RLV热防护系统健康监测研究进展

Development of Health Monitoring Technology for Thermal Protection Systems

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.