计算机环境下的实时飞行仿真系统的构建

摘要

构建计算机环境下的实时飞行仿真系统，实现飞行仿真。首先建立了非线性动力学方程、起落架的数学模型，设计了发动机、气动系数、风和大气环境模型，然后在Simulink环境下编程实现各模块的功能，采用了一种有效的数据预处理和函数生成方法保证了仿真的实时性，最后在完整仿真模型的基础上进行了滑跑、起飞、巡航、降落等仿真实验。仿真实验结果表明模型可用，仿真系统趋近完善，并能反映飞机的实际动态特性。%We constructed of the computer environment for a real-time flight flight simulation. The nonlinear dynamics equation and the mathematical model and the models for the engine, the aerodynamic coefficients and the wind and simulation system, and completed of the landing gear are established, atmospheric environment are built. The function of each module is then programmed on the development environment of Simulink and an effective method for data pre-processing and function generation are used to ensure that it is a real-time simulation. Finally, the taxi, takeoff, cruising and landing are simulated based on the integrity of the simulation model. The simulation result shows that the model is effective and can reflect the dynamic characteristics of the actual aircraft.