Heat Environment Analysis And Trajectory Optimization Of Hypersonic Vehicle

On the basis of parameters of the structure model based on the publishedfor hypersonic vehicle(ASV), centroid dynamics equation and centroidkinematics equation of hypersonic vehicle is established, supplement thesimplified equation are given, and the maximum lift-to-drag trajectorysimulation. Trajectory optimization of hypersonic vehicle must meet theperformance requirements of thermal environment, so should analyze thethermal environment of hypersonic process, and using the optimization theory tothe maximum range trajectory optimization design, multi-objective trajectoryoptimization based on the pressure and heat environment of the hypersonicvehicle.This paper established the three degrees of freedom dynamic model of thehypersonic vehicle, and simulation the maximum lift-to-drag trajectory as thereference trajectory. In the thermal environment analysis of the hypersonicvehicle, launched multi-objective trajectory optimization of the hypersonicvehicle based on the pressure and thermal environment constraint boundaryconditions. The simulation results show the effectiveness of the multi-objectivewith GA optimization algorithm in trajectory optimization of the hypersonicvehicle.