航空发动机推力的测量和确定方法

MEASUREMENT AND DETERMINATION OF AEROENGINE THRUST

从推力的定义和表达式及其导出的条件出发，讨论了航空发动机地面与飞行状态下在各类试验设备上推力的确定方法和程序以及必须进行的发动机部件与模型试验、整机地面试验和模拟高空试验乃至飞行试验，并分析了模拟高空试验在正确确定飞行推力中的重要作用。

It is difficult to measure the flight thrust of Aeroengine directly.It is determined now by calculation with mathmatical relationships of the flight thrust to the physical quantities which can be measured directly.According to the definition and the expression of the thrust,as well as the conditions derived from them,a method of aeroengine thrust determination and its program are provided on the basis of engine part tests,model tests,engine ground test,altitude-simutation tests,and flight tests.At the same time,the important function of the altitude-simulation facility is also analyzed in respect of correct flight thrust determination.