How to make a animation and computation of DOUBLE ACTING OSCILLATING STEAM ENGINE?

I'm using DOUBLE ACTING OSCILLATING STEAM ENGINE as a reference for my project.
My prof asking me on what are the forces or load and other given can be computed when you have a rotation of 150deg? (reference below) Also, how do you mate it on Solidworks and make a motion study (animation)?

https://imgur.com/a/ZLJk9Zt
https://imgur.com/nqCUcsa