VIBRATION ANALYSIS OF A ROLLER BEARING WITH A BUMP DEFECT

被引：0

作者：

Shi, Zhifeng ^{[1
]}

Liu, Jing ^{[1
]}

Chen, Zaigang ^{[2
]}

Shao, Yimin ^{[1
]}

机构：

[1] Chongqing Univ, State Key Lab Mech Transmiss, Chongqing, Peoples R China

[2] Southwest Jiaotong Univ, State Key Lab Tract Power, Chengdu, Sichuan, Peoples R China

来源：

PROCEEDINGS OF THE ASME INTERNATIONAL DESIGN ENGINEERING TECHNICAL CONFERENCES AND COMPUTERS AND INFORMATION IN ENGINEERING CONFERENCE, 2018, VOL 8 | 2018年

基金：

中国国家自然科学基金;

关键词：

roller bearings; bump defect; dynamic model; vibration analysis; ROLLING ELEMENT BEARINGS; LOCALIZED DEFECT; MODEL; MECHANISM; CONTACT;

D O I：

暂无

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Vibration performances of roller bearings are greatly affected by various localized defects. Thus, it is very important to analyze vibration characteristics of the roller bearings with the localized defects. In this paper, a nonlinear dynamic model is developed to formulate the effect of a localized defect on the vibration characteristics of a cylindrical roller bearing (CRB). A bump defect is formulated in this model. The defect profile is defined as a spherical one. The time-varying displacement excitation caused by the defect is modelled. Effects of the defect sizes on the vibration characteristics of the roller bearing are discussed. The simulation results show that the developed method can provide some guidance for understanding the vibration characteristics of the CRB with a bump defect.

引用

页数：4

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