Comparative Studies on Damage Detection Based on Dynamic Response of a Beam Subjecting to Moving Load

摘要：

　　In this paper,the feasibility and sensitivity of damage detection based on dynamic responses of a simply supported beam were examined theoretically and numerically,which were the displacement,velocity and acceleration histories at mid-span on a beam under the moving load.First,the theoretic background of a damage beam vibration subjecting to moving load was briefly described.And then a fimite element method was used to calculate the responses of the beam.Using wavelet transform of the dynamic responses,the damage could be identified.Case studies showed that the velocity response was sensitive to the damage and the simulations illustrated the better quality of damage detection by velocity than the ones by displacement and acceleration.

关键词： damage detection beam dynamic moving load wavelet transform

作者: ZHANG Weiwei MA Hongwei

作者单位: Department of Mechanics, Taiyuan University of Science and Technology, Taiyuan, China College of Science and Engineering, Jinan University, Guangzhou, China

会议类型: 国际会议

会议名称: 2nd International Conference on Materials Engineering and Automatic Control (第二届材料工程与自动化控制国际会议)(ICMEAC2013)

会议地点: 济南

会议语种:英文

页码: 925-930

在线出版日期: 2013-05-18（万方平台首次上网日期，不代表论文的发表时间）