ABSTRACT
This chapter presents the development of the method and algorithm for the optimization of design and ballistic characteristics of multi-purpose interplanetary spacecraft. The study of interplanetary flight segments is the first stage of the comprehensive analysis of interplanetary trajectories. The main goal of this stage is the selection of the reference orbits meeting all the design restrictions and requirements. The methods of mission analysis are based on a multi-level approach, which makes it possible to subdivide the problem into more simple subprocesses, thus reducing the number of parameters. The design must deal with admissible domains rather than trajectories. Experiments in mission design for interplanetary spacecraft show that the well-known activity spheres method meets these requirements. The generalized algorithm is applied to construct the parameters of trajectories with perturbation planetary flybys. The stability of the algorithm is guaranteed by the condition that the motion takes place only within the vicinity of the isoline determined by the specified accuracy.
