Kagome 蜂窝夹层平板的多功能优化设计

王博; 王斌; 程耿东

Kagome 蜂窝夹层平板的多功能优化设计

大连理工大学工程力学系, 工业装备结构分析国家重点实验室, 大连 116023

基金项目: 国家自然科学基金重点基金项目(10332010); 国家创新研究团队计划(10421202); 国家重点基础研究发展计划(2006CB601205)

详细信息

通讯作者:
程耿东,教授,中科院院士,主要从事工程力学、计算力学、结构优化等方面研究 E-mail:chenggd@dlut.edu.cn

中图分类号: V414.19;V414.6
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出版历程
- 收稿日期: 2006-08-10
- 修回日期: 2006-10-26
- 刊出日期: 2007-06-14

Multifunctional design of sandwich panels with Kagome-like cores

State Key Laboratory of Structural Analysis for Indust rial Equipment, Department ofEngineering Mechanics, Dalian University of Technology, Dalian 116023, China

摘要

摘要: 采用“等效介质模型”, 分析了复合材料夹层蜂窝平板的整体换热系数。在此基础上, 针对轻质蜂窝(相对密度小于0. 3) , 选取蜂窝面内等效剪切刚度表征夹层结构的承载能力, 综合考虑散热能力和结构承载能力, 比较了Kagome 蜂窝与传统的正三角形、正方形和正六边形蜂窝的性能。结果显示Kagome 蜂窝不但散热性能很好, 而且通过对蜂窝相对密度和尺寸的优化, 在结构质量相同的情况下, Kagome 蜂窝的综合性能比传统蜂窝具有明显优势。
- Kagome /
- 蜂窝材料 /
- 多功能优化 /
- 散热 /
- 等效介质模型
Abstract: The overall heat t ransfer coefficients of the sandwich panels with two-dimensional metal cores were analyzed using the effective medium model’. Based on the multifunctional demand for the effective heat t ransfer performance ata specified pumping power and st ructural stiffness , the thermo-mechanical performance of Kagome cells wasstudied in comparison with the t raditional regular t riangle , square and hexagon cells with low relative density. Thein-plane shear stiffness is taken as a relevant measure of the st ructural utility in the work. The analytic result s indicate that Kagome cells provide not only higher levels of heat dissipation performance but also the most optimum multifunctional performances at a specified st ructural weight by optimizing the relative density and the size of the cells.
- Kagome /
- honeycomb materials /
- multifunctional optimization /
- heat dissipation /
- effective medium model