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  

Research of the Secondary Flow and Vacuum Impact on the Thrust Measurement

作　　者：侯敏杰[1] 刘志友[2] 文刚[3] 

机构地区：[1]西北工业大学动力与能源学院,陕西西安710072 [2]南京航空航天大学能源与动力学院,江苏南京210016 [3]中国燃气涡轮研究院,四川江油621703

出　　处：《航空动力学报》2005年第3期384-388,共5页Journal of Aerospace Power

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。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.

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 

分 类 号：V231[航空宇航科学与技术—航空宇航推进理论与工程]