重庆理工大学学报（自然科学版）2017，Vol.31Issue(9)：8-14,7.DOI:10.3969/j.issn.1674-8425(z).2017.09.002
应用模态应变能原理的机械弹性车轮损伤识别
Damage Identification for Mechanical Elastic Wheel Based on the Theory of Modal Strain Energy
摘要
Abstract
Wheel damage identification is very important for the safety of the mechanical elastic wheel.According to the working principle and structure characteristics,a nonlinear finite element model of the wheel was established.The natural frequency of the wheel without damage are calculated by using the finite element modal analysis method;The modal test was used to verify the accuracy of the model.The finite element analysis and test were carried out to analyze the dangerous zone of the elastic ring.The stiffness degradation model was used to simulate the local damage of the elastic ring,and the different position and the damage state of the elastic ring was identified by using the element set damage variable.The research results showed that the damage inside the mechanical elastic wheel can be identified based on the theory of modal strain energy.Meanwhile,this method was accurate and effective,which provided reference for the health condition detection and fault diagnosis of the wheel.关键词
模态应变能/机械弹性车轮/损伤识别/模态Key words
modal strain energy/mechanical elastic wheel/damage identification/modal分类
交通工程引用本文复制引用
王仁亮,赵又群..应用模态应变能原理的机械弹性车轮损伤识别[J].重庆理工大学学报（自然科学版）,2017,31(9):8-14,7.基金项目
国家自然科学基金资助项目(11672127) （11672127）
总装备部探索研究重大资助项目(NHA13002) （NHA13002）
中央高校基本科研业务费专项资金资助项目(NP2016412) （NP2016412）
