Help: tolerance about the constraint

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1

Hi!
wwhen running the model,The modelinformation of the study showded that
the DOF of the model is correct. But when running the knematic
analysis ,the system said fail to resolve knematic constraints.More
description as the following
" constraints No39 above error tolerance 0.000001, error-0.544"
About 13 errors like it.
what should I do?

thanks for your time

Yuening

2

Hi Yuening

The error you get is because your model cannot satisfy the kinematics,
you try to drive the model to something that it can’t.
You should maybe think of how you wanna drive the pelvis of your
model? Maybe you could explain in a bit more detail what exactly your
model should do?

Best regards
Christian, AnyBody Support

— In anyscript@yahoogroups.com, “yueningma” <yueningma@…> wrote:
>
> Hi!
> wwhen running the model,The modelinformation of the study showded that
> the DOF of the model is correct. But when running the knematic
> analysis ,the system said fail to resolve knematic constraints.More
> description as the following
> " constraints No39 above error tolerance 0.000001, error-0.544"
> About 13 errors like it.
> what should I do?
>
> thanks for your time
>
> Yuening
>

3

Hi Yuening

A good tutorial to gain a better understanding of how the model should
be driven and how the model can be made so it is constrained in the
degrees of freedom you want and driven in the rest can be found at
http://www.anybodytech.com/675.0.html
You could walk through the tutorial which I think will help you
understand the problems you have in the model:D
If you have any trouble after you have been through the tutorial I
will be more than happy to help.

Best regards
Christian, AnyBody Support

— In anyscript@yahoogroups.com, “AnyBody Support” <support@…> wrote:
>
> Hi Yuening
>
> So you wanna constrain the pelvis in all DOF exept from moving in the
> x-axis?
> And then the rest of the leg should be driven with the kinematic
markers?
>
> Best regards
> Christian, AnyBody Support
>
> — In anyscript@yahoogroups.com, yuening ma <yueningma@> wrote:
> >
> > Hi Christian!
> > what I want to do is just to find changing of musles forces of the
> leg during certain displacement input from the foot.
> > The pelivs main motion is along human’s axes.,that is the x coord.
> >
> > best regards
> > yuening
> >
> > ----- ԭʼ�ʼ� ----
> > �ˣ� AnyBody Support <support@>
> > �ռ��ˣ� anyscript@yahoogroups.com
> > 2008/1/24(), 5:11:04
> > [AnyScript] Re: Help: tolerance about the constraint
> >
> > Hi Yuening
> >
> > The error you get is because your model cannot satisfy the kinematics,
> > you try to drive the model to something that it can’t.
> > You should maybe think of how you wanna drive the pelvis of your
> > model? Maybe you could explain in a bit more detail what exactly your
> > model should do?
> >
> > Best regards
> > Christian, AnyBody Support
> >
> > — In anyscript@yahoogrou ps.com, “yueningma” <yueningma@ …> wrote:
> > >
> > > Hi!
> > > wwhen running the model,The modelinformation of the study showded
> that
> > > the DOF of the model is correct. But when running the knematic
> > > analysis ,the system said fail to resolve knematic constraints.
More
> > > description as the following
> > > " constraints No39 above error tolerance 0.000001, error-0.544"
> > > About 13 errors like it.
> > > what should I do?
> > >
> > > thanks for your time
> > >
> > > Yuening
> > >
> >
> >
> >
> >
> >
> > ___________________________________________________________
> >
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> >
>
http://cn.mail.yahoo.com/gc/index.html?entry=5&souce=mail_mailletter_tagline
> >
> > [Non-text portions of this message have been removed]
> >
>