摘要
飞机结构损伤监测技术是确保其结构完整性、可靠性和安全性的关键技术。为了实现飞机大面积曲面结构的主动损伤监测,利用柔韧性良好的0-3型压电涂层复合材料和Lamb波传播距离远及对细微缺陷的高敏感性,基于CRIO(Compact RIO)平台和LabVIEW环境设计了结构损伤监测的软硬件系统。系统由激励探头、压电涂层传感器阵列、CRIO数据采集平台、Wi Fi无线传输网络、监测中心上位机及软件等部分组成,研制的压电涂层传感器能够较好地贴合于机翼等曲面结构,应用CRIO技术实现了测试设备的可重复配置与快速测试,无线数据传输能够克服大量传感器布置带来的布线复杂问题。将该系统应用于曲面铝板损伤监测模拟实验,验证了该系统测试信号的有效性和损伤定位结果的准确性。
Aircraft structural damage monitoring technology is one of the most important technologies to ensure its structural integrity,safety and reliability.Taking the advantages of the flexibility of the 0-3 piezoelectric paint composite material and the high sensitivity of Lamb wave to the subtle damage,an active structural damage monitoring system is designed based on CRIO platform and LabVIEW software to achieve the large-area damage detection of the curved aircraft structure.The system is composed of the actuated probe,the piezoelectric paint sensor array,CRIO data acquisition platform,WiFi wireless transmission network,monitoring center host computer,and the software system.The developed piezoelectric paint sensor can better fit to the curved structure surface such as wings.CRIO platform can quickly configurate the measurement instruments as well as the data acquisition process.Wireless data transmission can overcome the complexity of wire arrangements due to the numerous sensors.Experimental tests were performed to demonstrate the effectiveness of the proposed monitoring system,and the accuracy of the damage identification.
作者
沈意平
陈齐林
王送来
蒋帅
SHEN Yi-ping;CHEN Qi-lin;WANG Song-lai;JIANG Shuai(Hunan Provincial Key Laboratory of Health Maintenance for Mechanical Equipment,Hunan University of Science and Technology,Xiangtan 411201,China;College of Mechanical and Electrical Engineering,Central South University,Changsha 410083,China;Hunan Railway Vocational and Technical College,Zhuzhou 412001,China)
出处
《测控技术》
2020年第6期100-103,127,共5页
Measurement & Control Technology
基金
湖南省重点研发计划项目(2018GK2044)
湖南教育厅科学研究项目(18B567)
湖南省自然科学基金(2020JJ6029)。
