Abstract: Two-degree-of-freedom (2DOF) pointing mechanisms, including the gimbal structure, the 1-RR&2-RRR spherical parallel mechanism (SPM), and the Omni-Wrist III, are increasingly applied in tracking devices, mechanical ...

Abstract: In current real-time hybrid testing (RTHT), command displacement is applied to the experimental substructure and a restoring force is fed back to the integration algorithm at each time step between the numerical and physical ...