Syutkina-Doronina S. A methodology for the optimization of design characteristics of single-stage guided rockets with solid rocket motors

The thesis is devoted to the development of a methodology for the initial design phase optimization of the motion control programs and basic characteristics of guided solid rockets that are capable of flying along ballistic and aeroballistic trajectories. A complex problem of optimizing the design parameters and motion control programs of guided rockets is formulated in the framework of the optimal control theory. An approach is proposed to forming rocket motion control programs in the form of polynomials, thus reducing the problem of the optimal control theory to a simpler problem of nonlinear mathematical programming. For the initial design phase, a package of mathematical modes is developed for the estimation of the dimensions, mass, and energy, and aerodynamic, and ballistic characteristics, motion control programs and trajectory parameters in different segments of ballistic and aeroballistic trajectories. Algorithms of implementation of various methods for the optimization of the design parameters and control programs of a guided rocket have been developed. The accuracy and speed of deterministic and random optimization methods in the automatic mode were estimated. The deterministic method of configurations was used to optimize of the typical composition-layout schemes of the investigated guided rockets. The dependence of the objective function on variations of the trajectory parameters and basic characteristics of typical composition-layout schemes of guided rockets was investigated.