hi guys,
Can someone tell me what i am doing wrong? The part only has a roller/slider and it always gives errors... Also when i use a fixed geometry as fixture sw gives me a result.
The part should represent the base of a carjack.
Thanks in advance!
It could be the fixture, only have a roller and that can be sliding everywhere.
Try restraining one edge or even a point in x-y-z. Even on a garage floor a jack base doesn't slide (if it does the mechanic is dead).
So I also could change the roller fixture to a fixed one without losing reality?
That would certainly work as a first pass. See if you get some reasonable results then try to loosen it up a bit to see what happens. I frequently will fix an edge in one direction while keeping the bottom surface restrained in the normal direction only.
If you restrain the bottom surface completely then you can check your resultants and see what direction the forces are heading and their magnitude.
Like James suggested, best to not focus too much on "real" answers to start. Work on getting some result and then adding realism afterwards. You've got a relatively complicated analysis to perform that would take some level of experience with the software and engineering to really get "bang on".
