Combined with the graph correlating the first resonance frequency with driving point location, the method localizes the crack by monitoring a jump in the graph.

• 结合裂纹梁第一阶谐振频率与驱动点位置关系曲线，利用曲线上出现的突变点，准确地识别了梁的损伤状态和裂纹损伤位置。