I implement them into my more complicated shoulder model. My current model has a sphere of radius .5 with a mass of 2 dropping with the resting length of the ligament being .5 and the psca_force being 40 (...
by Clarissa LeVasseur
Tue Jun 30, 2015 1:23 pm
Forum: OpenSim
Topic: Updating Muscles in Model
Replies: 2
Views: 267

Re: Updating Muscles in Model

Hello! I have not tried updating the model I am working on from Shutte1993Muscle_Deprecated muscles yet, but according to a webinar found here: https://www.youtube.com/watch?v=Q1rId1fOkjw I believe it is as simple as typing in the name of the type of muscle you want in for the old one. Generally the...
by Clarissa LeVasseur
Mon Jun 29, 2015 9:03 am
Forum: OpenSim
Topic: Applying an external force
Replies: 2
Views: 515

Applying an external force

Hello! I am working with an upper extremity model, and I want to apply a force that will constantly be applied at the center of the hand for a forward dynamic simulation. Without using motion capture systems and force plates to generate a motion or storage file that can be applied to the forward dyn...