Elements of the synthesis method for the layout of a front-line aircraft

Abstract

The article describes a technique that allows to form a planned projection of the aircraft using the minimum number of iterations (refinements based on aerodynamic and weight calculations results). The elements of the technique are described via example of the development (synthesis) of the layout scheme of a front-line aircraft with two engines and internal cargo compartments, performed according to the normal balancing scheme. Synthesis is carried out on the basis of certain predesign parameters, limitations, as well as solutions set by the designer, based on the analysis of parametric ratios and statistical dependencies.

Evaluation of optimal grain hardening modes to increase fatigue resistance of parts made of high-strength steels

“…These modes are chosen based on the equipment and capabilities of aircraft repair enterprises. The high efficiency of restoring the resource of hardened parts by repeated surface hardening is confirmed, for example, in the works [18][19][20][21].…”

Assessment of the load-loading capacity of bolted joints during bolt bending and the combination of materials used

“…A change in the hollowness of a bolt is associated with a change in the location of the material relative to the axis of the bolt. As m increases, the moment of inertia of the bolt cross-section increases; for the same cross-sectional area, its rigidity increases 𝐸𝐼 bending, which leads to a decrease in the coefficient 𝐾 𝑘 and, consequently, to a decrease in stress irregularity [19,20].…”

Application of automated systems for quality control of ground anti-icing treatment of aircraft

“…From the foregoing we can see that only at the stage of terrestrial de-icing, from the entire spiral of the life cycle of the POJ, we are faced with the non-triviality of the task of quality control of the POJ, and this stage needs to be systematic and optimized [10][11][12][13]].…”