What is a ball screw and how does it work?

以下是一篇关于滚珠丝杠的外文文献： Title: Ball screw drives: Their performance, modeling, and control – A review Authors: Adel A. El-Sharkawy, Mohamed H. Elbestawi Journal: Mechanism and Machine Theory Year: 2003 Abstract: Ball screw drives are widely used in many applications due to their high efficiency, low friction, and high accuracy. This paper provides a comprehensive review of the performance, modeling, and control of ball screw drives. The performance analysis includes the kinematic and dynamic behavior of ball screw drives, as well as the influence of various design parameters on their performance. The modeling section discusses the development of mathematical models for ball screw drives, including both analytical and numerical approaches. The control section presents various control strategies that have been used to improve the performance of ball screw drives, such as position control, velocity control, and force control. The review concludes by discussing some of the current challenges and future research directions in the field of ball screw drives. Keywords: ball screw drives, performance analysis, modeling, control.