Search found 9 matches

by Giulia Ghielmi
Tue Mar 05, 2024 4:53 am
Forum: OpenSim
Topic: Trying to update the state with motion's coordinates
Replies: 2
Views: 421

Re: Trying to update the state with motion's coordinates

It worked, thanks for the help! :D
by Giulia Ghielmi
Fri Dec 01, 2023 5:02 am
Forum: OpenSim
Topic: Trying to update the state with motion's coordinates
Replies: 2
Views: 421

Trying to update the state with motion's coordinates

Hello everyone! :D I'm trying to use this function https://github.com/modenaxe/MuscleForceDirection/blob/master/MATLAB/matlab_tool_v4.0/getCurrentMusclePathAsMat.m from Luca Modenese to extract the muscle path. I'm encountering problems regarding the state. For now I've used only: state = model.init...
by Giulia Ghielmi
Mon Nov 20, 2023 10:38 am
Forum: OpenSim
Topic: How to obtain joint angular velocity and joint angular acceleration by inverse kinematics tool?
Replies: 6
Views: 1377

Re: How to obtain joint angular velocity and joint angular acceleration by inverse kinematics tool?

Hello! Have you found a solution for this problem? I encountered the same problems.

Thanks in advance.
by Giulia Ghielmi
Mon Nov 20, 2023 9:09 am
Forum: OpenSim
Topic: BodyKinematics Tool - acceleration
Replies: 1
Views: 608

BodyKinematics Tool - acceleration

Hello everyone! I've a problem with the BodyKinematics Tool. I am trying to calculate the equilibrium of forces for each instant of time, the problem is related to the force of inertia and therefore the acceleration of each instant. To calculate the force of inertia i was thinking of using the accel...
by Giulia Ghielmi
Wed Sep 13, 2023 3:07 pm
Forum: OpenSim
Topic: Local Reference Systems - Ground Reference System : rotation and translation
Replies: 2
Views: 820

Re: Local Reference Systems - Ground Reference System : rotation and translation

Thank you! I'll check all the functions and see if they work :)
by Giulia Ghielmi
Thu Aug 03, 2023 8:04 am
Forum: OpenSim
Topic: Local Reference Systems - Ground Reference System : rotation and translation
Replies: 2
Views: 820

Local Reference Systems - Ground Reference System : rotation and translation

Hello everyone! Would anyone be able to help me extract in MATLAB all the information (translation and rotation) concerning local reference system with respect to ground reference system? I need this information to build my OpenSim's model in Abaqus. To find the translation of local reference system...
by Giulia Ghielmi
Thu Jun 15, 2023 1:14 am
Forum: OpenSim
Topic: Different PathPoint
Replies: 1
Views: 382

Different PathPoint

Hello everyone! I'm trying to understand the different between Conditional, Moving and Wrap Point. Can someone explain or suggest documents to me in order to understand how they can influence the calculation of Joint Forces and Reactions (used as a point of application of muscle forces). Thank you i...
by Giulia Ghielmi
Thu May 25, 2023 4:44 am
Forum: OpenSim
Topic: Obtaining accelerations of segment CoM
Replies: 5
Views: 1347

Re: Obtaining accelerations of segment CoM

Hi all!
Have you found a solution to this problem? I'm trying to do the equilibrium for each time step and I don't understand how I can calculate the inertial force.
Thank you in advance :D

Giulia
by Giulia Ghielmi
Fri Apr 28, 2023 8:59 am
Forum: OpenSim
Topic: how muscles wrapping is considered in Joint Reaction Analysis
Replies: 0
Views: 212

how muscles wrapping is considered in Joint Reaction Analysis

Hello everyone! I'm writing you because I need help to understand how Joint Reaction Analysis works, in particular how muscle forces are considered in the equilibrium equation for each time step. For each time step I have equation made by F muscle + F weight + F constrain = F inertia. When I haven't...