Dynamic asymptotic model of rolling bearings with a single fault in the inner raceway

被引：11
|
作者：
Li, Yunlong [1 ]
Li, Zhinong [2 ,3 ]
Tian, Danyang [2 ]
Tao, Junyong [3 ]
机构：
[1] Guangxi Univ, Sch Mech Engn, Nanning, Peoples R China
[2] Nanchang Hangkong Univ, Minist Educ, Key Lab Nondestruct Testing, 696,Fenghe South Ave, Nanchang 330063, Jiangxi, Peoples R China
[3] Natl Univ Def Technol, Lab Sci & Technol Integrated Logist Support, Changsha, Peoples R China
来源：
ADVANCES IN MECHANICAL ENGINEERING | 2021年 / 13卷 / 10期
基金：
中国国家自然科学基金;
关键词：
Dynamic model; inner raceway; rolling bearings; single fault; displacement deviation; BALL-BEARING; ELEMENT BEARING; DISTRIBUTED DEFECTS; SIMULATING GEAR; VIBRATION; BEHAVIOR; SIZE;
D O I：
10.1177/16878140211052288
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
In the previous models of rolling bearings with a single fault, the displacement deviation caused by the collision of the fault to the rolling element changes instantly. However, the displacement deviation should change gradually. Here, the asymptotic idea is introduced to describe the change of the displacement deviation. The calculation method of the deviation is given. An asymptotic model of rolling bearings with an inner raceway fault is constructed. Then, the simulation of the SKF6205 bearing with a single fault is carried out. The differences between the previous model and the asymptotic model for the responses and the displacement deviation are compared. The effects of the speed and fault size on the dynamic characteristics are analyzed. Finally, the experiments are carried out to corroborate the rationality of the constructed model. The research results can provide theoretical support for the dynamic analysis, fault diagnosis, and reliability analysis of rolling bearings.
引用
收藏
页数：12
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