How to get angular velocity of working point in Dynamic Simulation

[Anonymous]

Hi, is there a way to obtain the angular velocities of a working point in a dynamic simulation?

I can track the position and translational velocities but to fully analyse the motion i need to get to the angular velocities of my working point which is at the center of mass. Is there a way to do that?

Thanks!

[Anonymous]

Still struggeling to find a solution for the angular velocity results! Anybody?

[JDMather]

Attach assembly here.

...and indicate what stationary reference point (or axis) that you want to measure your velocity relative to.

[Anonymous]

Hi, thanks for your reply. I attached my assembly. It's the cylinder with complex motion that i need to describe with its angular velocities and transitional velocities relative to the domain origin. Thanks!

[Anonymous]

Hey @JDMather 

have you had time to look at my file? I'm sill wondering if i can get angular velocites of the working point..

Thanks alot!

[JDMather]

The assembly that you attached in this thread has a redundant constraint.

I thought you had a version were there were no redundant constraints and the simulation had an imposed motion set up and ready to go?

[Anonymous]

Ok, sorry i was not aware of that. I attached a newer version which should be ready to simulate! Thanks!

[JDMather]

Well, your mechanism is still overconstrained - but the Attached might get you closer.

Examine the Output Grapher.

[Anonymous]

Thank you very much for your reply! I will study this now..

[lena.talkhina]

Hello @Anonymous !

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[Anonymous]

Hi @JDMather ,

i studied your assembly and it looks like you added a sphere and a bunch of constraints. Also there is another joint. Unfortunately i do not understand well enough how this works yet..

My aim is to transfer the movement the cylinders makes to a different simulation program which can describe the movement by applying rotational and translational velocities. I think the translational velocites i can get by simulating the Center of the Cylinder with Output grapher. For the rotational velocities i'm not sure how the get these still. I attached a drawing... Green lines are fixed with the cylinder. The black lines are stationary. Is this correct approach you think? How can i get this from Inventor...

From your Output Grapher i see a new rot. velocity in deg/s but i don't understand which rot. velocity it describes exactly..

Sorry to bother you with this still..