Solver unable to complete the analysis. [ERROR # 941]

Alessia

Hi,

I'm trying to run the optistruct analysis in this model. The goal is:
to set 3 contacts with interference,
to put a constraint on the upper surface,
to put pressure on 2 areas.

I'm attaching the file. 

Can you help me?
Thank you

Alessia

Hi everyone,

now it works.
I've just considered a larger area of contact.

I'm attaching the new file if it can help someone