Journal
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
Volume 157, Issue -, Pages -Publisher
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ymssp.2021.107632
Keywords
Ball passage vibration; Time-dependent; Ball screw mechanism; Dynamic model
Categories
Funding
- Fundamental Research Funds for the Central Universities [N2003006]
- National Natural Science Foundation of China [51675089, U1708254]
- China Postdoctoral Science Foundation [2017M610180]
Ask authors/readers for more resources
A general time-dependent dynamic model for describing ball motion and axial periodic micro fluctuation within a ball screw subjected to external load is proposed in this study. The effects of applied load, preload, and screw rotational speed on dynamic response are discussed theoretically, and reducing vibration amplitude is suggested through small ball diameter and phase difference between ball groupings. The proposed model is experimentally validated.
Ball passage vibration arising during recirculation of rolling elements is a limitation of high-precision performance associated with ball screw. A relatively deep understanding of this phenomenon when rolling balls leave load area and enter circulation channel has been achieved by now. However, few mechanical models are established for calculation of rolling ball contact deformation and force inside nut while moving by taking into account transient phase at import and export of circulation channel. In this work, we present a general time-dependent dynamic model for description of ball motion and axial periodic micro fluctuation within ball screw subjected to external load. The numerical simulation is employed to deal with equation of motion including segmented restoring force function. Effects of applied load, preload and screw rotational speed on dynamic response are discussed theoretically. Reduced vibration amplitude may be realized by small ball diameter and phase difference between ball groupings. Proposed model is experimentally illustrated. (c) 2021 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available