Research And Design Of Flight Visual Simulation System

After the development of the new aircraft,supporting the development of a flight simulator adapted to the aircraft can greatly enhance the competitiveness of the aircraft in the domestic and international aviation market.Flight visual simulation system is an important subsystem of flight simulator,the role of the system is to provide the pilot virtual flight environment consists of terrain,forest,meteorology,airport etc.In this paper,the virtual three-dimensional terrain,virtual large-scale forest,virtual weather effects are studied.Based on these researches,a flight visual simulation system is designed and implemented.The following work has been done in the research and design process.1.The open source Ogre graphics rendering engine is analyzed.The engine architecture,engine plug-in mechanism,engine scene graph,engine rendering cycle are analyzed.2.The virtual 3D terrain is studied.The dynamic terrain scheduling algorithm is proposed to realize the dynamic loading of terrain.On this basis,the Lua script is used to define and register the terrain.3.The virtual large-scale forest is studied.Based on the traditional forest simulation method,a forest simulation method based on three-layer plant model is proposed.The experiment proves that the method has the advantages of low memory consumption and good rendering effect.4.The virtual weather effects is studied.First,the composition of the particle system is analyzed.The light rain,moderate rain,heavy rain,light snow,moderate snow,heavy snow effects are achived based on ParticleUniverse.5.The flight visual simulation system is designed and the airport is modeled.On the Visual Studio 2010 development platform,the flight visual simulation system was implemented with Ogre,PagedGeometry,Caelum,ParticleUniverse,Hydrax,Boost,Tinyxml and Lua.The flight scene simulation system designed in this paper can simulate the flight environment composed of terrain,forest,meteorology,airport and so on.The simulation result is realistic and the immersion is strong.