Structure modal parameter online identification was used to monitor the structural health as evidenced by changes in the vibration characteristics.
为了实现结构基于振动特性的健康监测，进行了在线模态参数识别。
Although modal flexibility on structure damage and discern has higher sensitivity, it still needs the structure mode parameter before damaging, which is not beneficial to practical application.
虽然利用模态柔度进行结构损伤识别具有较高的灵敏度，但是却要用到损伤前的结构模态参数，不利于实际应用。
In this paper, the progress of modal parameter identification method for structure system in the past twenty years is discussed, and typical achievements by these methods are briefly introduced.
对结构系统模态参数识别方法近十几年来的最新研究成果进行了综述和总结。分析了模态参数识别方法的发展趋势，并对其中的典型研究成果进行简要的介绍。
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