Running gait model

Hey,

I’ve tried to run the gait model with some child data. The model seems
to have scaled properly but it won’t run since it’s producing an error
message:

ERROR : C:\Documents and Settings\Child
Gait\Repository.6.0.1\BRep\Aalborg\Leg3D\Mus.any(203) : Iliopsoas
: Unexpected exception in the library OOSol :
OOSol exception : General factorization exception : Negative or
zero pivot

How can I go about resolving it?

Look forward to hearing from you.

thanks

Hi ???

There was a similar posting about this the other day.

Please read posting #918 which shows how to resolve this issue, it is
related to muscle wrapping…

My guess is that the cylinder used for wrapping the iliopsoas muscles is not
scaled properly for your dataset… so the muscle ends up wrapping on one of
the cylinder end edges…

Best regards

Søren, AnyBody Support


From: anyscript@yahoogroups.com [mailto:anyscript@yahoogroups.com] On Behalf
Of sann2392
Sent: 22 April 2008 11:17
To: anyscript@yahoogroups.com
Subject: [AnyScript] Running gait model

Hey,

I’ve tried to run the gait model with some child data. The model seems
to have scaled properly but it won’t run since it’s producing an error
message:

ERROR : C:\Documents and Settings\Child
Gait\Repository.6.0.1\BRep\Aalborg\Leg3D\Mus.any(203) : Iliopsoas
: Unexpected exception in the library OOSol :
OOSol exception : General factorization exception : Negative or
zero pivot

How can I go about resolving it?

Look forward to hearing from you.

thanks

[Non-text portions of this message have been removed]

Hi Soren,

Thanks for your previous help.

I now want to out put joint contact forces, but am not sure how to go
about it. I read post #111, but am still having difficulties
understanding where in the code the changes are made.

I would also like to out put muscle forces as vectors with points of
application on the segments (either in the segment local coordinate
frames or the global frames, would be good to know how to achieve
both), so that they can be used as input for finite element models.

Please could you help.

Thanks
Heena

— In anyscript@yahoogroups.com, “AnyBody Support” <support@…> wrote:
>
> Hi ???
>
>
>
> There was a similar posting about this the other day.
>
>
>
> Please read posting #918 which shows how to resolve this issue, it is
> related to muscle wrapping…
>
> My guess is that the cylinder used for wrapping the iliopsoas
muscles is not
> scaled properly for your dataset… so the muscle ends up wrapping on
one of
> the cylinder end edges…
>
>
>
> Best regards
>
> Søren, AnyBody Support
>
>
>
> _____
>
> From: anyscript@yahoogroups.com [mailto:anyscript@yahoogroups.com]
On Behalf
> Of sann2392
> Sent: 22 April 2008 11:17
> To: anyscript@yahoogroups.com
> Subject: [AnyScript] Running gait model
>
>
>
> Hey,
>
> I’ve tried to run the gait model with some child data. The model seems
> to have scaled properly but it won’t run since it’s producing an error
> message:
>
> ERROR : C:\Documents and Settings\Child
> Gait\Repository.6.0.1\BRep\Aalborg\Leg3D\Mus.any(203) : Iliopsoas
> : Unexpected exception in the library OOSol :
> OOSol exception : General factorization exception : Negative or
> zero pivot
>
> How can I go about resolving it?
>
> Look forward to hearing from you.
>
> thanks
>
>
>
>
>
> [Non-text portions of this message have been removed]
>

Hi Heena,

You can simply measure the forces and moments acting in any point you like
adding a AnyForceMomentMeasure2 to your study folder.

It will analyse all force components you specify acting on the segments you
specified. For example to analyse the joint forces in an ankle this lines
will make it.

 AnyForceMomentMeasure2 M= {

     AnyRefNode &ref = Main.HumanModel.Right.Leg.Seg.Shank.AnkleJoint;

//This is the point of interest

     AnySeg &ref1= Main.HumanModel.Right.Leg.Seg.Shank; //All force

components acting on this segment will be considered

     AnyReacForce

&ref3=Main.HumanModel.Right.Leg.Jnt.Ankle.Constraints.Reaction;//Force base

   };

.

You may want to define a outputfile to write the data for your FEM, just
have a look at Post 1873 about this.

