| Launch vehicle attitude control system is one of the key subsystems which havemulti-functional, complex, high reliability requirements. The system programming andthe parameters choice must to be calculated, analysis, tests. But rocket flight test iscostly, and it does not allow use a great deal experiments to test system. So systemsimulation test is necessary. At the same time, with the increasingly complex systemsand increasingly detailed division of labour, traditional centralized system can no longermeet the requirements of simulation. Therefore, research the modelling and simulationdistributed platform is also very necessary. Based on these above ideas, this article aimat a certain model of rocket, establish simulation models of its attitude control systemthroughout the Matlab/Simulink simulation environment, and research the Distributedmodelling and simulation platform-HLA (High Level Architecture) and the Simulinksimulation.This thesis studied the attitude control system’s mathematical model. Accordingto the attitude control system modules division, it established mathematical models ofattitude control equation subsystem and six freedom dynamics equation subsystem. The6freedom dynamics mathematical model considered gravity, aerodynamics, windmarket interference and rocket body structure interference and overlooked rocketvibration effects and liquid fuel flexible.Through simulation modelling tools Matlab/Simulink, this paper researchedattitude control system Simulink simulation model. Established the single aircraft rocketsystem Simulink simulation models and6freedom dynamics simulation of Simulinkmodels on the basis of system integration, with the attitude control system circuitSimulink simulation models.We also do some research on the distributed modelingsimulation platform-HLA (High Level Architecture) and the Simulink simulationmodel.The simulink simulation models will be made into a federal member of the HLA,and established the foundation of numerical simulation and scene simulation.Test the simulation model, the simulation results show that simulation models are accuracy. Through this model can understand the work of the launch vehicle attitudecontrol system’s principles and properties, operators can be trained by this model, andstored lots of knowledge for next study. |
