Fix a bug for the inertial stiffness matrix of rigid body. The local translational acceleration should be used.
Fix a bug for the inertial stiffness matrix of rigid body. The local translational acceleration should be used.

projectchrono/chrono,projectchrono/chrono,projectchrono/chrono,projectchrono/chrono,rserban/chrono,rserban/chrono,dariomangoni/chrono,rserban/chrono,rserban/chrono,dariomangoni/chrono,dariomangoni/chrono,rserban/chrono,rserban/chrono,dariomangoni/chrono,projectchrono/chrono,dariomangoni/chrono,projectchrono/chrono,rserban/chrono,dariomangoni/chrono