CATIA V5. Is the Parallel kinematics simulation is possible?

[Simon Dantec]

Hello,

I'm currently doing a project about the simulation of the motion of a parallel kinematics machine. I develop my skills about the dmu kinematics module during more than one month and try to simulate this parallel kinematics robot during an other month. Now I am lock, at the begining I have try with the natural joint of the robot (prismatic and revolute joint) but the message "the mechanism is too much drived" come up when I put more than one driver. Then I've tried with other joint, replace the driver and many more things. But no way to correctly simulated it. Then I ask here if someone have an idea about this mechanism.
There is and images of the mechanism:
1: Prismatic joint
2: revolute joint
3: revolute joint

View attachment 1335

Thanks for your help and for more information about the product feel free to ask it.

 

[MrCATIA]

Looks interesting. What is the motion? (does the center part move up-and-down? and the vertical corner posts rotate in-and-out?) What is the driver part?

 

[Simon Dantec]

The vertical corner posts just move up and down independantly from each other (the 3 drivers are length diver on the prismatic joint wich link the corner posts to the vertical guide).
That provide to the center plateform a motion, not just up and down, but in an orthogonal axis system and I think that is the problem for catia. It can't handle this kind of motion but I hope I'm wrong.

 

[MrCATIA]

Thanks for the explanation. I agree with your joint definition; 1. prismatic & driver, 2. revolute, 3. revolute. And same joints on all three corners. Frame is fixed.

Yes, it is possible!