飞机升压式空气制冷循环系统仿真研究  

Simulation Study on Aircraft High-Pressure Air Refrigeration Cycle

作　　者：李俊杰[1] 

机构地区：[1]北京航空航天大学航空科学与工程学院,北京100083

出　　处：《电光与控制》2009年第6期93-96,共4页Electronics Optics & Control

摘　　要：针对飞机环境控制系统中的升压式空气制冷循环,在EASY5平台上进行了稳态和动态仿真研究。首先以某型飞机环境控制系统的升压式空气制冷循环为例,详细描述了系统的结构和工作原理,以及系统中各主要组件如压缩机、涡轮、换热器、阀门及PI控制器的数学模型及其在EASY5气体动力学应用库中的使用方法。然后利用软件自带模块组件搭建飞机升压式空气制冷循环的仿真系统,对系统使用牛顿迭代法进行稳态求解,使用BCS-Gear变步长积分法进行动态分析。应用结果表明,该系统精度较高,具有一定的实用性和推广价值,为EASY5在飞机环境控制领域的应用及国内飞机环境控制系统仿真的研究提供参考。Static and dynamic simulations of the high-pressure air refrigeration cycle in airplane Environmental Control System （ECS） were made based on EASY5 platform. First, taking the high-pressure air refrigeration cycle of a certain type of airplane as an example, we presented a detailed description to the system structure, working principle, mathematical models of the main subassemblies such as compressor, turbine, heat exchanger, valve and PI controller, and the application methods of them in Gas Dynamics Library of EASY5. Then, we built up the simulation system of high-pressure air refrigeration cycle by using the software＇s own module, with Newton-Raphson Method for static simulation and BCS-Gear method for dynamic analysis. The application results of the system indicated that the models have high-precisionand high practicability. It is helpful to the study of the domestic airplane environmental control system and the application of EASY5 in the ECS field.

关 键 词：飞机 环境控制 数学模型 仿真 

分 类 号：V271.4[航空宇航科学与技术—飞行器设计] TP391.9[自动化与计算机技术—计算机应用技术]