[Runningsim-news] RE: Runningsim-news Digest, Vol 2, Issue 2

Mukherjee, Gaurav (mukhergv) mukhergv at mail.uc.edu
Sat Jun 7 13:22:08 PDT 2014


Hello, all,
I am looking for an expression based linear spring (where I can specify a polynomial to model stiffness)/non linear spring. Has anybody found something of this sort? If one exists, please point me to it. In the event that such a spring does not exist in OpenSim, could you point to possible work-arounds?
Thank you!
Best regards,
Gaurav  

Thanks and Regards,

Gaurav Mukherjee
Graduate Student | Department of Mechanical & Materials Engineering | University of Cincinnati




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Subject: Runningsim-news Digest, Vol 2, Issue 2

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Today's Topics:

   1. Re: Runningsim-news Digest, Vol 2, Issue 1 (Christopher Dembia)


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Message: 1
Date: Fri, 6 Jun 2014 09:02:42 -0700
From: Christopher Dembia <cld72 at cornell.edu>
Subject: [Runningsim-news] Re: Runningsim-news Digest, Vol 2, Issue 1
To: runningsim-news at simtk.org
Message-ID:
        <CADav1pu8cOQxExpQ3oA7Yt0TQytoqPDqrs5AyPbq-zpoAjpv1Q at mail.gmail.com>
Content-Type: text/plain; charset="utf-8"

Michel:

If you load a motion ("Load motion"), you can replay that motion by
clicking the blue triangle play button. This does not perform a simulation;
this simply replays a previously-generated motion. The motion could have
been generated via a simulation (RRA, CMC), or from IK, etc.

I think you probably clicked the icon of the running guy. This performs a
forward simulation and ignores any loaded motions.

The file subject02_running_grf.mot is used as input for various tools, such
as RRA and CMC.

What is your objective?


On Fri, Jun 6, 2014 at 2:05 AM, <runningsim-news-request at simtk.org> wrote:

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> Today's Topics:
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>    1. how to use motion file for running simulation? Model just
>       seems to drop... (Audette, Michel A.)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Thu, 5 Jun 2014 21:34:16 +0000
> From: "Audette, Michel A." <maudette at odu.edu>
> Subject: [Runningsim-news] how to use motion file for running
>         simulation? Model just seems to drop...
> To: "runningsim-news at simtk.org" <runningsim-news at simtk.org>
> Message-ID:
>         <22EC75E8215562428ACADFA35877A25A18544525 at JANEWAY.ts.odu.edu>
> Content-Type: text/plain; charset="us-ascii"
>
> Dear members of the Running Sim Community,
>
> I would like to find out how to properly use the motion file
> subject02_running_grf.mot for this running simulator from
> FullBodyModel_Hamner2010_v2_0.osim . The musculoskeletal model does not
> seem to animate per se, but rather drops due to gravity. I would think that
> loading the motion file would take care of that, if I understand the
> tutorials correctly. I am using OpenSim 3.1.
>
> Thanks for your kind consideration.
>
> Best wishes,
> Michel Audette, Ph.D.
> Assistant Professor,
> Department of Modeling, Simulation and Visualization Engineering,
> Old Dominion University,
> Norfolk, VA.
> ________________________________________
> From: runningsim-news-bounces at simtk.org [runningsim-news-bounces at simtk.org]
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> runningsim-news-request at simtk.org]
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