热致轴承刚度与游隙变化特性及其对转子振动响应的影响

doi:10.3901/JME.2022.13.147

机械工程学报 ›› 2022, Vol. 58 ›› Issue (13): 147-165.doi: 10.3901/JME.2022.13.147

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热致轴承刚度与游隙变化特性及其对转子振动响应的影响

郝旭^1,2, 于长鑫¹, 刘军¹, 韩清凯³, 翟敬宇²

1. 瓦房店轴承集团有限责任公司大连 116300;
2. 大连理工大学机械工程学院大连 116024;
3. 东北大学机械工程学院沈阳 110819

收稿日期:2021-01-13 修回日期:2022-03-18 出版日期:2022-07-05 发布日期:2022-09-13
通讯作者: 翟敬宇(通信作者),男,1984年出生,博士,副教授,硕士研究生导师。主要研究方向为轴承设计与制造、轴承测试方法。E-mail:zhaijy@dlut.edu.cn
作者简介:郝旭,男,1988年出生,博士,工程师。主要研究方向为滚动轴承热力学与转子动力学。E-mail:haox@zwz.cn
基金资助:
国家重点研发计划资助项目（2018YFB2000300）。

Thermal-induced Bearing Stiffness and Clearance Variation Characteristics and its Effect on Vibration Response of Rotor System

HAO Xu^1,2, YU Changxin¹, LIU Jun¹, HAN Qingkai³, ZHAI Jingyu²

1. Wafangdian Bearing Group Corp, Dalian 116300;
2. Institute of Mechanical Engineering, Dalian University of Technology, Dalian 116024;
3. Institute of Mechanical Engineering, Northeastern University, Shenyang 110819

Received:2021-01-13 Revised:2022-03-18 Online:2022-07-05 Published:2022-09-13

摘要/Abstract

摘要： 滚动轴承广泛应用在转子系统中，其动态特性是决定转子系统动力学特性的关键因素之一。首先搭建了单盘两支点转子-轴承系统试验台，并对轴承热平衡过程中以及不同润滑油温度作用下转子系统不平衡振动特性进行了试验研究。其次，提出了一种基于转子振动响应的轴承刚度与游隙的辨识方法，获得了轴承在热平衡过程中以及不同润滑油温度作用下的刚度与游隙。最后，基于Lagrange法建立了转子-轴承系统动力学模型，将轴承刚度与游隙的辨识结果作为输入条件带入模型，分析了转速、不平衡量和润滑油温度对转子系统振动响应的影响以及轴承热平衡过程中系统的振动特性。研究成果为热效应下轴承性能参数识别以及转子系统的振动特性分析提供技术支持。

关键词: 转子-轴承系统, 动力学, 热平衡过程, 热油, 刚度与游隙辨识

Abstract: Rolling bearing is widely used in rotor system, and its dynamic characteristics are one of the key factors to determine the dynamic characteristics of rotor system. Firstly, a single disk two fulcrum rotor bearing system test-bed is built, and the unbalance vibration characteristics of the rotor system during the warm-up and under the action of different lubricating oil temperature are studied. Secondly, an identification method of bearing stiffness and clearance based on rotor vibration response is proposed, and the stiffness and clearance of the bearing during the warm-up and under the action of different lubricating oil temperature are obtained. Finally, the dynamic model of rotor bearing system is established based on Lagrange method. The identification results of bearing stiffness and clearance are taken into the model as input conditions. The effects of speed, unbalance and lubricating oil temperature on the vibration response of rotor system and the vibration characteristics of the system during the warm-up are analyzed. The research results provide technical support for bearing performance parameter identification under thermal effect and vibration characteristic analysis of rotor system.

Key words: rotor-bearing system, dynamics, thermal balance process, hot oil, stiffness and clearance identification

中图分类号:

TG156

郝旭, 于长鑫, 刘军, 韩清凯, 翟敬宇. 热致轴承刚度与游隙变化特性及其对转子振动响应的影响[J]. 机械工程学报, 2022, 58(13): 147-165.

HAO Xu, YU Changxin, LIU Jun, HAN Qingkai, ZHAI Jingyu. Thermal-induced Bearing Stiffness and Clearance Variation Characteristics and its Effect on Vibration Response of Rotor System[J]. Journal of Mechanical Engineering, 2022, 58(13): 147-165.

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热致轴承刚度与游隙变化特性及其对转子振动响应的影响

Thermal-induced Bearing Stiffness and Clearance Variation Characteristics and its Effect on Vibration Response of Rotor System

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