Hereby, the change ratio of the first order mode shape is presented as the indicator for structure damage detection.
提出以第一阶振型改变率作为结构损伤识别的标识量。
Because of effect of sensor Numbers and test noise, detectability and recognition capability are restricted in structure damage detection.
在结构的损伤检测中，由于传感器数目、测试噪声等因素，限制了结构损伤检测与识别的能力。
The hidden trouble of structure can be detected in time, and accident can be avoided by the damage detection and diagnosis.
通过对结构进行损伤检测与诊断可以及时发现结构中存在的安全隐患，避免重大事故的发生。
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