一种流量可调燃气发生器压强控制系统建模及其半实物仿真  

Modeling and Semi-physical Simulation on Pressure Control System for Flow Adjustable Gas Generator

作　　者：刘源翔[1] 聂聆聪 姚晓先[1] 宋晓东[1] 

机构地区：[1]北京理工大学,北京100081 [2]中国航天科工集团第31所,北京100074

出　　处：《弹箭与制导学报》2014年第5期135-137,143,共4页Journal of Projectiles,Rockets,Missiles and Guidance

摘　　要：为了改进燃气发生器流量控制的精度,研究了一种燃气发生器的压强控制系统。建立了燃气发生器与气动执行机构的线性化数学模型,分析了燃气发生器压强控制系统的特点,并通过半实物仿真系统对压强控制系统进行了仿真验证,获得了燃气发生器内压强变化曲线。实验表明,压强控制系统是一个变化缓慢系统,并且其参数具有时变性。Abstract： In order to improve the accuracy of gas generator flow regulation for solid fuel ramjet, a pressure control system for gas generator was researched. Mathematical models of gas generator and air serve system were built, and the characteristics of pressure control system for gas generator were analyzed. The flow control system was simulated and validated by tsemi-physical simulation system, and the curve of the pressure changing in the gas generator was achieved. The result of the experiment shows that the pressure control system is one which changes slowly, and its parameters are time-variation. Keywords ： flow control; mathematical model ; semi-physical simulation ; time-variation

关 键 词：流量控制 数学模型 半实物仿真 时变性 

分 类 号：V435[航空宇航科学与技术—航空宇航推进理论与工程]