Based On The Hla Launch Vehicle Flight Simulation System Architecture Design And Implementation

With the development of Mathematical simulation and Visual simulation technology, the simulation technique has been more and more widely applied to the military affairs filed. The digital simulation system of launch vehicle was proposed. It is composed of scene simulation system, digitial modelling system and high level architecture (HLA) platform. The flying simulation system which contains HLA,Visual simulation technology and Mathematical simulation technology is the most technical part in The digital simulation system of launch vehicle,its main function is to make use of the real-time calculation results to drive the flight process of launch vehicle in the scene.Adapting the CZ series Launch Vehicle as research object, the full digital flying simulation system was devoloped. Establishing mathematical simulation model of Launch Vehicle control system, the architecture of Launch Vehicle flight simulation system is generated according to the requirement of real-time model by means of driving.Using the method of developing Matlab_RTI middle piece and ORGE_RTI adapter, the integration of mathematical and visual simulation based on HLA is realized and the real-time performance of this system is improved.Firstly,the development history of the mian simulation technologys in flying simulation system are reviewed,the theory of HLA is introduced detailedly and the design method of architecture in the digital simulation system of launch vehicle is expatiated.Secondly, The architecture of Launch Vehicle flight simulation system is designed according to the function of driving by real-time data and its implemented approach is given. At last, HLA has become the common standard of international Distributed Interactive Simulation for its superiority in reusability and interoperability, but it has shortages in real-time simulation, especially when there are different simulation types in the system based on HLA,So the real-time performance of Launch Vehicle flight simulation system is improved by empoldering Matlab-RTI middle piece and ORGE-RTI adapter.At present, the Launch Vehicle flight simulation systems is being applied in training of military and is helpful to flight test of launch vehicle and demonstration of designed project.