MULTILAYER AIRCRAFT PANEL Russian patent published in 2020 - IPC B32B3/00 B64C1/12 

FIELD: aviation.

SUBSTANCE: invention relates to aircraft engineering and relates to aircraft structural structures from polymer unidirectional composite materials, particularly structural designs of sealed panels with small curvature of fuselage of civil aircraft. Proposed multilayer panel comprises external and internal power sub-panels, truss filler and docking assemblies connecting these power elements to each other. Panels represent a structure of mesh topology, consisting of unidirectional composite ribs. Main structural element of the truss is a hybrid metal composite rod. Multilayer panel also comprises non-rigid structural elements: external tight skin, layer of heat insulation and wavy elastic sealed skin.

EFFECT: invention provides reduced weight of the structure, provided the required level of protection against impact and climatic effects, as well as better manufacturability, control and repairability with respect to panels with multilayer skin structural-power circuit (sandwich panels).

9 cl, 3 dwg