Attitude Control of Mass Moment and Lateral Thrust Combined Control Fight Vehicle

A combined attitude control method is developed for the mass moment and lateral thrust flight vehicle in intra-atmospheric space.The nonlinear equations of motion which provide the basis for a detailed simulation model are derived.And then through an analysis of control principle for lateral thrust control and mass moment,a compound strategy is presented and discussed,and special control methods are given in different phases.On the basis of all above the variable structure control law is designed for mass moment and lateral thrust respectively.Simulation results show that the system stabilization can be satisfied to realize efficiently attitude adjustment for flight vehicle.Dynamic,aerodynamic,and inertial cross-coupling do not appear to significantly degrade the control system's response.