基于Matlab的某型固定翼飞行器飞行仿真系统开发  

Development of Fixed Wing Aircraft Flight Simulation System Based on Matlab

作　　者：李超[1] 王江云[1] 韩亮[1] 

机构地区：[1]北京航空航天大学自动化科学与电气工程学院,北京100191

出　　处：《系统仿真学报》2013年第8期1772-1777,共6页Journal of System Simulation

摘　　要：按照飞行模拟器的要求,建立了飞行仿真系统模型,包括六自由度全量运动方程模块、气动参数模块、发动机模块、起落架模块、环境模块、机体轴合外力/力矩模块等。该系统能够根据驾驶杆的输入,响应飞机当前的状态。用死区定值法解决了六自由度方程奇异点的问题。设计了基于遗传算法的配平方法,使初始飞行状态更接近平衡点。在Simulink环境下实现各模块的功能,进行定常直线、水平盘旋、翻筋斗等仿真实验。结果表明模型的初始状态接近平衡点,计算过程稳定,克服了飞行动力学仿真的奇异值问题,能够真实地反映飞机的实际特性。According to the requirements of flight simulator,the flight simulation system was constructed.The system includes the module of six degree freedom equation,aerodynamic coefficient,the engine,the landing gear,environment,force and moment on body axis,and so on.The system could display the current state of the aircraft according to the input of joystick.The dead zone setting method was used to solve the problem of the singular point.The trim method of genetic algorithm made the initial flight state closer to the equilibrium point.The function of each module was then programmed on the development environment of Simulink.Finally,the constant linear,hover,tumbling were simulated based on the trim point.The result shows that the initial states of simulation are closer to the equilibrium point,the calculation is stable,which overcomes the singularity problems of flight dynamics simulation,and the system can reflect the aircraft real characteristics.

关 键 词：SIMULINK 飞行仿真 死区定值法 配平 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]