WS—9发动机试车性能计算分析

【作者】 周新宇；

【导师】 雷勇；

【作者基本信息】 西北工业大学 ， 航空宇航推进理论与工程， 2004， 硕士

【摘要】 本文根据航空发动机生产试车以及完善WS—9发动机计算机辅助测试(Computer Aided Testing CAT)系统的要求，深入研究了WS—9发动机稳态性能计算程序Q440，详细分析了程序的结构，分解出Q440程序中各个部件模块的热力学计算步骤和过程，运用部件法建立了WS—9发动机的稳态模型。首先，用所建立的发动机数学模型计算了发动机在设计点的各项性能，第二，根据发动机各部件的耦合特性参数计算得到发动机在非设计点状态下的各项稳态性能，第三，分别设定限制高压转子转速和低压转子转速逼近设计点条件下对应的参数，将计算得到的性能数据与设计点性能进行了比较，并将非设计点的计算结果与生产试车过程实测的性能数据进行对比，给出了该稳态模型计算结果与实际试车数据的误差。最后，从航空发动机的生产试车和航空发动机CAT研制的角度论述了该文的意义。更多还原

【Abstract】 In this paper, for the requirements of aeroengine testing and WS-9 aeroengine Computer Aided Testing(CAT) system, a steady-state numerical model of the WS-9 aeroengine is developed. It is discussed in detail that the structure of Q440, the WS-9 steady-state performance program. And it is clarified that the thermodynamic mumerical processes of the engine’s parts. Firstly, the performance is calculated at the design point of the WS-9 aeroengine by using the numerical model established. Secondly, after obtaining the performance coupling parameters, the steady-state performance of the non-designed points is caculated. Third, respectively make the limitation of rotate speed of the high pressure rotor and low pressure rotor equal to corresponding parameters of designed point, after the data calculated compared with those of designed point and actual testing of the manufactory, the error is obtained. At the end, the significance of this paper is discussed at the aspects of guidance and evaluation o f the aeroengine testing in manufactory, and the developing of the aeroengine CAT system.更多还原