Research And Implement Of Key Technology Of Flight Real Time Simulation

Along with the research and development of system simulation technique, the method and theory are applied to the research and development of key technologies of real time flight simulation, in the military situation simulation, simulation exercises, aircraft development, and missile guidance and in the field of civil aviation flight simulation training and route planning play great role. The mathematical model of flight simulation is derived, and the model can be realized by the simulation technology, which can save the cost of R & D and shorten the development cycle. In the increasing demand of flight simulation technology, flight simulation technology to meet the characteristics of real-time, realistic and economic.In order to meet the application requirements of real-time flight simulation technology, this paper will use the method of computer simulation, real-time simulation of flight is related to the key technology of research and analysis, put forward flight control model of key technology, route planning and design key technology and missile trajectory and special effects simulation key technology. The key technologies constitute the core of real time flight simulation technology. The main research contents are as follows:(1) The main body of flight simulation is aircraft, we introduce the principle of motion based on the traditional six degree of freedom flight modeling method, and put forward a model of six degree of freedom based on flight dynamics. To aircraft in flight force analysis to establish the mathematical model to calculate the flight parameters of aircraft, and in the plane of maximum velocity and acceleration of the aircraft is smooth, and aircraft were calculated according to the smoothing parameters of six degree of freedom attitude, reaching a steady, realistic aircraft flight control effect.(2) Taking into account the flight motion of the aircraft is carried out by the route planning, while the different scenarios to fly to meet the different needs of real-time, economic and security. In this paper, aiming at the above problems, the design and implementation of the equal angle line, the great circle route and mixed route. Equal angle line design using differential triangle calculation heading angle, in the great circle route proposed a planning method based on vector rotation, the line segment approximation method on the route to draw.(3) For in flight simulation technology of missile less analysis, in this paper to air to air missile and air to ground missile trajectory and effects is researched and implemented. The motion trajectory of the missile is modeled using the kinematics, and the motion of the missile is simulated by using the frame animation. The missile’s special effects, including the tail flame and explosion, we use the sine function of the particle system mixture model to model the tail flame, the use of plug-ins to complete the explosive effect, greatly improving the efficiency of the system information.(4) According to the requirements of key technologies in this paper, the key technologies of flight simulation were independent realization and simulation, combined with the actual situation of the engineering application, the flight simulation and key technology to integrate into a full sky module, based on Digital Earth virtual scene, the script deduction experiment system. Finally from rendering frames, triangle data such as the number of analysis results.