СОВЕРШЕНСТВОВАНИЕ ЧИСЛЕННЫХ МЕТОДОВ РАСЧЕТА ГИДРОМЕХАНИЧЕСКИХ УСТРОЙСТВ АВТОМАТИКИ ЛЕТАТЕЛЬНЫХ АППАРАТОВ

Abstract

The article is devoted to the consideration of the main problems of mathematical modeling and the most rational presentation of the results of numerical research of hydro-mechanical regulators of aircraft at the stage of practical design. Traditionally, the analysis and synthesis of hydraulic automation devices of aviation systems are performed on the basis of linear frequency methods of the theory of automatic control, which allow us to obtain approximate characteristics: accuracy, stability, controllability. The main task in this case is to develop such assumptions and solutions that would allow solving the problem in an analytical form. However, the number of nonlinear problems completed by analytical methods is negligible. In such a situation, computer modeling becomes an alternative. Mechanization and partial automation of the computational experiment led to qualitative changes in the simulation results and allowed us to obtain generalized diagrams of the dynamic state of the studied systems. Using a specific example, the issues of algorithmic modeling, analysis and numerical study of the dynamic characteristics of the automatic control system of aircraft on transient modes are considered. The paper clearly demonstrates how the application of the generalized variables method helps to present the results of numerical experiments in a rational form and to determine the influence of parametric complexes on the main characteristics and to construct generalized dynamic characteristics according to the main quality criteria