摘要
分析了热防护系统健康监测技术的现状和特点,比较分析了基于压电陶瓷的几种典型的健康监测技术。指出了对于嵌入式的压电传感器,基于能量和波的衰减建立的分析方法有效可行;针对贴片式压电陶瓷检测系统,介绍了基于模态分析的方法,指出了不足。总结了今后的发展方向。
Current status and characteristic of health monitoring technology of thermal protection system was analyzed. Several typical technologies based on the PZT were compared in this study. It was indicated that the analysis method based on the energy and attenuation was feasible and effective; the modal analysis method for the stick-on PZT diagnostic system was introduced, the shortage of method was pointed oat. The development direction was summed up.
出处
《宇航学报》
EI
CAS
CSCD
北大核心
2007年第1期1-8,共8页
Journal of Astronautics
基金
国家863项目资助(2005AA724031)
关键词
热防护系统(TPS)
结构健康监测
压电陶瓷
Thermal protection system （TPS）
Structure health monitoring
Piezoelectric ceramics
