Многокритериальный выбор профиля крыла на основе многоцелевого подхода для легкого гражданского самолета

Научный вестник ГосНИИ ГА. 2020. № 30. С. 58–66.

Markiewicz P.

This article considers the problem of choosing a wing airfoil, taking into account the multi-purpose nature of light civilian aircraft. For a given class of aircraft, it is assumed that the flight is performed at airspeed less than the critical Mach number, this allows to omit the effect of compressibility on airfoil performance. We validate the need of multi-criterion and multi-purpose definition of this problem, which allows to include the range of flight conditions (task performance) into consideration. The methods of solving a vector problem in a multi-purpose form are considered. We propose a set of basic efficiency criteria in the wing airfoil selection. Also we discuss the combining of particular criteria into the appropriate objective function. We evaluate possible alternative solutions for integrated and guaranteed multi-purpose systems. The problem of combining a particular criteria is solved with the use of universal coefficients of importance in multi-purpose definition of the task. We present the algorithm for solving the problem of selecting the wing airfoil in this research. Also, the results of the efficiency of this algorithm was studied by estimating achievement of defined task. A series of NACA airfoils in prototype flight condition were researched through a comparative analysis between the effectiveness of airfoil and the prototype base airfoil.

Keywords: многокритериальная оптимизация, multicriteria optimization, теория принятия решений, flight dynamics, динамика полета, decision making, method of universal coefficients, airfoil selection, multipurpose approach, aircraft design, метод универсальных коэффициентов важности, выбор профиля крыла, многоцелевой подход, проектирование самолетов