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Pendulum in COSMOS

Question asked by Mike L on Mar 26, 2007
Latest reply on Apr 5, 2007 by Mike L
Hello. This is my first post here, so please reply : )

I created a very simple physical pendulum (see first image below)for the sole purpose of finding out if I can simulate one inCOSMOS. Well, turns out I cannot - or I'm missing something, whichis hopefully the case - and I'll get some hints from the communityregarding the issue.

So I have two parts: The support (fixed in the assembly) and thependulum itself, which is mated to the support so that it canrotate freely. I've added Gravity and moved the pendulum to itsinitial position.

Then I started the simulation thinking that the pendulum willoscillate as it should, but in reality, my pendulum reachedvertical position and stopped! Second image shows this finalposition.

So is there a way to make this thing oscillate? I'd like to try todesign some pendulum-driven mechanisms (clock?), but unless thisissue can be resolved - I'll just have to move on to learning otheraspects SolidWorks.

Thanks for any advice.