基于结构测试的损伤诊断方法研究

从结构测试的角度论述了结构损伤诊断方法．该方法以结构测试为基础，将测试数据与模型分析结果进行综合分析比较，从中得到结构刚度等参数变化的信息，实现结构的损伤判别与定位定量分析．按测试方式的不同可分为基于静力测试的损伤诊断法、基于振动测试的损伤诊断法以及基于振动和静力综合测试的损伤诊断法．其中基于振动测试的损伤诊断法可进一步分为直接的系统识别方法、损伤指标法和有限元模型修正法．指出了损伤诊断方法的研究现况及存在问题，对今后研究的方向作了展望．

Structural damage identification based on structural testing

The damage identification method is discussed from the structural testing viewpoint. Applying structural testing as its basis, the method makes a comprehensive comparison between test data and model analytical results, so as to acquire the variation of parameters such as structural stiffness, etc. and detect the damage in structures. According to the differences in the test instrumentality, the method can be classified as: the damage diagnosis method based on static testing; the damage diagnosis method based on vibration testing; and the damage diagnosis method based on both static and vibration testing. The damage diagnosis method based on vibration testing can be further classified as a direct system identification method, a damage index method and a finite element model modification method. The research status and problems of the method are presented. Recommendations for future research are provided.