Search found 4 matches

by Jazmin Cruz
Thu Feb 04, 2021 3:33 pm
Forum: OpenSim
Topic: Static Optimization (3.2 vs 3.3)
Replies: 1
Views: 420

Static Optimization (3.2 vs 3.3)

I remember reading somewhere that the static optimization methodology in OpenSim 3.2 and 3.3 were different. Did I make this up in my head? If not, can I please get some feedback on where I can read about those differences? I feel like there was a difference in something that had to do with how pena...
by Jazmin Cruz
Wed May 06, 2020 2:35 pm
Forum: OpenSim
Topic: Inverse Dynamics - Torque and Forces
Replies: 2
Views: 577

Re: Inverse Dynamics - Torque and Forces

Thanks for the reply! That really helps. Okay, great. Here is my scenario: Using the lumbar spine model, each of the vertebrae is defined as a 3 DOF rotational joint. However, a constraint is used to control the overall flexion/extension of the spine. When ID is run, it reports a force for the const...
by Jazmin Cruz
Mon Apr 13, 2020 10:45 am
Forum: OpenSim
Topic: Inverse Dynamics - Torque and Forces
Replies: 2
Views: 577

Inverse Dynamics - Torque and Forces

I have performed inverse dynamics before using the tutorial provided on the OpenSim Documenation. However, I noticed that not all joints result in both moment and force values. As in, not all joints report both values in the .sto file. My question is, what is the underlying reason why a torque or fo...
by Jazmin Cruz
Wed May 01, 2019 11:31 am
Forum: OpenSim
Topic: Total Metabolic Cost
Replies: 2
Views: 401

Total Metabolic Cost

I am currently going through the "Simulation-Based Design to Reduce Metabolic Cost" and at one point we set report_total_metabolics_only to true. Does this setting calculate the total energy consumption without any information about the muscles that are within your model? For example, if you are wor...