Hope this helps.

Best regards,

Sebastian


From: anyscript@yahoogroups.com [mailto:anyscript@yahoogroups.com] On Behalf
Of sann2392
Sent: 24. april 2008 15:46
To: anyscript@yahoogroups.com
Subject: [AnyScript] Re: Running gait model

Hi Soren,

Thanks for your previous help.

I now want to out put joint contact forces, but am not sure how to go
about it. I read post #111, but am still having difficulties
understanding where in the code the changes are made.

I would also like to out put muscle forces as vectors with points of
application on the segments (either in the segment local coordinate
frames or the global frames, would be good to know how to achieve
both), so that they can be used as input for finite element models.

Please could you help.

Thanks
Heena

— In anyscript@yahoogrou <mailto:anyscript%40yahoogroups.com> ps.com,
“AnyBody Support” <support@…> wrote:
>
> Hi ???
>
>
>
> There was a similar posting about this the other day.
>
>
>
> Please read posting #918 which shows how to resolve this issue, it is
> related to muscle wrapping…
>
> My guess is that the cylinder used for wrapping the iliopsoas
muscles is not
> scaled properly for your dataset… so the muscle ends up wrapping on
one of
> the cylinder end edges…
>
>
>
> Best regards
>
> Søren, AnyBody Support
>
>
>
> _____
>
> From: anyscript@yahoogrou <mailto:anyscript%40yahoogroups.com> ps.com
[mailto:anyscript@yahoogrou <mailto:anyscript%40yahoogroups.com> ps.com]
On Behalf
> Of sann2392
> Sent: 22 April 2008 11:17
> To: anyscript@yahoogrou <mailto:anyscript%40yahoogroups.com> ps.com
> Subject: [AnyScript] Running gait model
>
>
>
> Hey,
>
> I’ve tried to run the gait model with some child data. The model seems
> to have scaled properly but it won’t run since it’s producing an error
> message:
>
> ERROR : C:\Documents and Settings\Child
> Gait\Repository.6.0.1\BRep\Aalborg\Leg3D\Mus.any(203) : Iliopsoas
> : Unexpected exception in the library OOSol :
> OOSol exception : General factorization exception : Negative or
> zero pivot
>
> How can I go about resolving it?
>
> Look forward to hearing from you.
>
> thanks
>
>
>
>
>
> [Non-text portions of this message have been removed]
>

[Non-text portions of this message have been removed]

Hello Heena,

If you are interested in doing FEA with AnyBody, we (Ozen Engineering) have
developed a
product called Any2Ans that exports a complete AnyBody model (or individual
parts) into a
useable form for preforming FEA with Ansys,

Please see message# 1413 for more information on Any2Ans version 1. We are
currently
finishing up updates and are anticipating a version 2 in the next month. You
can view a
previous webcast where Any2Ans is described in further detail at:

http://www.anybodytech.com/199.0.html

called:
Coupling the AnyBody and ANSYS Software Suites for Biomedical Applications (Can
Oszan,
5. December, 2007)

If you have any questions or would like to discuss this product further, feel
free to email
me at

