Mechanical characteristics and nonlinear dynamic response analysis of rotor-bearing-coupling system

被引：48

作者：

Cheng, Hongchuan ^{[1
]}

Zhang, Yimin ^{[2
]}

Lu, Wenjia ^{[1
]}

Yang, Zhou ^{[1
]}

机构：

[1] Northeastern Univ, Sch Mech Engn & Automat, Shenyang 110819, Peoples R China

[2] Shenyang Univ Chem Technol, Equipment Reliabil Inst, Shenyang 110142, Peoples R China

来源：

APPLIED MATHEMATICAL MODELLING | 2021年 / 93卷

基金：

中国国家自然科学基金;

关键词：

Rotor-bearing system; Mechanical characteristics; Nonlinear dynamics; Bifurcation diagrams; Poincar? sections; BALL-BEARINGS; VIBRATIONS; CHAOS; HYSTERESIS;

D O I：

10.1016/j.apm.2020.12.041

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A mathematical model is presented for studying the dynamic properties of rotor-bearing coupling system under the effects of varying compliance, radial clearance, rotor-stator rubbing, raceway defects and surface waviness. Nonlinearity of bearings, localized and distributed defects will elicit abundant nonlinear response, which will directly affect the mechanical characteristics of bearings as well as motion stability of rotor systems. The effects of typical parameters on mechanical characteristics and nonlinear dynamic response of the rotor system are analyzed by means of bifurcation diagrams, speed-amplitude, time histories, spectrum, phase diagrams, and Poincare sections. The results provide theoretical support for studying the nonlinear vibration mechanism and the control of rotor-bearing system in practical applications.

引用

页码：708 / 727

页数：20

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