define the immersed solid domain motion in transient simulation
 

I have taken the specified displacement for the domain motion.
dx=-Ror*w/1[radian]*sin(w*t)*dtime
dy=Ror*w/1[radian]*cos(w*t)*dtime
Ror is eccentric radius , w is angular velocity, t is the accumulated time ,dtime is the time step.

solved it, it only needs to do integration.