Hello everyone,

I have a problem with a simulation that i cannot run. I have tried to solve the problem many times but there is obviously something wrong that I am doing.

The problem is, I am doing a simulation of a landing gear (I put the file in attachment). This landing gear will have its bottom part landing on the floor and the top part needs to carry almost 40kg. For the simulation, I am doing it in a static case, then I add the displacements and everything which is needed to run the simulation but every time it stops. Normally it should be just a simple simulation to check the landing gear deformation but I cannot see where is the problem. 

If someone could help me on this problem.

Thank you in advance.