| 引用本文: | 徐世南,吴催生.导弹结构热防护一体化设计与优化.[J].国防科技大学学报,2020,42(2):78-84.[点击复制] |
| XU Shinan,WU Cuisheng.Design and optimization of structure-thermal protection integrated for missile[J].Journal of National University of Defense Technology,2020,42(2):78-84[点击复制] |
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| 导弹结构热防护一体化设计与优化 |
| 徐世南,吴催生 |
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(中国空空导弹研究院, 河南 洛阳 471000)
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| 摘要: |
| 针对导弹面临的严酷气动热力环境,基于传统波纹夹芯结构,为导弹设计了一种兼具承载和热防护功能的一体化结构。建立热-结构耦合计算模型,对一体化结构进行结构承载与热防护性能分析,结果表明:一体化结构在高温下具有较好的承载能力；增加一体化结构隔热层与内壁厚度有助于提高导弹的热防护效率。以一体化结构热防护效率最高和质量最小为目标,采用第二代非支配排序遗传算法实现了多目标优化,并认识到:一体化结构热防护效率与质量相互影响,设计时需要需综合考虑。 |
| 关键词: 导弹 承载能力 热防护 一体化设计 优化 遗传算法 |
| DOI：10.11887/j.cn.202002010 |
| 投稿日期：2018-10-25 |
| 基金项目:航空科学基金资助项目(20155212009) |
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| Design and optimization of structure-thermal protection integrated for missile |
| XU Shinan, WU Cuisheng |
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(China Airborne Missile Academy, Luoyang 471000, China)
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| Abstract: |
| Based on traditional corrugated core structure,a structure-thermal protection integrated structure was designed for missile in severe aerodynamic and thermodynamic environment. The coupled thermo-mechanical numerical model was established to analyze the structural loading capacity and thermal protection performance of the integrated structure, and results show that the integrated structure has good loading capacity at high temperature and the thermal protection efficiency can be improved by increasing thickness of structural thermal insulating layer and inner wall. Aimed at maximum thermal protection efficiency and minimum structural mass, non-dominated sorting genetic algorithm-Ⅱmethod was adapted to achieve multi-objective optimization. The optimization results show that the thermal protection efficiency factor and structural mass of the integrated structure interact with each other, so it needs comprehensive consideration when designed. |
| Keywords: missile loading capacity thermal protection integrated design optimization genetic algorithm |
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