Aircraft sandwich panel, associated propulsion unit and aircraft and method of manufacture

• Main Authors: BROCHARD WOLFGANG, BLANKE, JU RG
• Format: Patent
• Language: Chinese; English
• Published: 17.10.2023
• Subjects: AEROPLANES; AIRCRAFT; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSIONTRANSMISSIONS IN AIRCRAFT; AVIATION; COSMONAUTICS; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING ORREPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLYING SUITS; GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLYADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFTCOMPONENTS, NOT OTHERWISE PROVIDED FOR; HELICOPTERS; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; PARACHUTES; PERFORMING OPERATIONS; PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL; SPRAYING OR ATOMISING IN GENERAL; TRANSPORTING

Aircraft sandwich panels, related propulsion units and aircraft and methods of manufacture. The invention aims to provide an alternative to aluminum-based aircraft nacelle sandwich panels to avoid corrosion issues and to provide a lighter structure. The sandwich panel according to the invention comprises a first skin (26) and a second skin (28), between which a honeycomb core (24) is positioned, comprising cells (32) open on both sides to the first skin (26) and the second skin (28), respectively, separated from each other by side walls (34), characterized in that the cells (32) are arranged in the honeycomb core (24). The side wall (34) of the core (24) comprises a reinforcement (37) based on aramid fibers, carbon fibers or glass fibers, a polymeric reinforcement resin (38) and a boron nitride powder (40). The invention also relates to a method for manufacturing such a panel, to a propulsion unit and to an aircraft comprising such a panel. 飞行器夹层面板、相关推进单元和飞行器及制造方法。本发明旨在提供针对基于铝的飞行器短舱夹层面板的替代方案，以避免腐蚀问题并提供较轻结构。根据