摘要
引入曲率模态分析方法,以某轿车后桥为研究对象,通过试验模态分析获得损伤前后结构模态参数,计算曲率模态,选取平均曲率模态绝对差作为指标,对轿车后桥进行损伤识别.结果表明,该方法对结构局部变化敏感,可以识别损伤位置及损伤程度,为车辆结构件损伤识别提供了一种可行的研究方法.
Curvature mode theory was introduced to the damage identification of a rear axle of a car.The modal test analysis of rear axle was done.Results shows that the change of curvature mode shape has an obvious effect on identifing the local damage.The study results provide a practicable research method for structure damage identification of automobile components.
出处
《同济大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2011年第8期1208-1211,共4页
Journal of Tongji University:Natural Science
关键词
曲率模态
损伤识别
模态分析
轿车后桥
curvature mode
damage identification
modal analysis
rear axle
