PDF tutorial with Transient Structural FEA of heat generated between a piston and a cylinder; 57 pages in which we learn: - how to properly simplify a complex model - how to assign a complex Contact - how to insert Joints, with the ground and between bodies - how to resize the Mesh - how to prescribe APDL commands - how to define complex Analysis Settings and stabilize the solving - how to define proper Solution output: User Defined Result (Temperature), Force Reaction, Contact Pressure, Plastic Strain, Velocity etc.