【摘要】 本文根据损伤局部化的概念,给出了结构损伤检测的应变能方法,并建立了相应的结构损伤判据.只要知道损伤前和损伤后结构的振型参数,就可以确定出结构的损伤位置,因而具有在线检测的可能性,并且简单易行.文中对一个简支梁进行了模拟计算,证实了本方法的可行性与应用性.更多还原

【Abstract】 Based on the concept of damage localization, the strain energy method ofstructural damage identification is introduced and corresponding structuraldamage criterion is established in the paper. When the vibration modal pa-rameters of the structure before and after damage are determined, the da-mage in a structure can be located by the method. The method is simple andcan be used in the on-line structural damage detection. The numerical resultsof a simple supported beam have shown that the strain energy method ofstructural damage identification is feasible and applicable.更多还原