基于振动传递率方法的结构损伤识别试验研究

n experimental validation of structural damage detection using vibration transmissibility method is presented. Simulation experiments of various working conditions on a cantilever beam were conducted to mainly study its repeatability, sensitivity to damage and the damage location. The results of the experiments shows that the vibration transmissibility is independent of the external load, strongly sensitive to damage, and can identify the damage locations. This study indicates that vibration transmissibility can be used as a damage index to identify the approximate location and relative degree of damage under the condition of unknown external load accurate information, and it has a strong applicability in practical engineering application.