Optimal design of acceleration test of motorized spindle of numerical control Machine Tool considering parameter weight

被引：0
|
作者：
Zhao H.-X. [1 ,2 ]
Yang Z.-J. [1 ,2 ]
Chen C.-H. [1 ,2 ,3 ]
Tian H.-L. [1 ,2 ]
Wang L.-P. [4 ]
机构：
[1] Key Laboratory of Numerical Control Equipment Reliability, Ministry of Education, Jilin University, Changchun
[2] College of Mechanical and Aerospace Engineering, Jilin University, Changchun
[3] Chongqing Research Institute, Jilin University, Chongqing
[4] Department of Mechanical Engineering, Tsinghua University, Beijing
来源：
Jilin Daxue Xuebao (Gongxueban)/Journal of Jilin University (Engineering and Technology Edition) | 2022年 / 52卷 / 02期
关键词：
Accelerated degradation test; Motorized spindle; Numerical control machine; Optimal design; Reliability;
D O I：
10.13229/j.cnki.jdxbgxb20211148
中图分类号：
学科分类号：
摘要：
In order to solve the problem of low estimation accuracy of some model parameters in the multi stress step stress accelerated degradation test of motorized spindle, a new optimal design method of multi stress step stress accelerated degradation test scheme is proposed in this paper. The sensitivity analysis method and the comprehensive importance of stress are used to determine the weight of each parameter of the acceleration model in the accelerated degradation test, A new optimal design criterion is proposed based on Ds-optimality and parameter weight; the optimization process is given combined with genetic algorithm. Finally, taking the motorized spindle made in China as an example, the accelerated degradation test scheme is optimized, and the results are compared with the existing criteria, verify the effectiveness of the method. © 2022, Jilin University Press. All right reserved.
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页码：409 / 416
页数：7
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