期刊
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
卷 48, 期 1-2, 页码 77-91出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ymssp.2014.02.017
关键词
Ball screw preload; Order tracking; Vold-Kalman filtering; Ball pass frequency
资金
- Hiwin Technologies Corp.
- Ministry of Economic Affairs (MOEA)
- National Science Council (NSC) of Taiwan, Republic of China [100-EC-17-A-05-S1-189]
A technique of determining the onset of preload loss in a ball screw feed drive system via monitoring the change of ball pass frequency is proposed. The ball pass frequency of a ball screw with preload is smaller than that of ball screw without preload due to friction caused by the preload. Results from both simulations and experiments show that the ball pass frequency can be detected using the method of Angular Velocity Vold-Kalman Filtering Order Tracking (AV VKF-OT). And AV VKF-OT provides a much better performance as compared to the traditional order tracking in terms of resolution and accuracy. Tests were conducted on ball screw feed drive systems with different preloads for the performance assessment of the ball pass frequency detection. Results show that the preload loss increases the ball pass frequency and also induces the side band around the ball pass frequency, which provides promising criteria in detecting the onset of preload loss of ball screws. (C) 2014 Elsevier Ltd. All rights reserved.
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