dwwagner@ozeninc.com

Best,
David Wagner, PhD

— In anyscript@yahoogroups.com, “Sebastian Dendorfer” <sd@…> wrote:
>
> Hi Heena,
>
>
>
> You can simply measure the forces and moments acting in any point you like
> adding a AnyForceMomentMeasure2 to your study folder.
>
> It will analyse all force components you specify acting on the segments you
> specified. For example to analyse the joint forces in an ankle this lines
> will make it.
>
> AnyForceMomentMeasure2 M= {
>
> AnyRefNode &ref = Main.HumanModel.Right.Leg.Seg.Shank.AnkleJoint;
> //This is the point of interest
>
>
>
> AnySeg &ref1= Main.HumanModel.Right.Leg.Seg.Shank; //All force
> components acting on this segment will be considered
>
> AnyReacForce
> &ref3=Main.HumanModel.Right.Leg.Jnt.Ankle.Constraints.Reaction;//Force base
>
> };
>
> .
>
> You may want to define a outputfile to write the data for your FEM, just
> have a look at Post 1873 about this.
>
>
>
> Hope this helps.
>
>
>
> Best regards,
>
> Sebastian
>
>
>
> _____
>
> From: anyscript@yahoogroups.com [mailto:anyscript@yahoogroups.com] On Behalf
> Of sann2392
> Sent: 24. april 2008 15:46
> To: anyscript@yahoogroups.com
> Subject: [AnyScript] Re: Running gait model
>
>
>
> Hi Soren,
>
> Thanks for your previous help.
>
> I now want to out put joint contact forces, but am not sure how to go
> about it. I read post #111, but am still having difficulties
> understanding where in the code the changes are made.
>
> I would also like to out put muscle forces as vectors with points of
> application on the segments (either in the segment local coordinate
> frames or the global frames, would be good to know how to achieve
> both), so that they can be used as input for finite element models.
>
> Please could you help.
>
> Thanks
> Heena
>
> — In anyscript@yahoogrou <mailto:anyscript%40yahoogroups.com> ps.com,
> “AnyBody Support” <support@> wrote:
> >
> > Hi ???
> >
> >
> >
> > There was a similar posting about this the other day.
> >
> >
> >
> > Please read posting #918 which shows how to resolve this issue, it is
> > related to muscle wrapping…
> >
> > My guess is that the cylinder used for wrapping the iliopsoas
> muscles is not
> > scaled properly for your dataset… so the muscle ends up wrapping on
> one of
> > the cylinder end edges…
> >
> >
> >
> > Best regards
> >
> > Søren, AnyBody Support
> >
> >
> >
> > _____
> >
> > From: anyscript@yahoogrou <mailto:anyscript%40yahoogroups.com> ps.com
> [mailto:anyscript@yahoogrou <mailto:anyscript%40yahoogroups.com> ps.com]
> On Behalf
> > Of sann2392
> > Sent: 22 April 2008 11:17
> > To: anyscript@yahoogrou <mailto:anyscript%40yahoogroups.com> ps.com
> > Subject: [AnyScript] Running gait model
> >
> >
> >
> > Hey,
> >
> > I’ve tried to run the gait model with some child data. The model seems
> > to have scaled properly but it won’t run since it’s producing an error
> > message:
> >
> > ERROR : C:\Documents and Settings\Child
> > Gait\Repository.6.0.1\BRep\Aalborg\Leg3D\Mus.any(203) : Iliopsoas
> > : Unexpected exception in the library OOSol :
> > OOSol exception : General factorization exception : Negative or
> > zero pivot
> >
> > How can I go about resolving it?
> >
> > Look forward to hearing from you.
> >
> > thanks
> >
> >
> >
> >
> >
> > [Non-text portions of this message have been removed]
> >
>
>
>
>
>
> [Non-text portions of this message have been removed]
>

Hi,

I’m trying to run the gait model with data from a child with cerebral
palsy. The model seems to have scaled well, but is having problems
setting the initial conditions (as the muscles get over stretched and
lose strength), and can’t run.

What do I need to change in the model to go about trying to get it to run?

