液体火箭发动机一种通用模块化仿真方法  

Investigation of a general module simulation method for liquid propellant rocket engines

作　　者：魏鹏飞[1] 吴建军[1] 刘洪刚[1] 陈启智[1] 

机构地区：[1]国防科技大学航天与材料工程学院,湖南长沙410073

出　　处：《推进技术》2005年第2期147-150,共4页Journal of Propulsion Technology

基　　金：国家自然科学基金资助项目 (50276068)。

摘　　要：为了研制一种较为通用的液体火箭发动机工作过程的仿真软件, 依据模块化建模思想, 建立发动机各组件的Simulink仿真模块。根据发动机系统中各组件之间的参数信号传递关系, 连接各模块的相应输入输出端口即形成整个发动机系统的仿真模型。对某型发动机的起动过程进行仿真计算, 结果表明这种模块化的建模仿真方法易操作, 较通用。According to module modeling requirements, the components and the parts in a liquid propellant rocket engine (LRE) were classified firstly. Then, the simulation blocks of LRE components and parts based on MATLAB Simulink were constructed, which can be used to develop a universal simulation software for LRE dynamic characteristics study. Based on the parameter signal transfer relations between LRE components and parts, the LRE simulation model can be set up by connecting the corresponding LRE component input and output ports. The startup process of a certain LRE was simulated. The results show that this simulation method is effective, easier to operate, and more general.

关 键 词：液体推进剂火箭发动机 模块化设计 仿真模型 数值仿真 

分 类 号：V434.1[航空宇航科学与技术—航空宇航推进理论与工程]