I have uploaded my model again as “Test.rar” in folder “Braking Problem”.
This model is used to estimate muscle forces in lower extremities
while braking. Environment model is similar as the sample
“SeatedHuman”. Forces are applied on the foot and torso movement is
constrained by the rigid seat interface.
This model seems work well. However, when I check the simulation
result from InverseDynamicAnalysis, muscle force predicted for muscle
RectusFemoris is 2580N (Fm). It is larger than the Strength (800N). Is
there anything wrong with my model? or do I misunderestand the output
data?
Good you wrote again.
Well I was about to download your model but for some reason Yahoo is
not working right now, but I will take a look at it soon.
Best regards
Christian, AnyBody Support
— In anyscript@yahoogroups.com, “chiayuan_um” <chiayuan_um@…> wrote:
>
> Hi Christian,
>
> I have uploaded my model again as “Test.rar” in folder “Braking
Problem”.
>
> This model is used to estimate muscle forces in lower extremities
> while braking. Environment model is similar as the sample
> “SeatedHuman”. Forces are applied on the foot and torso movement is
> constrained by the rigid seat interface.
>
> This model seems work well. However, when I check the simulation
> result from InverseDynamicAnalysis, muscle force predicted for muscle
> RectusFemoris is 2580N (Fm). It is larger than the Strength (800N). Is
> there anything wrong with my model? or do I misunderestand the output
> data?
>
> Thanks for your help.
>
> Mark
>
I took a quick look at your model.
Which direction do you want to aply the gravity in? From my point of
view it seems like it is wrong, but I might misunderstood the setup.
Best regards
Christian, AnyBody Support
— In anyscript@yahoogroups.com, “chiayuan_um” <chiayuan_um@…> wrote:
>
> Hi Christian,
>
> I have uploaded my model again as “Test.rar” in folder “Braking
Problem”.
>
> This model is used to estimate muscle forces in lower extremities
> while braking. Environment model is similar as the sample
> “SeatedHuman”. Forces are applied on the foot and torso movement is
> constrained by the rigid seat interface.
>
> This model seems work well. However, when I check the simulation
> result from InverseDynamicAnalysis, muscle force predicted for muscle
> RectusFemoris is 2580N (Fm). It is larger than the Strength (800N). Is
> there anything wrong with my model? or do I misunderestand the output
> data?
>
> Thanks for your help.
>
> Mark
>
The gravity in my model is set:
Gravity = {0.0, -9.8, 0.0};
I guess it is the vertical direction in global coordinate. It seems no
problem.
Talking about the gravity, I want to clarify that one of the purpose
the gravity defined in the model is to consider the body weight. Is
that correct?
Mark
— In anyscript@yahoogroups.com, “AnyBody Support” <support@…> wrote:
>
> Hi Again Mark
>
> I took a quick look at your model.
> Which direction do you want to aply the gravity in? From my point of
> view it seems like it is wrong, but I might misunderstood the setup.
>
> Best regards
> Christian, AnyBody Support
>
>
> — In anyscript@yahoogroups.com, “chiayuan_um” <chiayuan_um@> wrote:
> >
> > Hi Christian,
> >
> > I have uploaded my model again as “Test.rar” in folder “Braking
> Problem”.
> >
> > This model is used to estimate muscle forces in lower extremities
> > while braking. Environment model is similar as the sample
> > “SeatedHuman”. Forces are applied on the foot and torso movement is
> > constrained by the rigid seat interface.
> >
> > This model seems work well. However, when I check the simulation
> > result from InverseDynamicAnalysis, muscle force predicted for muscle
> > RectusFemoris is 2580N (Fm). It is larger than the Strength (800N). Is
> > there anything wrong with my model? or do I misunderestand the output
> > data?
> >
> > Thanks for your help.
> >
> > Mark
> >
>
You are welcome.
I just took a look at the model this morning and it seemed like(from
looking at the model in the model view) that you actually wanted the
gravity in the z-direction, but I might made a mistake.
Yes the gravity is made to consider the different weights of the segments.
Best regards
Christian, AnyBody Support
— In anyscript@yahoogroups.com, “chiayuan_um” <chiayuan_um@…> wrote:
>
> Hi Christian,
>
> Thanks for your quick reply.
>
> The gravity in my model is set:
> Gravity = {0.0, -9.8, 0.0};
> I guess it is the vertical direction in global coordinate. It seems no
> problem.
>
> Talking about the gravity, I want to clarify that one of the purpose
> the gravity defined in the model is to consider the body weight. Is
> that correct?
>
> Mark
>
> — In anyscript@yahoogroups.com, “AnyBody Support” <support@> wrote:
> >
> > Hi Again Mark
> >
> > I took a quick look at your model.
> > Which direction do you want to aply the gravity in? From my point of
> > view it seems like it is wrong, but I might misunderstood the setup.
> >
> > Best regards
> > Christian, AnyBody Support
> >
> >
> > — In anyscript@yahoogroups.com, “chiayuan_um” <chiayuan_um@> wrote:
> > >
> > > Hi Christian,
> > >
> > > I have uploaded my model again as “Test.rar” in folder “Braking
> > Problem”.
> > >
> > > This model is used to estimate muscle forces in lower extremities
> > > while braking. Environment model is similar as the sample
> > > “SeatedHuman”. Forces are applied on the foot and torso movement is
> > > constrained by the rigid seat interface.
> > >
> > > This model seems work well. However, when I check the simulation
> > > result from InverseDynamicAnalysis, muscle force predicted for
muscle
> > > RectusFemoris is 2580N (Fm). It is larger than the Strength
(800N). Is
> > > there anything wrong with my model? or do I misunderestand the
output
> > > data?
> > >
> > > Thanks for your help.
> > >
> > > Mark
> > >
> >
>