Heat-proof structure, design and manufacturing method of lattice sandwich core with conformal inner runner
A lattice structure, internal flow channel technology, applied in chemical instruments and methods, transportation and packaging, layered products, etc., can solve the problem that the weight of the heat-proof structure and the thermal control fluid circuit cannot be reduced, and the flight compensation of the aircraft is occupied. problems, to achieve the effect of improving load carrying capacity, improving overall performance, and reducing the weight of heat-resistant structures
Active Publication Date: 2021-06-11
CAPITAL AEROSPACE MACHINERY +1
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Problems solved by technology
[0002] The leading edge of the wing of traditional superb aircraft generally adopts a purely passive heat-proof structure, and the thermal protection system and the thermal control system have a clear separation interface, resulting in the weight of the heat-resistant structure and the thermal control fluid circuit can not be reduced, occupying a large proportion of the aircraft. flight compensation
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[0033] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0034] Aiming at the requirements of light weight and structure-function integrated design and manufacture of new aircraft, the present invention proposes a structural design using a conformal thermal control fluid circuit and a lattice sandwich core according to the functional requirements combined with the technical characteristics of laser selective melting and forming additive manufacturing The scheme and the design and manufacture scheme of laser selective melting and forming have realized the manufacture of the leading edge of the thermal control fluid conformal circuit lattice and cored wing. This design scheme can not only reduce the weight of the heat-resistant structure, but also reduce the temperature of the heat-resistant structure through the active cooling technology of the fluid circuit, thereby increasing the allowable upper t...
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Abstract
The invention discloses a heat-proof structure, a design and a manufacturing method of a dot-matrix sandwich core with a conformal inner flow channel. It includes two aspects of structural design and manufacturing method. The structural design includes two parts, the runner and the lattice sandwich layer. The design of the runner is mainly based on CFD of fluid dynamics, and the design of the lattice plus core layer is mainly based on the thermal resistance of the lattice structure and the processability of laser selective melting and forming. The lattice sandwich structure with conformal inner runners cannot be manufactured by traditional technology, but can only be manufactured by laser selective melting forming method based on layer-by-layer manufacturing. This kind of structure can realize the lightweight and structure-function integrated design and manufacture of the thermal protection structure, which can not only reduce the weight of the thermal protection structure, but also reduce the temperature of the thermal protection structure through the active cooling technology of the fluid circuit, thereby increasing the allowable thermal protection material The use of the upper temperature limit will eventually achieve a significant reduction in heat protection and thermal control flight compensation, thereby greatly improving the aircraft's load carrying capacity and improving the overall performance of the aircraft.
Description
technical field [0001] The invention relates to a heat-proof structure, a design and a manufacturing method of a lattice sandwich core with a conformal inner flow channel, and belongs to the technical field of design and manufacture of lightweight heat-resistant structures in aerospace vehicles. Background technique [0002] The leading edge of the wing of traditional superb aircraft generally adopts a purely passive heat-proof structure, and the thermal protection system and the thermal control system have a clear separation interface, resulting in the weight of the heat-resistant structure and the thermal control fluid circuit can not be reduced, occupying a large proportion of the aircraft. flight compensation. Contents of the invention [0003] The technical problem of the present invention is: to overcome the deficiencies of the prior art, and provide a heat-proof structure, design and manufacturing method of a lattice sandwich core with conformal inner runners. [0...
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IPC IPC(8): B32B15/02B32B3/08B32B3/26B32B15/04B32B33/00B32B37/02B64C1/40
CPCB32B3/085B32B3/26B32B15/02B32B15/04B32B33/00B32B37/02B32B2307/304B32B2605/18B64C1/40Y02T50/40
Inventor 董鹏梁晓康巩萌萌赵衍华朱瑞灿陈靖陈济轮赵莹孙超淡婷
Owner CAPITAL AEROSPACE MACHINERY