MAI has developed a mathematical model that should make landing gear failure controllable during an emergency landing. The algorithm is designed for typical schemes used on Boeing 737, Superjet 100, MC-21, and Airbus A320, among others: under critical load, special hollow bolts-pins should shear at a specified point and separate the strut from the airframe, reducing the risk of damage to fuel tanks in the wing.

For normal operation, the fastener maintains strength and holds the strut, but when the calculated load is exceeded, it turns into a kind of safety link. The computational model links the geometry of the joint and the forces arising during landing with the parameters of the shear element. This allows for pre-determining the location and conditions of its failure so that separated landing gear parts do not come into dangerous contact with the wing.

The developers consider two common landing gear architectures. The first is a "triangle" type scheme, used, in particular, on the Boeing 737 and Superjet 100. The second involves an external spar and hinged attachment points; this scheme is used for the MC-21 and Airbus A320 landing gear. The MAI model is designed for calculations for both configurations, and its universal formulas should take into account structural dimensions and calculated landing loads.

The practical meaning of the development is related to the consequences of a hard landing or runway overrun. If the strut breaks in an uncontrolled area, its elements can damage the fuel tanks located in the wing. Controlled shearing of the fastener should break the force connection earlier and move the strut away from the airframe, reducing the risk of tank damage and subsequent fire.