结构损伤诊断不确定性方法研究进展

A review of nondeterministic methods for structural damage diagnosis

结构损伤诊断方法经历了由确定性方法到不确定性方法的发展过程。相对于确定性方法,损伤诊断不确定性方法能更有效地考虑和应对损伤诊断过程中的不确定性干扰问题,因此已成为当前结构损伤诊断领域的研究热点。首先回顾结构损伤诊断确定性方法的研究成果和给出确定性方法面临的挑战;在此基础上,主要介绍基于概率统计和基于数据融合的两类损伤诊断不确定性方法的研究进展,并分析各种方法的优点和不足;最后阐述当前结构损伤诊断面临的挑战与亟待解决的问题,并对其发展方向进行展望。

The structural damage diagnosis methods are developing from deterministic methods to nondeterministic ones. Compared with the deterministic methods, the nondetermlnistic methods for structural damage diagnosis can consider and deal with uncertainties in the process of structural damage diagnosis more effectively, so they become the study hots in the field of structural damage diagnosis. Here, firstly, the research achievements with deterministic structural damage diagnosis methods were reviewed and the faced challenges for deterministic methods were presented. Then, the study advances of two kinds of nondeterministic methods for structural damage diagnosis, based on probability statistics and data fusion, respectively were reviewed. The advantages and disadvantages of the two kinds of methods were analyzed. Finally, the challenges and problems for the current studies on structural damage diagnosis were discussed, and the future study trend of structural damage diagnosis was forecasted.