METHOD FOR VIBRATION ISOLATION OF HELICOPTER PILOT AND SEAT SUSPENSION FOR IMPLEMENTING METHOD Russian patent published in 2025 - IPC B64D11/06 B60N2/50 

FIELD: aviation.

SUBSTANCE: group of inventions relates to a device for vibration isolation of helicopter crew members. Method is implemented by means of suspension, which is equipped with elastic element, additional elastic element of sign-variable stiffness, made of composite metastructures with shape memory, and guide mechanism for operation in parallel of both elastic elements, and providing mechanical Q-factor of vibration isolation system during movement at infra-frequencies, including almost zero frequencies. Suspension resilient element is made in the form of a rodless air spring with fairings, the shape of which is made so that to provide this element with sign-variable stiffness in the plane orthogonal to the direction of travel, and the additional elastic element is in the form of spatially loaded metastructures with shape memory based on polymer composites with variable geometric and mechanical characteristics, assembled into packages in number and according to structural-functional schemes according to the general layout and bearing capacity of the system.

EFFECT: wider frequency range and higher quality of spatial vibration isolation, including almost zero frequencies.

4 cl, 17 dwg