Software Package for Simulation and Control System Design for a Nonrigid Space Vehicle

New results in the field of automation of the space flight control system design are presented in this paper. The concept of a universal program for research of dynamic properties, calculation of comprehensive mathematical models, simulation of the flight motion and synthesis of smart control laws for different types of flexible aerospace constructions (launchers and missiles) is considered. Special attention is given to creation of mathematical models of different physical phenomena in aerospace vehicles. The basis of the program is a block that enables the analysis of dynamic characteristics, simulation, and the visual representation of information. The software package is supplied with a library of program modules. These modules are designed on the base of mathematical models of separate vehicle elements and different physical effects, such as flexibility, sloshing, sluggishness of engines, local angle of attack values, etc. Selection of different sets of mathematical models and program modules allows investigating different constructions for known and prospective vehicles. The interface of the program enables changing parameters of the vehicle in a wide range, simulate flight at any trajectory and output results of the analysis in a numerical or graphical form. For synthesis of control laws the smart control approach is used.