基于超声导波的复合材料结构损伤监测研究  

Research on Damage Monitoring of Composite Structures Based on Ultrasonic Guided Waves

作　　者：白生宝[1] 肖迎春[1] 黄博[1] 田媛[1] BAI Sheng-bao;XIAO Ying-chun;HUANG Bo;TIAN Yuan(Aircraft Strength Research Institute of China,Xian 710065)

机构地区：[1]中国飞机强度研究所,西安710065

出　　处：《环境技术》2022年第2期74-78,共5页Environmental Technology

摘　　要：为及时识别复合材料结构在使用过程中的损伤,本文提出了一种基于超声导波的复合材料结构损伤实时监测方法。该方法基于超声导波和典型相关分析,将复合材料结构完好状况的基线信号和损伤信号之间的相关系数定义为损伤指数,以此来表征复合材料结构完好状态,并通过实验确定了损伤阈值,从而实现对复合材料结构损伤的监测。In order to identify the damage of composite structures in time,a real-time damage monitoring method of composite structures based on ultrasonic guided wave is proposed in this paper.Based on ultrasonic guided wave and canonical correlation analysis,the correlation coefficient between the reference signal and damage signal of the intact state of composite structure is defined as the damage index to characterize the intact state of composite structure,and the damage threshold is determined through experiments,so as to monitor the damage of composite structure.

关 键 词：超声导波 复合材料 损伤监测 损伤指数 

分 类 号：V214.8[航空宇航科学与技术—航空宇航推进理论与工程]