因此，利用一阶应变振型在损伤前后的相对变化可以对框架结构节点的损伤进行诊断。

So the relative changes of first order strain mode before and after damage can be used to diagnosis the damage of frame structure joints.

youdao

因此，利用一阶应变振型在损伤前后的相对变化可以对框架结构节点的损伤进行诊断。

So the relative changes of first order strain mode before and after damage can be used to diagnosis the damage of frame structure joints.

youdao