Abstract. Ball screws are mechanism to convert the rotational into linear motion and viceversa widespread in a variety of different sectors. A detailed high-fidelity dynamic mathematical model such component is paramount several fields and, particular, definition PHM system for flight control EMAs order increase their reliability. In fact they can be used as virtual test bench on which inject a...

Offline programming will be made for simulating the end-effector motion of a 3-axis Cartesian robot to figure out whether it could be positioned within the bound of peg-in-hole working condition or not. The 3axis Cartesian robot is for handling glass lenses of both digital cameras and cellular phone cameras of which needs are gradually increasing worldwide. The endeffector of robot has a vacuum...

Abstract This paper presents a heuristic friction compensation approach for handling the rolling friction behaviors of ball-screw-driven stages in the zero-velocity crossing regions including non-velocity-reversal motion. The rolling friction behaves in a nonlinear way, and would significantly deteriorate the control performance. Since the alteration of elastic energy in mechanical components o...