从目前发表的文章看，仅仅利用损伤结构的模态参数进行损伤识别的极少。

From article published at present, it is few only using damaged mode parameter of structure to identify the damage.

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由于结构频率测试容易测试并且有较高的测量精度，因此成为损伤识别中广泛应用的模态参数。

The variation of structural frequency before and after the damage is believed to be a most available and widely used modal parameter because of its easy testability and high measure precision.

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最后，通过一个三层框架和一个悬臂梁的算例证明：组合参数法能够非常精确地识别出结构的损伤位置和损伤程度。

Lastly, through a three-layer frame and a cantilever beam testify that the method can very accurately identify structural damage location and degree.

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