Unstable assembly during simulation

Hello 

Attached is an unstable model in simulation. I can't determine the instabilities... Could you help me?

Kind regards 

Florian


simulation_ct_2500x1200.7z

Hello 

Do you have an idea? 

Kind regards 

Florian

Hello 

The problem of instability comes from the bolt connectors which are too small. To solve this problem by getting as close as possible to my case, I used the rigid connectors (connections/rigid connection) - Source technical support

The whole is no longer unstable.

Kind regards 

Florian