用于固体火箭发动机衬层固化过程监测的超声缓冲杆  

Ultrasonic Buffer Rod for Cure Process Monitoring of Solid Rocket Engine Liner

作　　者：杨亚军[1] 王召巴[1] 

机构地区：[1]中北大学电子测试技术国家重点实验室,山西太原030051

出　　处：《高分子材料科学与工程》2013年第11期101-104,108,共5页Polymer Materials Science & Engineering

基　　金：山西省科技攻关项目(20110321029);山西省青年科技研究基金(20120210115)

摘　　要：针对固体火箭发动机衬层固化过程普通超声探头监测要求,通过理论和试验研究了不同材料、不同规格超声缓冲杆的特征回波、尾随波以及信噪比,并对传热过程进行仿真,计算了缓冲杆的长度。结果表明,利用聚醚醚酮(PEEK)缓冲杆进行衬层固化过程超声监测,特征回波能量大、尾随波能量小、信噪比高,适于固体火箭发动机衬层固化过程实时监测。To meet the needs of monitoring the curing process of solid rocket engine liner by common ultrasonic probe, the signal-noise-ratio, characteristic echo and following echo for different materials and specifications of ultrasonic buffer rods were studied and the heat transfer process was simulated to calculate the length of buffer rod. The results show that monitoring curing process of the liner using polyetheretherketone（PEEK） buffer rod has merits of bigger characteristic echo, smaller following echo and higher signal-noise-ratio, which is suitable for real-time monitoring the curing process of solid rocket engine.

关 键 词：固体火箭发动机 衬层 超声监测 缓冲杆 

分 类 号：TB383[一般工业技术—材料科学与工程]