摘要
通过在线监测结构响应,实时掌握结构的健康状况,并在此基础上对可能发生的损伤和故障进行预报,以便能及时采取措施,保证复合材料结构的服役安全。综述了几种重要的结构健康监测方法的研究进展、应用场合与发展历程,包括:全局状态感知技术(光纤传感监测法)、全局损伤诊断技术(波传播损伤诊断法)、局部损伤诊断方法(机电阻抗监测法、真空比较监测法、智能涂层法等),讨论了复合材料结构健康监测传感器的安装方法。结合各种技术的发展历程和优缺点展望了航空航天复合材料结构健康监测技术的发展趋势。
Advanced composite materials（ACM） have become an important material of the aerospace engineering.Due to their complex nonlinear coupling factors, it＇s very difficult to analyze the strength and failure modes of aerospace-compositestructures. Therefore, it＇s necessary to monitor, diagnose, evaluate and predict the structural health condition of aerospace composite structures. Information obtained through real-time monitoring will be used to determine the health condition of structures and the response to external loads, and further predict possible defects and failures that may occur in the future so that actions can be taken at the appropriate period of time to ensure the safety and service of composite structures to achieve maximum economic benefits. The state of structural health monitoring technology for composite is reviewed in this paper, including global condition perception technology（optical fiber sensing monitoring method）, global damage detection technology（guide wave propagation damage detection method）, local damage detection method（impedance method, vacuum monitoring method and intelligent recoating method）, and setup method of sensor network is discussed.The development trend and the challenges of structural health monitoring of aerospace composite are also discussed.
出处
《航空制造技术》
2016年第15期92-102,109,共12页
Aeronautical Manufacturing Technology
基金
国家自然科学基金项目(91016024)
教育部新世纪优秀人才支持计划(NCET-11-0055)
重大项目培育科研专题(DUT13ZD(G)06)
关键词
航空航天结构
复合材料
结构健康监测
光纤
导波
机电阻抗
真空比较监测
智能涂层
Aerospace structure
Composite
Structural health monitoring
Optical fiber
Guide wave
Impedance
Vacuum monitoring
Intelligent recoating