Please help.
Heena

>
> — In anyscript@yahoogroups.com, “Sebastian Dendorfer” <sd@> wrote:
> >
> > Hi Heena,
> >
> >
> >
> > You can simply measure the forces and moments acting in any point
you like
> > adding a AnyForceMomentMeasure2 to your study folder.
> >
> > It will analyse all force components you specify acting on the
segments you
> > specified. For example to analyse the joint forces in an ankle
this lines
> > will make it.
> >
> > AnyForceMomentMeasure2 M= {
> >
> > AnyRefNode &ref =
Main.HumanModel.Right.Leg.Seg.Shank.AnkleJoint;
> > //This is the point of interest
> >
> >
> >
> > AnySeg &ref1= Main.HumanModel.Right.Leg.Seg.Shank; //All force
> > components acting on this segment will be considered
> >
> > AnyReacForce
> >
&ref3=Main.HumanModel.Right.Leg.Jnt.Ankle.Constraints.Reaction;//Force
base
> >
> > };
> >
> > .
> >
> > You may want to define a outputfile to write the data for your
FEM, just
> > have a look at Post 1873 about this.
> >
> >
> >
> > Hope this helps.
> >
> >
> >
> > Best regards,
> >
> > Sebastian
> >
> >
> >
> > _____
> >
> > From: anyscript@yahoogroups.com [mailto:anyscript@yahoogroups.com]
On Behalf
> > Of sann2392
> > Sent: 24. april 2008 15:46
> > To: anyscript@yahoogroups.com
> > Subject: [AnyScript] Re: Running gait model
> >
> >
> >
> > Hi Soren,
> >
> > Thanks for your previous help.
> >
> > I now want to out put joint contact forces, but am not sure how to go
> > about it. I read post #111, but am still having difficulties
> > understanding where in the code the changes are made.
> >
> > I would also like to out put muscle forces as vectors with points of
> > application on the segments (either in the segment local coordinate
> > frames or the global frames, would be good to know how to achieve
> > both), so that they can be used as input for finite element models.
> >
> > Please could you help.
> >
> > Thanks
> > Heena
> >
> > — In anyscript@yahoogrou <mailto:anyscript%40yahoogroups.com>
ps.com,
> > “AnyBody Support” <support@> wrote:
> > >
> > > Hi ???
> > >
> > >
> > >
> > > There was a similar posting about this the other day.
> > >
> > >
> > >
> > > Please read posting #918 which shows how to resolve this issue,
it is
> > > related to muscle wrapping…
> > >
> > > My guess is that the cylinder used for wrapping the iliopsoas
> > muscles is not
> > > scaled properly for your dataset… so the muscle ends up wrapping on
> > one of
> > > the cylinder end edges…
> > >
> > >
> > >
> > > Best regards
> > >
> > > Søren, AnyBody Support
> > >
> > >
> > >
> > > _____
> > >
> > > From: anyscript@yahoogrou <mailto:anyscript%40yahoogroups.com>
ps.com
> > [mailto:anyscript@yahoogrou <mailto:anyscript%40yahoogroups.com>
ps.com]
> > On Behalf
> > > Of sann2392
> > > Sent: 22 April 2008 11:17
> > > To: anyscript@yahoogrou <mailto:anyscript%40yahoogroups.com> ps.com
> > > Subject: [AnyScript] Running gait model
> > >
> > >
> > >
> > > Hey,
> > >
> > > I’ve tried to run the gait model with some child data. The model
seems
> > > to have scaled properly but it won’t run since it’s producing an
error
> > > message:
> > >
> > > ERROR : C:\Documents and Settings\Child
> > > Gait\Repository.6.0.1\BRep\Aalborg\Leg3D\Mus.any(203) : Iliopsoas
> > > : Unexpected exception in the library OOSol :
> > > OOSol exception : General factorization exception : Negative or
> > > zero pivot
> > >
> > > How can I go about resolving it?
> > >
> > > Look forward to hearing from you.
> > >
> > > thanks
> > >
> > >
> > >
> > >
> > >
> > > [Non-text portions of this message have been removed]
> > >
> >
> >
> >
> >
> >
> > [Non-text portions of this message have been removed]
> >
>

Hi heena,

It looks like you didn’t run the calibration sequence. If you use the
3 elements model the tendon length need to be calibrated in order to
not over stretch the muscles. You have to run the CalibrationSequence
from the operation tree before running the InverseDynamicAnalysis.
You can read the tutorial about muscle model and calibration at
http://www.anybodytech.com/684.0.html

Best regards,
Sylvain, AnyBody Support.

