飞机环境控制系统动态仿真

摘要

The dynamic research of aircraft environmental control system (ECS) is an important step in the advanced ECS design process. Based on the thermodynamics theory, mathematical models for the dynamic performance simulating of aircraft ECS were set up and an ECS simulation toolbox (ECS1.0) was created with MATLAB language. It consists of main component modules (ducts, valves, heat exchangers, compressor, turbine, etc.). An aircraft environmental control system computer model was developed to assist engineers with the design and development of ECS dynamic optimization. An example simulating an existing ECS was given which shows the satisfactory effects.%飞机环境控制系统动态研究是高性能环境控制系统设计的重要内容。以热动力学为理论基础，建立了飞机环境控制系统主要部件的动态特性数学模型，同时在MATLAB平台上进行二次开发，自行编制了环境控制系统动态仿真工具箱(ECS1.0)，并针对某先进战斗机环境控制系统的动态性能进行了研究，计算值与实验数据吻合较好。