梁内缺陷识别的反分析方法

Identification of Defect in a Beam by Solving Inveres Problem

对梁的缺陷识别问题进行了研究。利用阻尼最小二乘法建立了一种识别梁缺陷的方法 ,该方法根据梁横向振动的固有频率变化识别缺陷区域的大小、位置和缺陷区域内的一些物性参数。

Identification of parameters indicating the location, size and property of a defect in a beam is studied. Based on the least square method and inverse analysis, an iterative formula is set up according to the chang of a nataral frequency of the beam due to its defect.A simulation result shows that the method is effective.