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Suspension modell - bellcrank

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samsm

Structural
Apr 18, 2010
2
Hi,

presently I am trying to simulate a cfrp monocoque and to my shell-model I also want to include the whole suspension – and my main problem is the idealization of the bellcrank!

I have modelled the control arms via 1d-CROD elements, connected via RBE2 elements to the shell model of the monocoque – and the wheel support is also made of RBE2s.

But as I said – my problem is the bellcrank. Currently it is a CROD-triangle with connected CROD-pull-rod and CELAS1-spring. With this model basically it works – but the problem is, that it has no defined rotational axis and therefore the whole bellcrank (better CROD-triangle) deforms uncontrolled and not planar, like it should (just rotation around the rocker).

Perhaps, someone knows a proper solution for my problem??

And also a question to the CROD elems: I have defined CROD-properties with a large Young’s Modulus to get “almost” stiff elements – but it is defnintly not the most elegant way! I also tried RRODs…but I just got errors…and no solution!

Best Regards
Michael Sams
 
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Hey guys,

really no one - who knows a solution for my problem??

Best Regards
Michael Sams
 
I've never met anybody who uses MotionSolve for mechanisms analysis. Altair occasionally sound a bit hurt when I report my experiences with their software, so I guess now is the time to contact customer support.



Cheers

Greg Locock


New here? Try reading these, they might help FAQ731-376
 
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