Dynamic performance reliability analysis of rolling linear guide under parameter uncertainty
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DOI 10.1007/s12206-020-1012-8
Journal of Mechanical Science and Technology 34 (11) 2020 Original Article DOI 10.1007/s12206-020-1012-8 Keywords: · Rolling linear guides · Interval number · Uncertainty · Dynamic reliability
Dynamic performance reliability analysis of rolling linear guide under parameter uncertainty Jian Li1, Yan Ran1, Hongwei Wang1, Guangquan Huang1, Zongyi Mu1 and Genbao Zhang1,2 1
Correspondence to: Yan Ran [email protected]
Citation: Li, J., Ran, Y., Wang, H., Huang, G., Mu, Z., Zhang, G. (2020). Dynamic performance reliability analysis of rolling linear guide under parameter uncertainty. Journal of Mechanical Science and Technology 34 (11) (2020) 4525~4536. http://doi.org/10.1007/s12206-020-1012-8
Received May 11th, 2020 Revised
July 21st, 2020
Accepted August 25th, 2020 † Recommended by Editor No-cheol Park
© The Korean Society of Mechanical Engineers and Springer-Verlag GmbH Germany, part of Springer Nature 2020
State Key Laboratory of Mechanical Transmissions, Chongqing University, Chongqing 400044, China, School of Mechanical and Electrical Engineering, Chongqing University of Arts and Sciences, Chongqing 402160, China
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Abstract
This paper presents a dynamic reliability analysis method of rolling linear guide considering the uncertainty of geometric parameters. A three degree of freedom (DOF) dynamic motion model of rolling linear guide that considers the complexity of the actual load is established. In order to improve the accuracy of reliability evaluation, interval model is used to express the uncertainty of geometric parameters. The reliability range of dynamic response is determined according to the accuracy grade of rolling linear guide. The interval reliability calculation method is used to analyze and calculate the horizontal and vertical dynamic reliability of rolling linear guide. Then, the comprehensive dynamic reliability of rolling linear guide is obtained. Finally, the dynamic reliability of the SHS-45R rolling linear guide is analyzed by using the reliability evaluation method described in this paper. And the validity and accuracy of the result is demonstrated by comparing with the Monte Carlo simulation.
1. Introduction In recent years, CNC machine tool is developing towards high speed and high precision, which put forward higher requirements for machining performance and stability. The rolling linear guide has the advantages of high positioning accuracy, small friction coefficient, good accuracy retention, good maintainability and so on. It has become an important functional component of CNC machine tool [1]. Thus, it is necessary to study the dynamic characteristics of rolling linear guide to ensure the machining performance of machine tools [2, 3]. The influence of various factors on the dynamic performance of rolling linear guide has been studied, such as friction, wear and preload. Yi et al. [4] studied the influence of friction on the dynamic characteristics of linear guide by experiment and theoretical method. Zou et al. [5] established a prediction model
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