Abstract:An approach to detect structural damage using auto correlation function is proposed. The normalization of the auto correlation function of the acceleration response at time zero is theoretically proved only depended on the modal parameters of the structure, which is used to get the damage index to locate the damage. The feasibility and the effectiveness of the proposed method are verified by damage detection experiments of the fastener loosening of aircraft stiffened panel under white noise excitation. The results of the damage detection experiments also show that the proposed method, which only the acceleration response is needed, is suitable for real time detection of the fastener loosening.
杨智春;张慕宇;王乐. 飞机加筋壁板紧固件松脱损伤检测的自相关分析方法[J]. , 2011, 30(11): 13-16.
Yang Zhi-chun;Zhang Mu-yu;Wang Le. Damage detection of fastener loosening of aircraft stiffened panel by auto correlation analysis. , 2011, 30(11): 13-16.