Algorithm of developing rational geometric shape of the radio transparent nose radar fairing for the aircraft

Abstract

The paper considers a complex criterion for assessing the characteristics of the radio-transparent fairing of the supersonic aircraft onboard radar. The algorithm for research performing which will allow to establish interrelation between radio, aerodynamic and the main geometrical characteristics of radio-transparent nose fairings, such as lengthening of the forward part of a fuselage, an angle of inclination of a tangent to a curve forming a body of rotation and a discriminant of a curve generator is developed. The process of forming the geometric shape of the onboard radar radio-transparent fairing of a supersonic aircraft is based on two interrelated processes: providing the appropriate radio technical characteristics of the fairing to meet the requirements for the range of the aircraft radar detection and minimizing the drag of the nose of the fuselage. Research following the proposed algorithm allows forming technical recommendations for the selecting rational geometric parameters of onboard radar radio-transparent fairing of a supersonic aircraft at the early stages of aircraft design.

To the Question of Multi-Criteria Optimization of Aircraft Components in Order to Optimize its Life Cycle

“…In recent years, the main trend and element of product life cycle management in the aircraft industry is the digitalization of the life cycle stages in a single information space, including various types of tests [8] and the creation of electronic twins of the aircraft, including aerodynamic, through the application of mathematical simulation of geometry flow by finite element method [9]. The models received by results of similar digital tests are verified and possess necessary sensitivity to change of geometrical characteristics, are shown as algorithm in Figure 2, also allow to receive result with high accuracy and can be parametrized that essentially reduces terms of research.…”