Development of Transmission Force Controllable Actuator for Motion Platform

This paper explores the development of a transmission force controllable actuator for a motion platform. The transmission force plays a crucial role in motion control as they are the direct force moving the target object. In conventional systems, not only is it impossible to directly control these transmission forces, but there is also a discrepancy between the torque produced by the motor and the torque applied to the target object. This discrepancy arises because the torque generated by the motor is partially consumed to overcome mechanical loss such as friction and to operate the transmission devices before it reaches the target object. As a result, the torque that is finally delivered to the target object is less than the torque generated by the motor. This research introduces a novel transmission force controllable actuator designed to mitigate the shortcomings of conventional transmission mechanisms and presents the results of its application within a motion control platform. This actuator enhances the direct control of the transmission forces, thereby aligning the motor's torque more closely with the torque applied to the target object, improving efficiency and control precision.