飞行视景仿真系统研究与实现

Study and Realization of Real-time Flight Scene Simulation System Based on Irrlicht Engine

针对视景仿真系统开发费用大、周期长的缺陷,提出了一种利用开源的Irrlicht图形渲染引擎的开发方法。首先,基于飞机六自由度运动模型,提出了Irrlicht环境中飞行运动数学表示和C++语言描述方法;通过对Irrlicht的二次开发,构建了交互式飞行视景仿真系统的模块化功能结构,仿真了一个逼真的飞行三维视景。基于以上设计,通过键盘输入命令来改变飞行状态,从而驱动Irrlicht图形渲染引擎,最终实现了飞机运动的交互式飞行视景仿真系统。通过试验可以证明,飞行视景仿真系统具有良好的交互性和实时性,可扩展性强,开发周期短,系统建设简单,使用方便等优点。

In order to reduce the cost and time of the development of flight scene simulation, a method of development based on open source engine called Irrlicht is presented. Based on 6 - DOF motion model, the mathematic expression and C ＋ ＋ language description of flight process in Irrlicht Graphics Rendering Engine are described. Though further development of Irrlicht, a general modularized functional structure of Interactive Real - time Flight Simulation System is established, and a real -life 3 D flight scene is simulated. Incorporated with it, flight simulation data are translated to Irrlicht Engine through Keyboard input interface, then Irrlicht Engine is driven to achieve real - time visual flight simulation. The simulation results show that the flight simulation system is real - time, feasible and economic, and it can even meet the requirement of real time animation on generic PC.