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利用小波分析多分辨率的特点对结构损伤进行在线检测,判定结构损伤位置。在阐述了土木工程结构健康监测系统的组成、监测内容模块的功能及其特点和小波分析进行损伤识别的原理以及结构损伤的多尺度分析的基础上,通过对单层混凝土结构实验台的加速度信号进行小波分析,得到结构损伤的时刻,通过研究信号小波变换的尺度函数确定了损伤的位置,试验表明,该方法具有一定的实用价值。
Using wavelet analysis of multi-resolution characteristics of structural damage on-line testing to determine the location of structural damage. On the basis of expatiating the composition of the structure monitoring system of civil engineering structure, the function and characteristics of the monitoring module, the principle of damage identification by wavelet analysis and the multi-scale analysis of structural damage, the acceleration signals Wavelet analysis was used to obtain the moment of structural damage. The damage location was determined by studying the scale function of signal wavelet transform. Experimental results show that this method has some practical value.