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刘嘉豪(2001—),男,辽宁大连人,硕士研究生,主要研究方向为复合材料,E-mail:1181505949@qq.com |
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杨帆(1990—),男,黑龙江同江人,讲师,博士,主要研究方向为复合材料,E-mail:913973290@qq.com。 |
收稿日期: 2025-01-06
修回日期: 2025-04-28
录用日期: 2025-04-30
网络出版日期: 2026-03-12
基金资助
国家自然科学基金面上项目(11972141)
辽宁省教育厅系列项目(JYT2020121)
辽宁省教育厅系列项目(JYTMS20230231)
辽宁省教育厅系列项目(JYT2020153)
航空科学基金(2020Z006054002)
国防重点学科实验室项目(SHSYS202208)
Thermal insulation performance of anisotropic C/SiC corrugated lattice structure
Received date: 2025-01-06
Revised date: 2025-04-28
Accepted date: 2025-04-30
Online published: 2026-03-12
为了深入研究C/SiC波纹点阵结构复合材料在航空航天等极端环境下的隔热潜力,以C/SiC波纹点阵结构复合材料为研究对象,依据傅里叶传热定律,借助 CAE 仿真手段对其隔热性能展开研究。首先,在各向同性条件下,针对稳态与瞬态情形深入探讨了温度梯度对热传递系数的作用规律;其次,综合优化变量约束范围,考虑纤维尺寸、纤维含量及编织方式因素,基于各向异性对波纹点阵结构进行了传热性能的仿真分析。仿真结果表明,各向同性传热条件下,波纹点阵结构5种高温梯度下的隔热效率达到13.89%~14.12%。各向异性传热条件下,碳纤维温度显著高于SiC基体温度,且当纤维束含量处于600 K以上时,温度对热传递系数的影响可以忽略不计,斜纹编织方式的隔热性能优于平纹编织方式,在低温隔热条件下表现得更为突出,为航空航天复合材料隔热性能研究提供了工程应用价值。
刘嘉豪 , 杨帆 , 杜洋 , 王威龙 , 杨烁冉 , 陈萍 , 赵晋芳 . 各向异性的C/SiC波纹点阵结构隔热性能[J]. 沈阳航空航天大学学报, 2026 , 43(1) : 41 -47 . DOI: 10.3969/j.issn.2095-1248.2026.01.006
To further explore the thermal insulation potential of C/SiC corrugated lattice structure composite materials in extreme environments such as aerospace,took C/SiC corrugated lattice structure composite materials, and investigated their thermal insulation performance using CAE simulation methods based on Fourier’s heat transfer law. Firstly, under isotropic conditions, the effect of temperature gradient on heat transfer coefficient was deeply explored for steady-state and transient situations; Secondly, by comprehensively optimizing the variable constraint range, considering factors such as fiber size, fiber content, and weaving method, a simulation analysis of the heat transfer performance of the corrugated lattice structure was conducted based on anisotropy. The simulation results show that under isotropic heat transfer conditions, the insulation efficiency of the corrugated lattice structure under five high-temperature gradients reaches 13.89% to 14.12%; Under anisotropic heat transfer conditions, the temperature of carbon fiber is significantly higher than that of SiC matrix, and when the fiber content is above 600 K, the effect of temperature on the heat transfer coefficient can be ignored. The twill weaving method exhibits better insulation performance than the plain weaving method, especially under low-temperature insulation conditions. This simulation study provides certain engineering application value for the research of thermal insulation performance of aerospace composite materials.
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| [4] |
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| [5] |
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| [6] |
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| [7] |
|
| [8] |
|
| [9] |
|
| [10] |
|
| [11] |
|
| [12] |
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| [13] |
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| [14] |
|
| [15] |
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| [16] |
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