Study on fatigue elastic life of ball screw pair under ultimate load condition

被引：0
|
作者：
Gong M. [1 ]
Zhou H. [1 ]
Zhou C. [1 ]
Zhuang H. [1 ]
Feng H. [1 ]
机构：
[1] School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing
来源：
Zhou, Changguang (zhoucg@njust.edu.cn) | 1600年 / Science Press卷 / 42期
关键词：
Ball screw pair; Fatigue elastic life; Plastic deformation; Ultimate load;
D O I：
10.19650/j.cnki.cjsi.J2107686
中图分类号：
学科分类号：
摘要：
Ball screw pair is widely used in machinery, aerospace and nuclear industry, etc. due to its high precision and high reliability. In traditional ball screw pair life calculation method, fatigue pitting is adopted as the failure criterion. While under the ultimate load conditions such as the aerospace, ball screw pair is required to bear nearly rated static load in a short time, the main failure mode becomes plastic deformation failure rather than fatigue pitting failure, the traditional fatigue life theory and calculation method based on fatigue pitting are no longer applicable. Based on the plastic contact deformation characteristics of the ball screw pair, the concept and calculation method of fatigue elastic life (FEL) of the ball screw pair were proposed. On the basis of the rigid test bench of the ball screw pair, the FEL test method was designed and tested. It is found that the error of the FEL calculation method proposed in this study is within 15%. The sensitivity analysis shows that the conformity factor has the greatest impact on the FEL of the ball screw pair, followed by the contact angle, the lead, the axial load and the pitch diameter of the screw, and the ball diameter has the smallest impact. © 2021, Science Press. All right reserved.
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页码：37 / 47
页数：10
相关论文
共 26 条
  • [1] GUO X L, XING P F., Review on reliability of ball screw, Mechanical Engineering & Automation, 6, pp. 225-226, (2019)
  • [2] Ball screws-Part 5:Static and dynamic load ratings and operational life:GB/T 17587.5-2008, (2008)
  • [3] SHIMODA H., Re-evaluation of basic dynamic load rating and life formula for a ball screw, Tribol Trans, 50, pp. 88-95, (2007)
  • [4] Ball screws-Part 4: Static axial rigidity: ISO 3408-4:2006
  • [5] ZHOU H X, ZHOU CH G, OU Y, Et al., Recalculation of the basic static load of ball screws, Advances in Mechanical Engineering, 11, 7, (2019)
  • [6] ZHOU CH G, ZHOU H X, FENG H T., Experimental analysis of the wear coefficient of double-nut ball screws, Wear, pp. 446-447, (2020)
  • [7] CHANG Y SH, FENG H T, HAN J, Et al., Design of control system for the reliability of ball screw, Modular Machine Tool & Automatic Manufacturing Technique, 2, pp. 47-50, (2016)
  • [8] YAO L F, SONG CH, XIAO SH D., Accelerated performance degradation life test design of ball screw, Mechanical Engineering & Automation, 5, pp. 219-220, (2019)
  • [9] ZUO L, HU X M, HE Y G, Et al., Accelerated life prediction method for small sample data, Journal of Electronic Measurement and Instrumentation, 34, 11, pp. 26-32, (2020)
  • [10] XUE F, YANG X, CHANG Y SH, Design of control system for life testbed of ball screw, Modular Machine Tool & Automatic Manufacturing Technique, 12, pp. 92-95, (2016)
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