双转子发动机整机高涡转子动应力测试方法  

Dynamic stress test method for high pressure turbine rotor ofthe dual-rotor aero-engine

作　　者：钱正纬 郭仁飞 马立强 张岩松 孙国玉 QIAN Zhengwei;GUO Renfei;MA Liqiang;ZHANG Yansong;SUN Guoyu(Shenyang Engine Research Institute,Aero Engine Corporation of China,Shenyang 110015,China)

机构地区：[1]中国航发沈阳发动机研究所,沈阳110015

出　　处：《航空动力学报》2024年第9期1-8,共8页Journal of Aerospace Power

摘　　要：设计了一种基于“遥测+长跨距引线导管”的双转子涡扇发动机整机高压涡轮转子动应力测试机构,并结合轴间遥测冷却仿真设计及定制化的高温应变计,在国内完成了双转子涡扇发动机整机高压涡轮转子动应力测试,获取了整机状态下全转速范围内高压涡轮转子叶片的动应力数据。测试结果表明:该设计的动应力测试机构及其冷却方法有效解决了双转子发动机整机高压涡轮转子测试信号引出困难、信号传输稳定性差等问题,定制化的高温应变计及其安装防护技术克服了整机高压涡轮叶片上极端高温、气流冲刷、空间狭小等恶劣安装条件。该测试方法可为相关测试任务提供重要借鉴。A high pressure turbine rotor dynamic stress test method of“telemetry+long span lead wire pipe”was designed for the dual-rotor turbofan aero-engine in the whole engine state.Combined with the simulation design of telemetry cooling amid the dual rotor and customized high temperature strain gauge,the dynamic stress test of the high pressure turbine rotor of the dual-rotor turbofan aero-engine was completed for the first time in China,and the dynamic test data of the high pressure turbine rotor blades in the full speed range and the whole engine state were obtained.The test results showed that the test mechanism and its cooling method designed can effectively solve the problems such as the difficult test signal extraction and poor signal transmission stability of the high pressure turbine rotor in the whole dualrotor engine,the customized high temperature strain gauge and its installation and protection technology can effectively overcome the harsh installation conditions of the high pressure turbine blades on the whole machine,such as extreme high temperature,airflow erosion and narrow space.The method proposed can provide an important reference for the relevant test tasks.

关 键 词：动应力测试 双转子涡扇发动机 整机状态 高压涡轮转子叶片 遥测技术 

分 类 号：V235.133[航空宇航科学与技术—航空宇航推进理论与工程]