Thermal bridge blocking structure for aircraft and preparation method thereof

Abstract

The invention provides a thermal bridge blocking structure for an aircraft and a preparation method thereof. The thermal bridge blocking structure is located between a high-temperature structure and acold bearing structure of the aircraft. The thermal bridge blocking structure comprises a plurality of thermal insulation units. The multiple thermal insulation units are arranged in a stacked mode in the direction from the high-temperature structure to the cold bearing structure. Each thermal insulation unit comprises a first thermal insulation part and a plurality of second thermal insulation parts; the multiple second thermal insulation parts are arranged on one end face, in the stacking direction, of the first thermal insulation part at intervals and distributed in the circumferential direction of the end face, and projections of the multiple second thermal insulation parts of any two adjacent thermal insulation units in the stacking direction are arranged in a staggered mode so as toprolong the thermal conduction path between the high-temperature structure and the cold bearing structure. By means of the technical scheme, the technical problem that in the prior art, a thermal bridge blocking structure is poor in thermal insulation effect in a narrow space, and consequently the thermal insulation requirement of a high-speed aircraft cannot be met can be solved.

Description

technical field [0001] The invention relates to the technical field of thermal bridge blocking structure design, in particular to a thermal bridge blocking structure for an aircraft and a preparation method thereof. Background technique [0002] Due to the high flying Mach number and low flying altitude of high-speed aircraft, the thermal environment of each part of the aircraft is relatively harsh. The local high-temperature structure of the fuselage (such as side strip structure, local interference area, etc.) generally uses thermal structural composite materials for heat-proof design, and the fuselage load-bearing structure connected to the local high-temperature structure generally uses metal with higher load-bearing efficiency. Cold load-bearing structure, the outside of the metal cold load-bearing structure can be laid with thermal protection structures such as heat-resistant tiles for space shuttles and PQ phenolic aldehyde. In order to reduce the heat transfer betwe...

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Problems solved by technology

[0003] The invention provides a heat bridge blocking structure for aircraft and a preparation method thereof, which can solve the problem that the heat insulation effect of the heat bridge blocking structure in the prior art is poor in a narrow space and cannot meet the heat insulation requirements of high-speed aircraft technical issues

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