基于振动的结构损伤识别方法研究进展

A REVIEW OF VIBRATION-BASED STRUCTURAL DAMAGE IDENTIFICATION METHODS

对近几十年来基于振动的结构损伤识别方法进行了归纳和总结,重点阐述了无模型的损伤识别方法和损伤识别的模型修正法,对损伤识别的神经网络法、小波分析法和时域法等也作了一定程度的介绍。分析了各种方法的优点和不足之处,讨论了基于振动的损伤识别技术存在的主要问题,并对进一步的研究方向作了展望。

Structural damage detection methods using vibration parameters are reviewed here. The necessity and the urgency to conduct safety assessment, health monitoring and damage diagnosis are introduced. Damage identification techniques in recent years are classified and illuminated briefly. Methods based on model updating and techniques without finite element model are discussed particularly. Damage detection algorithms using time-domain identification procedure, wavelet transformation and neural network are also reviewed. The advantages and shortcomings of these damage identification methods are analyzed. Several key issues related to structural damage identification are emphasized and future study aspects are pointed out.