Sorry for boring you, my friends. Recently, I am haunted by a stupid question. It is probably a physics course question rather than a technique one.
Finite element method is now a very popular tool to perform the mechanical simulation. And, in order to model a volumic structure, the solid elements are often applied. In my knowledge, there are no rotational degrees of freedom in general brick(solid) element. If one wants to introduce them into rotating reference frame, the discretized mass system will possess their own inertia in rotating reference respecting to the axis of rotation. Thus, my stupid question is: Could effect of inertia influence the formation of the mass matrix (non rotational degrees of freedom), gyroscopic matrix and spin-stiffness matrix?