本文为弹道计算程序包的编制提供了通用性的发动机系统工作方程。在制导研制,分析等工作中,火箭的弹道计算是必不可少的环节;而火箭的推力与力矩方程往往因发动机的组合形式与发动机的个数的不同而有很大差别。这就给弹道程序的编制带来很多麻烦。为了能有更加方便的弹道计算通用程序包,首先必须有适合于各种组合发动机使用的通用组合发 This paper provides a general equation of the engine system for the preparation of ballistic calculation package. In the guidance of research, analysis and other work, the rocket ballistic calculation is an essential part of the rocket thrust and torque equations often due to the combination of the engine and the number of different engines are very different. This brings a lot of trouble to the preparation of ballistic procedures. In order to have a more convenient ballistic calculation of generic packages, first of all there must be suitable for a variety of combinations of general-purpose engine to use the hair