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Suspension linkage fixture question

Question asked by Davis Humphrey on Feb 20, 2021
Latest reply on Feb 22, 2021 by Dave Laban

Hello

I'm designing an MTB suspension linkage, and have a basic form for the "rocker" link. I've done a motion study and have imported motion loads appropriately. I would like to run a topology study with this load case but I am not sure how to properly fixture the part. A note; I used hinge mates replaced with bushings in the motion study. The attached photos depict the rocker oriented on the frame with the other links, and the current load/fixture set up I have at the moment. The main pivot has an advanced cylindrical mate restricting axial/radial/transl. . All others are un-fixtured, which I thought would allow for accurate deformation and stress in the part. I've run a topo study with this setup and the results seem strange. I'm not an engineer by any means, just a curious design student, so if this is entirely the wrong approach let me know, please. 

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