Extreme environment-oriented thermal protection material multifunctional collaborative design method
A thermal protection material, collaborative design technology, applied in CAD network environment, design optimization/simulation, computer-aided design, etc., can solve the lack of overall consideration of material thermal/thermal insulation/lightweight collaborative performance, high research and development costs, Long cycle and other issues
A thermal protection material, collaborative design technology, applied in CAD network environment, design optimization/simulation, computer-aided design, etc., can solve the lack of overall consideration of material thermal/thermal insulation/lightweight collaborative performance, high research and development costs, Long cycle and other issues
CN112632772AActive Publication Date: 2021-04-09BEIJING JIAOTONG UNIV +1
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[0044] Taking phenolic resin-based thermal protection composite material as an example, when the material is subjected to aerodynamic heating in an extreme environment, the physical and chemical behavior of the material in a section parallel to the thickness direction of the material is as follows: Figure 4 As shown, that is, the pyrolysis reaction of the matrix releases the pyrolysis gas composed of hydrocarbons. The pyrolysis gas flows to the boundary layer under the pressure gradient and forms a thermal blockage effect. Layers (original layer, pyrolysis layer) appear inside the material. and carbonization layer), the chemical reaction between the oxidizing gas in the boundary layer and the carbon on the surface of the material causes the surface of the material to ablate and retreat, and the heat and mass transfer in the material simultaneously acts on the porous carbon and the pyrolysis gas. In order to give full play to the material's heat-proof / insulation / lightweight mul...
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The invention relates to the field of aerospace thermal protection, and discloses an extreme environment-oriented thermal protection material multifunctional collaborative design method, which comprises the following steps of: 1, establishing a thermal protection material performance high-fidelity theoretical analysis model; step 2, establishing heat-proof / heat-insulation / light-weight integrated collaborative design parameters of the thermal protection material; 3, establishing a thermal protection material heat prevention / heat insulation / light weight integrated performance collaborative analysis model to form a thermal protection material multifunctional collaborative design platform; and step 4, designing a thermal protection material with high thermal protection efficiency by adopting a built thermal protection material multifunctional collaborative design platform aiming at two typical extreme aerodynamic thermal environments faced by a next generation entering or returning reentry hypersonic flight vehicle and aiming at specific aerodynamic thermal load requirements and thermal protection system performance requirements. And the novel multifunctional thermal protection material meeting the application environment and performance requirements of the aircraft is customized as required.
Description
technical field [0001] The invention relates to the field of aerospace thermal protection, in particular to a multifunctional collaborative design method for thermal protection materials facing extreme environments. Background technique [0002] A new generation of hypersonic vehicles such as deep space exploration, interstellar voyage, and return and reentry face a more severe aerodynamic and thermal environment (high enthalpy, extremely high heat flow, high pressure, etc.), under the dual constraints of high payload and limited space, the The heat protection capability, thermal insulation capability and light weight level of thermal protection materials present serious challenges. Existing thermal protection materials have problems such as severe ablation retreat, severe temperature rise on the back, and redundant weight under such severe working conditions. It is urgent to propose a new multifunctional thermal protection material based on the overall consideration of heat...
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Patent Timeline
09 Apr 2021
Publication
CN112632772A
- IPC
- G06F30/20; G06F30/28; G06F30/10; G16C60/00; G06F111/02; G06F113/26; G06F119/08; G06F119/14
- CPC
- G06F30/20; G06F30/28; G06F30/10; G16C60/00; G06F2111/02; G06F2113/26; G06F2119/14; G06F2119/08
- Inventors
- 李玮洁; 张中伟