用AR模型判断结构损伤的方法

A method of structural damage abnormally with AR model

利用AR模型的自回归系数构造距离判别函数、定义结构损伤特征参数,并引入统计分析方法,对结 构的异常状态诊断及损伤定位．数值实验表明,与基于模态频率变化的方法相比,该方法具有更高的损伤 识别能力．

Using the AR model auto - regression coefficient to form function of distance - based identification, defining structural damaging diagnostic parameter and introducing statistic analytical method to identify abnormal structural state and lacate damage. Numeric experiments have shown that the method has a relative higher capacity of the damaging identification compare to those which bases on the variety of the model frequency.