航空发动机在高空台上的H<SUB>0</SUB>/Ma<SUB>0</SUB>试验分析

刘志友; 郭荣伟; 侯敏杰; 田金虎

航空发动机在高空台上的H₀/Ma₀试验分析

1.
南京航空航天大学能源与动力学院, 南京 210016
2.
中国燃气涡轮研究院, 江油 621703

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出版历程
- 收稿日期: 2006-06-28
- 修回日期: 2007-04-10
- 刊出日期: 2007-07-28

Analysis of H=0 & Ma=0 test for aero-ngine at ATF

1.
College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
2.
China Gas Turbine Establishment, Jiangyou 621703, China

摘要

摘要: 分析了发动机高空台H₀/Ma₀试验时, 高空舱压力与标准大气压力不一致的产生原因, 以及由于发动机排气引射作用与高空舱内冷却流动造成的环境压力低于标准大气海平面静止空气压力对发动机H₀/Ma₀试验结果的影响机理。在此基础上, 提出了环境压力差异对发动机H₀/Ma₀试验结果影响的研究方案, 并用两型发动机在不同试车台上进行了H₀/Ma₀试验与研究性试验。结果表明, 70 kPa压力环境、0.99～1.02冲压比的高空台H₀/Ma₀试验的换算结果, 与标准大气海平面静止条件下的试验结果基本一致。
- 航空、航天推进系统 /
- 航空发动机 /
- 发动机试验 /
- 环境压力 /
- 高空台
Abstract: H=0 km & Ma=0 test was conducted for aero-engine at altitude simulated test facility(ATF).The reasons for the difference between altitude cell pressure and standard atmospheric pressure were analyzed.Moreover,the effects on the engine test of H=0 km & Ma=0 at a pressure difference between altitude cell and international standard atmosphere(ISA) sea level static(SLS),caused by exhaust gas ejection and cooling-air flow in altitude cell,were also studied.A scheme was thus put forward for the influence of ambient pressure change on the engine test results of H=0 km & Ma=0.Furthermore,several research tests were conducted in two or three test beds of H=0 km & Ma=0 using a turbojet engine and a turbofan engine.The test results show that,corrected results for engine test of H=0 km & Ma=0 at ATF,when ambient pressure is about 70 kPa and ram ratio is between 0.99 to 1.02,are consistent with those under standard atmosphere,sea level static.
- aerospace propulsion system /
- aero-engine /
- engine test /
- ambient pressure /
- altitude simulated test facility(ATF)

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参考文献(6)

[1]	侯敏杰,刘志友,文刚.高空舱内次流与真空度作用对发动机台架推力测量的影响研究[J].航空动力学报,2005,20(3):384-388.HOU Minjie,LIU Zhiyou,WEN Gang.Research of the action of the secondary flow and vacuum on the thrust measurement system[J].Journal of Aerospace Power,2005,20(3):384-388.
[2]	GJB 359涡喷涡扇发动机性能的湿度修正规范[M]//刘大响主编.试车环境对发动机性能的影响及修正方法.北京:航空工业出版社,1989.
[3]	GJB 378涡喷涡扇发动机性能的温度修正规范[M]//刘大响主编.试车环境对发动机性能的影响及修正方法.北京:航空工业出版社,1989.
[4]	焦天佑,郭昕.高空台对比试验校准与标定技术研究[J].燃气涡轮试验与研究,1997,10(1):1-7.
[5]	刘志友,侯敏杰,马前容.高度对航空发动机地面试验性能的影响[J].航空动力学报,2006,21(2):381-385.LIU Zhiyou,HOU Minjie,MA Qianrong.Research of altitude effect on aero-engine ground test performance[J].Journal of Aerospace Power,2006,21(2):381-385.
[6]	杜鹤龄.发动机性能换算所用的相似参数及其修正问题[M]//刘大响主编.试车环境对发动机性能的影响及修正方法.北京:航空工业出版社,1989.