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杆件倾角对复合点阵夹芯结构主动换热性能的影响

, PP. 180-186

Keywords: 夹芯结构,主动换热,热网络法,最高温度,优化分析

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Abstract:

对具有内热源的复合材料点阵夹芯结构的流体流动和热传输特性进行了数值研究,采用等效热网络法和以结构槽道高度为度量的无量纲参数分别对结构的热源热场和主动换热性能进行了分析和表征,揭示了流体流动及热源温度对芯体杆件倾角变化的响应,给出了一定热流密度下倾角与热源最高温度之间的函数关系,并对基于倾角的结构热/力性能进行了初步的优化分析。结果表明,该复合材料点阵夹芯结构具有优异的主动换热特性,且随着杆件倾角的增大,结构的换热效率提高,结构最高温度降低。

References

[1]  杜善义. 先进复合材料与航空航天 [J]. 复合材料学报, 2007, 24(1): 1-12. Du Shanyi. Advanced composite materials and aerospace engineering [J]. Acta Materiae Compositae Sinica, 2007, 24(1): 1-12.
[2]  Roberts S C, Aglietti G S. Satellite multifunctional power structure: Feasibility and mass savings [J]. Journal of Aerospace Engineering, 2008, 222(1): 41-51.
[3]  Gibson L J, Ashby M F. Cellular solids: Structure and properties [M]. Cambridge: Cambridge University Press,1997.
[4]  Evans A G, Hutchinson J W, Fleck N A, Ashby M F, Wadley H N G. The topological design of multifunctional cellular metals [J]. Progress in Materials Science, 2001, 46 (3/4): 309-327.
[5]  Deshpande V S, Fleck N A. Collapse of truss core sandwich beams in 3-point bending [J]. International Journal Solids Structure, 2001, 38(36/37): 6275-6305.
[6]  卢天健, 何德平, 陈常青, 赵长颖, 方岱宁, 王晓林. 超轻多孔金属材料的多功能特性及应用 [J]. 力学进展, 2006, 36(4): 517-535. Lu Tianjian, He Deping, Chen Changqing, Zhao Changying, Fang Daining, Wang Xiaolin. Multi-functional properties and applications of ultra-light porous metal materials [J]. Advances in Mechanics, 2006, 36(4): 517-535.
[7]  Sun Y G, Gao L. Structural responses of all-composite improved-pyramidal truss sandwich cores [J]. Materials and Design, 2013, 43(1): 50-58.
[8]  Lu T J, Valdevit L, Evans A G. Active cooling by metallic sandwich structures with periodic cores [J]. Progress in Materials Science, 2005, 50(7): 789-815.
[9]  Vaidya A S, Vaidya U K, Uddin N. Impact response of three-dimensional multifunctional sandwich composite [J]. Materials Science and Engineering: A, 2008, 472(1/2): 52-58.
[10]  刘书田, 刘 鹏, 张永存, 王 博. 二维多孔材料散热性能分析与设计 [J]. 复合材料学报, 2008, 25(1): 147-152. Liu Shutian, Liu Peng, Zhang Yongcun, Wang Bo. Heat dissipation analysis and design of two-dimensional cellular materials [J]. Acta Materiae Compositae Sinica, 2008, 25(1): 147-152.
[11]  王 博, 王 斌, 程耿东. Kagome蜂窝夹层平板的多功能优化设计 [J]. 复合材料学报, 2007, 24(3): 109-115. Wang Bo, Wang Bin, Cheng Gengdong. Multifunctional design of sandwich panels with Kagome-like cores [J]. Acta Materiae Compositae Sinica, 2007, 24(3): 109-115.
[12]  Kim T, Hodson H P, Lu T J. Contribution of vortex structures and flow separation to local and overall pressure and heat transfer characteristics in an ultra-lightweight lattice material [J]. International Journal Heat and Mass Transfer, 2005, 48(3/4): 4243-4264.
[13]  Tian J, Kim T, Lu T J, Hodson H P, Queheillalt D T, Sypeck D J, Wadley H N G. The effect of topology upon fluid-flow and heat-transfer within cellular copper structure [J]. International Journal Heat and Mass Transfer, 2004, 47(14-16): 3171-3186.
[14]  Joo J H, Kang B S, Kang K J. Experimental studies on friction factor and heat transfer characteristic through wire-woven bulk Kagome structure [J]. Experimental Heat Transfer, 2009, 22(2): 99-116.
[15]  Choi I K, Kim T, Song S J, Lu T J. Endwall heat transfer and fluid flow around an inclined short cylinder [J]. International Journal Heat and Mass Transfer, 2007, 50(5/6): 919-930.
[16]  孙雨果, 高 亮. 复合材料点阵夹芯结构的换热特性 [J]. 复合材料学报, 2011, 28(4): 185-195. Sun Yuguo, Gao Liang. Heat transfer characteristics of composite sandwich structure with lattice cores [J]. Acta Materiae Compositae Sinica, 2011, 28(4): 185-195.

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