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FEA Simulation on a Pivot
Dylan_Walker
Member Posts: 4 ✭
in Simulation
Hi All,
I have two lengths of SHS that I am trying to connect via pivot joint using a M20 bolt and welded on brackets. I am trying to run a simulation of the set up but I can only use the revolute mate on one side of the bracket and when I run the simulation it fixes (bond) the other bracket and bolt together giving a high torsion zone that obviously fails the simulation. I have played around with different setting but can't seem to get it to work I am new to Onshape and would appreciate any suggestions.
Thanks in advance!
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Answers
do you have a link to a public doc with this setup?
First thought would be to add a cylindrical mate on between the bolt and the other bracket (a revolute is hard to do as tolerances often make it over-defined).
If that doesn't help, change the "method" to just "mates" instead of "Mates and touching faces" (you may have to add some additional mates depending on how things are otherwise constrained.
Hi Greg and Eric,
Thanks for commenting.
I have tried to use cylindrical mate and use just "mates" for connectivity method. The issue is the other through hole for the bolt to go through doesn't have a mating connection and if i use another cylindrical or revolute connection to define it, it causes an error with the first cylindrical mate. Bonding cause the high torsion zone.
I think I will just fix everything and treat as a fixed cantilever. Is there an exclude from simulation feature in onshape?
Thank you for your suggestion and if you have any more please let me know as it is appreciated.
Here is a share link of the simulation:https://cad.onshape.com/documents/7dd5c52e4e3475ea0f27b3cf/w/35dce84908310fd59cbcdea0/e/cfc67e380480e26a6e6bcec7?renderMode=10&uiState=6878452e6e1d2f4d088b2e55