Hello,

I would like to plot z(x(t)) with the odeplot function.

For the moment, i manage to plot x(t) and z(t).

But i don't manage to plot z(x(t)) ?

My last code lign is wrong.

Can you help me for this plotting ?

Thanks a lot

Here my code :

M:=1;                               

1l:=1;

g:=9.81; 

sys:=diff(z(t),t,t)=-1/z(t)*diff(x(t),t)^2-1/z(t)*diff(z(t),t)^2-x(t)/z(t)*diff(x(t),t,t),M*(-l^2/(x(t)*z(t)))*diff(x(t),t,t)=M*g-M*(-1/z(t)*diff(x(t),t)^2-1/z(t)*diff(z(t),t)^2);  

Cinit:=D(x)(0)=0,x(0)=0.99999999,D(z)(0)=0,z(0)=sqrt(l^2-0.99999999^2); D(x)(0) = 0, x(0) = 0.99999999, D(z)(0) = 0, z(0) = 0.0001414213562

sol:=dsolve({sys,Cinit},numeric);

tx:=odeplot(sol,[t,x(t)],0..10,numpoints=200,color=blue,legend="x"):display(tx);

 tz:=odeplot(sol,[t,z(t)],0..10,numpoints=200,color=blue,legend="z"):display(tz); 

txz:=odeplot(sol,[x(t),z(x(t))],0..10,numpoints=200,color=blue,legend="z"):display(tz);(x)

Hello,

I use Maple to solve dynamics of multibody systems. In the mechanical system i study, all my kinematic schemes use the parameter gamma and the project i work on, many people use the parameter gamma.

The issue is that i use the parameter gamma(t) depending of the time and if i use this parameter Maple treat this parameter as the Euler constant gamma and consequently make bad simplifications.

Is it possible to add a code lign to desactivate this...

Hello,

It's a very easy question but i don't find for the moment.

I want to measure an angle in a revolute joint. For that purpose, i use a probe to measure the angle. The angle is measured in rad. How can i do to change in deg ?

Thank you for your help.

Hello,

It's a very easy question but i don't find for the moment.

I want to measure an angle in a revolute joint. For that purpose, i use a probe to measure the angle. The angle is measured in rad. How can i do to change in deg ?

Thank you for your help.

Hello,

I need to model universal joint and spherical joint with spring elements.

Contrary to the revolute joint where there is an option to put spring element, i don't find this option in the universal joint and the spherical joint. So is there a simple solution to model spring in this kind of joint.

I hope that i shouln't have to build the joint with several revolute joint in serial.

Thank you for your help.