Driving a model with joint angles

I am simulating a bicep curl with internal rotation, and while I can
individually drive the elbow joint velocity (89.129 deg/s) and
individually drive the shoulder internal rotation velocity (32.903
deg/s), I can not drive both together. My tEnd is 1.0, and my nStep
is 100 (default). When I try to drive both joints at the same time,
the inverse dynamics analysis will step until it is nearly complete -
the late 90’s, and I will then get the message that my analysis failed
and it points me to the line that declares “MyStudy.”

Any suggestions as to how to drive the motion with both joint angles?

Thanks for your help.
Sarah

Hi Sarah

Could you please upload the model?

Best regards
Christian, AnyBody Support

— In anyscript@yahoogroups.com, “Sarah R. Sullivan” <sarsulli@…>
wrote:
>
> I am simulating a bicep curl with internal rotation, and while I can
> individually drive the elbow joint velocity (89.129 deg/s) and
> individually drive the shoulder internal rotation velocity (32.903
> deg/s), I can not drive both together. My tEnd is 1.0, and my nStep
> is 100 (default). When I try to drive both joints at the same time,
> the inverse dynamics analysis will step until it is nearly complete -
> the late 90’s, and I will then get the message that my analysis failed
> and it points me to the line that declares “MyStudy.”
>
> Any suggestions as to how to drive the motion with both joint angles?
>
> Thanks for your help.
> Sarah
>

Sure - it will be uploaded by this evening (unfortunately at work I am blocked
from yahoo user groups).

Thanks,
Sarah

-----Original Message-----

> Date: Thu Dec 14 22:58:02 EST 2006
> From: “AnyBody Support” <support@anybodytech.com>
> Subject: [anyscript] Re: Driving a model with joint angles
> To: anyscript@yahoogroups.com
>
> Hi Sarah
>
> Could you please upload the model?
>
> Best regards
> Christian, AnyBody Support
>
> — In anyscript@yahoogroups.com, “Sarah R. Sullivan” <sarsulli@…>
> wrote:
> >
> > I am simulating a bicep curl with internal rotation, and while I can
> > individually drive the elbow joint velocity (89.129 deg/s) and
> > individually drive the shoulder internal rotation velocity (32.903
> > deg/s), I can not drive both together. My tEnd is 1.0, and my nStep
> > is 100 (default). When I try to drive both joints at the same time,
> > the inverse dynamics analysis will step until it is nearly complete -
> > the late 90’s, and I will then get the message that my analysis failed
> > and it points me to the line that declares “MyStudy.”
> >
> > Any suggestions as to how to drive the motion with both joint angles?
> >
> > Thanks for your help.
> > Sarah
> >
>
>