Reply To: Self-made car jack – static structural analysis

[josh dudman]

Hi,

I can't see exactly where you've applied your joints/contacts so you may not be doing too much wrong already but do you not need 16 revolute joints in total, one at each end of each arm?

You could delete all of the contacts and apply fixed joints between the screw and the two parts it feeds through.

With a fixed boundary condition on the bottom face of the jack base that should then be stable but not over constrained.

'Joints are being used with large deflection turned off' I believe is an automatic message when using joints and in this case can be ignored as long as deformations look sensible in the results.

Regards, Josh