飞机座舱压力气动调节系统的建模与仿真  

Modeling and Simulation of Aircraft Cabin Pressure's Pneumatic Regulator System

作　　者：霍昱旭 李玉忍[1] 宋颖慧[1] 

机构地区：[1]西北工业大学自动化学院,陕西西安710129

出　　处：《计算机仿真》2014年第1期36-40,共5页Computer Simulation

摘　　要：在座舱压力调节控制优化问题的研究中,由于飞行中压力调节系统不稳定,造成座舱压力波动等现象。为解决上述问题,建立了一个参数修改方便、系统结构调整容易的高精度系统模型,根据气动式座舱压力控制系统的控制性能,对座舱压力控制器和排气活门等关键组成部分建立气动特征数学模型,并在MATLAB/Simulink上构建了座舱压力控制系统仿真模型,对气动式座舱压力调节系统模型的静态/动态性能进行了仿真和分析。结果表明,气动控制在一定范围内,能较好地满足座舱压力制度及余压制度的要求,具有良好的座舱压力控制能力。In the study about optimization problem of cabin pressure control, because that the pressure control system is unstable, resulting in some phenomena such as cabin pressure fluctuates. To solve the problems above, a high-precision cabin pressure control system simulation model with the advantages of operating the parameters and structural of system easily has been established. According to the control performance of the pneumatic cabin pressure control system, the paper mainly analysed the principe of key parts such as pressure controller and exhaust valve, based on MATLAB/Simulink established the simulation model of the cabin pressure control system, and accomplished the simulation and analysis about pneumatic cabin pressure regulating system model＇s static/dynamic performances. The results show that pneumatic control can achieve the cabin pressure and overbottom pressure＇ s requirement in a certain range, and the cabin pressure control system has a favorable control ability.

关 键 词：气动式 座舱 压力控制系统 

分 类 号：V411.8[航空宇航科学与技术—航空宇航推进理论与工程]