结构损伤的动力学识别方法研究

英文篇名：STUDY ON DYNAMIC DETECTION METHODS OF DAMAGED STRUCTURES
中文刊名：低温建筑技术
英文刊名：Low Temperature Architecture Technology
作者：汤海燕
英文作者：TANG Hai-yan(College of Civil Engineering ; Nanjing University of Technology ; Nanjiang 210009 ; China)
中文关键词：损伤识别 ; 柔度差 ; 曲率模态 ; 柔度曲率
英文关键词：damage detection ; fiexibility differecnce ; curvature model ; flexibility curvature
出版日期：2005-02-28
机构：南京工业大学土木工程学院南京210009
年：2005
期：01
出版单位：低温建筑技术

摘要

针对桥梁结构的安全监测和评估问题,研究了 3种结构损伤动力学检测方法,分析了柔度差方法和曲率模态法应用于损伤检测的局限性。提出柔度曲率的概念,只需结构前 2或 3阶振型和频率数据即可准确识别出结构损伤位置,并用有限元仿真实验结果验证了该方法的可行性和正确性。
In this paper,three damage detection methods for damaged structures were investigated to improve safety monitoring and evaluation of beam bridges.The flexibility curvature was proposed that only requires the mode and frequency data of the first 2 or 3 modes.The feasibility and validity of this method were verified through finite element results.

引文

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