Abstract:

An optimum design method is proposed to tackle the design and optimization problem of the discontinuous boosting trajectory with multi constraints including dynamic pressure, overload, controls, and terminal states. First, trajectory flight project during the boost phase is derived combined with the optimal control theory. Second, the reasonable discontinuous boosting trajectory project is designed in consideration of multi constraints. Finally, the optimization algorithm is modified by adopting the adaptive inertia weight and disturbance strategy to improve the convergence rate of the classic particle swarm optimization algorithm and avoid the premature convergence problem. The results of the simulation experiment show that the designed discontinuous boosting trajectory project is reasonable with all constraints satisfied, and the improved particle swarm optimization algorithm could resolve the problem of the discontinuous boosting trajectory with multi constraints. The range of the optimization scheme is 6.69% more than primary scheme and has a marked increase by 14.09% than the continuous boosting trajectory.