— In anyscript@yahoogroups.com, “sann2392” <sann2392@…> wrote:
>
> Hi,
>
> I’m trying to run the gait model with data from a child with
cerebral
> palsy. The model seems to have scaled well, but is having problems
> setting the initial conditions (as the muscles get over stretched
and
> lose strength), and can’t run.
>
> What do I need to change in the model to go about trying to get it
to run?
>
> Please help.
> Heena
>
>
> >
> > — In anyscript@yahoogroups.com, “Sebastian Dendorfer” <sd@>
wrote:
> > >
> > > Hi Heena,
> > >
> > >
> > >
> > > You can simply measure the forces and moments acting in any
point
> you like
> > > adding a AnyForceMomentMeasure2 to your study folder.
> > >
> > > It will analyse all force components you specify acting on the
> segments you
> > > specified. For example to analyse the joint forces in an ankle
> this lines
> > > will make it.
> > >
> > > AnyForceMomentMeasure2 M= {
> > >
> > > AnyRefNode &ref =
> Main.HumanModel.Right.Leg.Seg.Shank.AnkleJoint;
> > > //This is the point of interest
> > >
> > >
> > >
> > > AnySeg &ref1=
Main.HumanModel.Right.Leg.Seg.Shank; //All force
> > > components acting on this segment will be considered
> > >
> > > AnyReacForce
> > >
>
&ref3=Main.HumanModel.Right.Leg.Jnt.Ankle.Constraints.Reaction;//Force
> base
> > >
> > > };
> > >
> > > .
> > >
> > > You may want to define a outputfile to write the data for your
> FEM, just
> > > have a look at Post 1873 about this.
> > >
> > >
> > >
> > > Hope this helps.
> > >
> > >
> > >
> > > Best regards,
> > >
> > > Sebastian
> > >
> > >
> > >
> > > _____
> > >
> > > From: anyscript@yahoogroups.com
[mailto:anyscript@yahoogroups.com]
> On Behalf
> > > Of sann2392
> > > Sent: 24. april 2008 15:46
> > > To: anyscript@yahoogroups.com
> > > Subject: [AnyScript] Re: Running gait model
> > >
> > >
> > >
> > > Hi Soren,
> > >
> > > Thanks for your previous help.
> > >
> > > I now want to out put joint contact forces, but am not sure how
to go
> > > about it. I read post #111, but am still having difficulties
> > > understanding where in the code the changes are made.
> > >
> > > I would also like to out put muscle forces as vectors with
points of
> > > application on the segments (either in the segment local
coordinate
> > > frames or the global frames, would be good to know how to
achieve
> > > both), so that they can be used as input for finite element
models.
> > >
> > > Please could you help.
> > >
> > > Thanks
> > > Heena
> > >
> > > — In anyscript@yahoogrou <mailto:anyscript%40yahoogroups.com>
> ps.com,
> > > “AnyBody Support” <support@> wrote:
> > > >
> > > > Hi ???
> > > >
> > > >
> > > >
> > > > There was a similar posting about this the other day.
> > > >
> > > >
> > > >
> > > > Please read posting #918 which shows how to resolve this
issue,
> it is
> > > > related to muscle wrapping…
> > > >
> > > > My guess is that the cylinder used for wrapping the iliopsoas
> > > muscles is not
> > > > scaled properly for your dataset… so the muscle ends up
wrapping on
> > > one of
> > > > the cylinder end edges…
> > > >
> > > >
> > > >
> > > > Best regards
> > > >
> > > > Søren, AnyBody Support
> > > >
> > > >
> > > >
> > > > _____
> > > >
> > > > From: anyscript@yahoogrou <mailto:anyscript%40yahoogroups.com>
> ps.com
> > > [mailto:anyscript@yahoogrou <mailto:anyscript%40yahoogroups.com>
> ps.com]
> > > On Behalf
> > > > Of sann2392
> > > > Sent: 22 April 2008 11:17
> > > > To: anyscript@yahoogrou <mailto:anyscript%40yahoogroups.com>
ps.com
> > > > Subject: [AnyScript] Running gait model
> > > >
> > > >
> > > >
> > > > Hey,
> > > >
> > > > I’ve tried to run the gait model with some child data. The
model
> seems
> > > > to have scaled properly but it won’t run since it’s producing
an
> error
> > > > message:
> > > >
> > > > ERROR : C:\Documents and Settings\Child
> > > > Gait\Repository.6.0.1\BRep\Aalborg\Leg3D\Mus.any(203) :
Iliopsoas
> > > > : Unexpected exception in the library OOSol :
> > > > OOSol exception : General factorization exception : Negative
or
> > > > zero pivot
> > > >
> > > > How can I go about resolving it?
> > > >
> > > > Look forward to hearing from you.
> > > >
> > > > thanks
> > > >
> > > >
> > > >
> > > >
> > > >
> > > > [Non-text portions of this message have been removed]
> > > >
> > >
> > >
> > >
> > >
> > >
> > > [Non-text portions of this message have been removed]
> > >
> >
>