摘要
针对航空发动机进气流场压力畸变测试需求,基于耙臂的振动抑制,首次采用浮动内环连接结构,研制了一种发动机进气畸变测试耙。强度计算结果表明,所设计的进气畸变测试耙的动、静强度均有足够的储备裕度。测频试验和动应力测试试验结果表明,内环与耙臂连接结构对进气畸变测试耙整体振动抑制效果明显。进气畸变测试耙工程应用效果良好,可满足发动机进发匹配以及进气逼喘试验的需求。
Based on the pressure distortion measurement of aero-engine inlet,a float connection structure was designed and the pressure distortion rake of aero-engine was investigated based on the vibration sup⁃pression.The results of structural strength calculation show that the rake meet the measurement require⁃ments.The results of frequency measurement and dynamic stress measurement show that the float connec⁃tion structure is conducive to the vibration suppression of distortion rake.The engineering application effect of rake was ideal,which can satisfy the requirements of engine/inlet matching and surge test.
作者
张校东
万媛媛
薛秀生
王晓良
刘忠奎
ZHANG Xiao-dong;WAN Yuan-yuan;XU Xiu-sheng;WANG Xiao-liang;LIU Zhong-kui(AECC Shenyang Engine Research Institute,Shenyang 110015,China;Chongqing Institute of Aerospace Propulsion Technology,Chongqing 401120,China)
出处
《燃气涡轮试验与研究》
2022年第1期58-62,共5页
Gas Turbine Experiment and Research
关键词
航空发动机
进气畸变耙
振动抑制
浮动连接
强度计算
测频试验
动应力测试
aero-engine
intake distortion rake
vibration suppression
float connection
strength calculation
frequency measurement
dynamic stress measurement
