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高空舱内次流与真空度对发动机台架测量推力影响的分析
引用本文:侯敏杰,刘志友,文刚. 高空舱内次流与真空度对发动机台架测量推力影响的分析[J]. 航空动力学报, 2005, 20(3): 384-388
作者姓名:侯敏杰  刘志友  文刚
作者单位:1.西北工业大学动力与能源学院,陕西西安710072
摘    要:通过高空舱内冷却空气流动与高空舱内外压差对发动机测力系统作用的分析,阐明了高空舱内次流和真空度对发动机台架测量推力影响的作用机理和本质差异,并从理论上论证了次流作用和真空度作用对测量推力影响的试验确定方法。 

关 键 词:航空、航天推进系统   高空台   航空发动机   发动机推力   真空度作用力   次流作用力
文章编号:1000-8055(2005)03-0384-05
收稿时间:2004-05-16
修稿时间:2004-05-16

Research of the Secondary Flow and Vacuum Impact on the Thrust Measurement
HOU Min-jie,LIU Zhi-you and WEN Gang. Research of the Secondary Flow and Vacuum Impact on the Thrust Measurement[J]. Journal of Aerospace Power, 2005, 20(3): 384-388
Authors:HOU Min-jie  LIU Zhi-you  WEN Gang
Affiliation:1.School of Power and Energy,Northwestern Polytechnical University,Xi’an710072,China2.College of Energy and Power Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing210016,China3.China Gas Turbine Establishment,Jiangyou621703,China
Abstract:Through the analysis of the impact on engine thrust measurement system of both chamber cooling air flow and vacuum caused by the chamber internal and external pressure difference,both their action mechanisms and their essential distinction were clarified.Moreover,the test method for determining their impact on the engine thrust measurement system of the altitude simulated test facility was theoretically reasoned.
Keywords:aerospace propulsion system  altitude test facility  aero-engine  engine thrust  pressure difference  cooling air flow
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