Performance evaluation of a Ball Screw mechanism through a multibody dynamic model

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 artificial defects study effect specific indicators. This paper presents MBD single-nut ball screw with internal recirculation able describing full each allowing more in-depth understanding behavior poses basis PHM-oriented analyses degradations.