It was proved that frequency change square ratio was a parameter for damage location and damage degree in a structure.

结果表明，结构频率的平方变化比是损伤位置和损伤程度的函数。

youdao

It was proved that frequency change square ratio was a parameter for damage location and damage degree in a structure.

结果表明，结构频率的平方变化比是损伤位置和损伤程度的函数。

youdao