The invention discloses a honeycomb filling multifunctional thermal protection structure and a construction method thereof, and belongs to the technical field of spaceflight materials, the honeycomb filling multifunctional thermal protection structure comprises a bearing heat dissipation layer and a bearing thermal insulation layer, the bearing heat dissipation layer and the bearing thermal insulation layer each comprise a macrostructure and a microstructure, the bearing heat dissipation layer adopts a high-thermal-conductivity C/C composite material thin layer, and the bearing thermal insulation layer adopts a high-thermal-conductivity C/C composite material thin layer; the microstructure of the bearing heat dissipation layer is a three-dimensional braided structure; the bearing heat insulation layer is composed of a low-heat-conduction C/C honeycomb and a porous heat insulation material, and the microstructure of the bearing heat insulation layer is a plain weave structure; the method comprises the following steps: firstly, establishing a dual-scale geometric model by utilizing 3D modeling software; secondly, establishing a high-fidelity dual-scale mathematical model according to a real use environment and condition; simulating heat-proof and heat-insulating properties and mechanical properties of the honeycomb filling multifunctional thermal protection structure by utilizing finite element software; finally, the final design is determined by comprehensively evaluating the heat protection and heat insulation performance, the mechanical performance and the lightweight level of the honeycomb filling multifunctional thermal protection structure.
本发明公开了一种蜂窝填充多功能热防护结构及其构建方法,属于航天材料的技术领域,包括承载散热层和承载隔热层,承载散热层和承载隔热层均包括宏观结构和细观结构,承载散热层采用高导热的C/C复合材料薄层,承载散热层的细观结构为三维编织结构;承载隔热层由低导热的C/C蜂窝及多孔隔热材料构成,承载隔热层的细观结构为平纹编织结构;本发明包括以下步骤:首先利用3D建模软件建立双尺度几何模型;其次根据真实使用环境和条件,建立高保真的双尺度数学模型;然后利用有限元软件模拟蜂窝填充多功能热护结构的防热、隔热性能、力学性能;最后通过综合评估蜂窝填充多功能热防护结构的防热、隔热性能、力学性能、轻量化水平确定最终设计。
Honeycomb filling multifunctional thermal protection structure and construction method thereof
一种蜂窝填充多功能热防护结构及其构建方法
2023-12-05
Patent
Elektronische Ressource
Chinesisch
IPC: | B64C AEROPLANES , Flugzeuge / B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM , Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse / B64F GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT , Boden- oder Flugzeugträgerdeckeinrichtungen besonders ausgebildet für die Verwendung in Verbindung mit Luftfahrzeugen / B64G Raumfahrt , COSMONAUTICS / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung / G16C |
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