Determination of the optimal arrangement of engines along the wingspan

Abstract

This article examines the dependence of the loads acting on the wing on the location of the aircraft engines along the wingspan. Based on the obtained dependencies, the optimal position of the power plants along the wing is determined. The values of internal and external force factors acting on the wing are determined by using a simplified wing and engine model in the NX program. Both the loads arising in flight and the factors characteristic of parking on the ground are taken into account. According to the calculations carried out, the optimal position of the external power plant is Zen = 19572 mm, and based on optimal position of the engine from the point of view of bending moments was found, equal to ZenMbend = 20973 mm.

Keywords

• bending moment
• moment of inertia
• powerplant
• airframe
• flight
• finite-element (fem) model