Search found 118 matches

by Karthick Ganesan
Mon Sep 21, 2020 11:41 pm
Forum: OpenSim Moco
Topic: MocoOrientationTrackingGoal
Replies: 23
Views: 2361

Re: MocoOrientationTrackingGoal

Thanks Nick. I have tried it . But I could not get good convergence with implicit multibody dynamics.
Regards,
Karthick.
by Karthick Ganesan
Sat Sep 19, 2020 8:52 am
Forum: OpenSim Moco
Topic: MocoOrientationTrackingGoal
Replies: 23
Views: 2361

Re: MocoOrientationTrackingGoal

That 's great. I am interested in minimizing generalized accelerations.
Is it available in any of the 0.5 build?
Thanks.
by Karthick Ganesan
Thu Sep 17, 2020 6:15 am
Forum: OpenSim Moco
Topic: MocoOrientationTrackingGoal
Replies: 23
Views: 2361

Re: MocoOrientationTrackingGoal

Hi Nick,
Do you mean MocoAccelerationTrackingGoal?. The documentation says it is for linear accelerations.
Thanks,
Karthick
by Karthick Ganesan
Wed Sep 09, 2020 10:26 am
Forum: OpenSim Moco
Topic: Simulate results from MocoSolution
Replies: 1
Views: 312

Re: Simulate results from MocoSolution

Hi Lea,
It will work only for simple models. Pls see the below thread.
viewtopicPhpbb.php?f=1815&t=11866&p=33355&start=0&view=

Karhick.
by Karthick Ganesan
Wed Sep 09, 2020 10:15 am
Forum: OpenSim Moco
Topic: Using metabolics probe with DeGrooteFregly2016Muscle
Replies: 59
Views: 7857

Re: Using metabolics probe with DeGrooteFregly2016Muscle

Thank you Ross Miller for sharing your results and experience.

Karthick.
by Karthick Ganesan
Wed Sep 09, 2020 9:53 am
Forum: OpenSim Moco
Topic: Modifying passive force-length curve properties of DeGrooteFregly2016Muscle
Replies: 3
Views: 379

Re: Modifying passive force-length curve properties of DeGrooteFregly2016Muscle

Thanks Nick. As Ross pointed out that in his model rectus femoris produces high passive force in the beginning of swing phase, I wanted to tweak some passive force properties. Passive strain at one norm force is already set as 1 compared to the default 0.6. So thought of changing curviness or expone...
by Karthick Ganesan
Wed Sep 09, 2020 7:46 am
Forum: OpenSim Moco
Topic: Using metabolics probe with DeGrooteFregly2016Muscle
Replies: 59
Views: 7857

Re: Using metabolics probe with DeGrooteFregly2016Muscle

Thanks Ross and Nick for your suggestions. Ross, I normalized the weights by the number of terms. I used 1/22 for states and contact tracking terms and 13/28 for control effort term. However tracking was not so good, especially oscillations in HGRF. I used Umberger's model (Umberger2010MetabolicsPro...
by Karthick Ganesan
Mon Sep 07, 2020 11:57 am
Forum: OpenSim Moco
Topic: Using metabolics probe with DeGrooteFregly2016Muscle
Replies: 59
Views: 7857

Re: Using metabolics probe with DeGrooteFregly2016Muscle

Thank you Ross Miller. Could you please suggest me some literature for this, if possible. I may need to justify this in my writing. I managed to get a reasonable cost by increasing the weight on the effort term at the price of tracking. I got some oscillations in the HGRF. I am wondering how to fix ...
by Karthick Ganesan
Sat Sep 05, 2020 2:04 pm
Forum: OpenSim Moco
Topic: Modifying passive force-length curve properties of DeGrooteFregly2016Muscle
Replies: 3
Views: 379

Modifying passive force-length curve properties of DeGrooteFregly2016Muscle

Hi all,
How can I modify the passive FL curve properties of this muscle. I can modify the passive fiber strain at one norm force . What about the other properties?
Thanks,
Karthick.
by Karthick Ganesan
Sat Sep 05, 2020 1:59 pm
Forum: OpenSim Moco
Topic: Using metabolics probe with DeGrooteFregly2016Muscle
Replies: 59
Views: 7857

Re: Using metabolics probe with DeGrooteFregly2016Muscle

Hi all, What is the difference between adding a prescribed controller to a model and just including the controls .sto file under controller set in the analysis setup file? Both seems to give the same result. When using the prescribed controller ( i.e, PrescribedController('controls.sto'), should one...