We go deep into discussing the studies on structural damage detection based on modal strain energy, and propose a new damage detection index based on the change of modal strain energy ratio.
在此基础上对基于模态应变能的损伤识别方法进行了深入探讨，并提出了基于模态应变能比变化率的损伤识别新指标。
Based on element local frequency change ratio method and element modal strain energy ratio method, numerical study is carried on to detect the damage of the bridge.
利用单元局部频率变化率法和单元模态应变能比法，对连续梁桥进行了损伤诊断的数值模拟研究。
A new model_based method for structural damage detection, which is based on the theory of dissipation ratio of modal strain energy, is put forward.
本文提出了基于模态应变能耗散率理论的一种新的结构损伤识别方法。
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