基于数模联动的滚动轴承性能退化评估  

Degradation Assessment of Rolling Bearing Performance Based on Model-data-fusion

作　　者：李栋国 刘韬[1,2] 李洁松 王振亚 王贵勇 LI Dongguo;LIU Tao;LI Jiesong;WANG Zhenya;WANG Guiyong(Faculty of Mechanical and Electrical Engineering,Kunming University of Science and Technology,Kunming 650500,China;Key Laboratory for Advanced Equipment Intelligent Manufacturing Technology of Yunnan Province,Yunnan Provincial Department of Science and Technology,Kunming 650500,China;Inner Mongolia First Machinery Group Co.,Baotou 014000,Neimenggu,China)

机构地区：[1]昆明理工大学机电工程学院,昆明650500 [2]云南省科技厅云南省先进装备智能制造技术重点实验室,昆明650500 [3]内蒙古第一机械集团股份有限公司,内蒙古包头014000

出　　处：《噪声与振动控制》2025年第2期105-111,共7页Noise and Vibration Control

基　　金：国家自然科学基金资助项目(52065030);云南省重大科技专项计划资助项目(202202AC080008)。

摘　　要：滚动轴承点蚀故障失效过程中,对故障缺陷尺寸的估计是轴承性能退化评估的关键之一。为解决轴承局部缺陷退化尺寸难以定量估计问题,提出一种基于数模联动的滚动轴承性能评估方法。首先,基于非线性Hertz接触理论与时变位移激励函数,建立弹流润滑影响下的深沟球轴承2自由度动力学模型。其次,修正动力学模型仿真数据和真实数据幅值偏差。最后提出滚动轴承局部缺陷退化故障尺寸评估(Fault Size Evaluate,FSE)算法,估计滚动轴承全寿命退化过程中的故障尺寸,并通过ABLT-1Z轴承寿命强化试验机的实验数据进行验证。实验结果表明本文提出的数模联动方法能够量化轴承局部缺陷尺寸的退化规律,评估滚动轴承性能退化过程。In the process of pitting fault failure of rolling bearings,the estimation of fault defect size is the key for bearing performance degradation assessment.This paper proposed a rolling bearing performance evaluation method based on model-data-fusion,to solve the difficulty to quantitatively estimate the degradation size of local defect.Firstly,based on the Hertz's nonlinear contact theory and time-varying displacement excitation function,a 2-DOF dynamic model of deep groove ball bearing under the influence of elasto-hydrodynamic lubrication was established.Secondly,the amplitude deviation between the simulated data and the real data of the dynamic model was corrected.Finally,the Fault Size Evaluation(FSE)algorithm was proposed to estimate the fault size during the full life degradation of rolling bearings,and verified by the experimental data of ABLT-1Z bearing life strengthening test machine.The experimental results show that the proposed model-data-fusion method can quantify the degradation rule of local defect size of bearings and evaluate the performance degradation process of rolling bearings.

关 键 词：故障诊断 动力学建模 数模联动 滚动轴承 HERTZ接触 FSE算法 

分 类 号：TH113[机械工程—机械设计及理论]