介绍了一种特殊的辐轮式低温支撑,针对这种不同材质和辐条数量及其截面形状的辐轮式结构,分别从热学性能和力学性能两方面进行了实验研究,测量了聚醚醚酮(PEEK)和玻璃钢(GRP)两种材料的热导率以及由这两种材料组成的多种结构形式的支撑轮的热阻,对试样进行力学拉伸破坏实验,并对实验结果进行了分析与比较,给出了误差分析.实验结果表明,温度在200 K以下时PEEK材料热导率小于GRP材料,200 K以上时两者相当;支撑轮的热阻随着辐条数量和截面积的增加而减小,且实验测得的热阻是固体传热和辐射换热的综合结果;支撑轮的力学性能随着辐条数量和截面积的增加而提高,GRP材料的支撑轮径向承受载荷能力较强、轴向偏弱,而PEEK材料的支撑轮各方向上承载能力较为均匀,这主要是因为GRP材料是各向异性的.综合热性能和力学性能实验结果,PEEK材料6辐带肋结构的支撑轮是最佳选择.
参考文献
| [1] | 刘建峰,沈 飞.制冷技术在空间红外光学系统中的应用及其发展趋势[J].红外,2011,32(1):16-22.Liu Jianfeng,Shen Fei.Application of cooling technology in space infrared optical systems and its development trend[J].Infrared,2011,32(1):16-22. |
| [2] | Benford D J,Moseley S H.Cryogenic detectors for infrared astronomy:the single aperture far-infrared (SAFIR)observatory[J].Nuclear Instruments and Methods in Physics Research Section A,2004,520(1):379-383. |
| [3] | Ross Jr,R G.Estimation of thermal conduction loads for structural supports of cryogenic spacecraft assemblies[J].Cryogenics,2004,44 (6):421-424. |
| [4] | 杨玉光.斯特林制冷机中超导滤波器支撑结构的设计[J].电子机械工程,2010,26(6):33-36.Yang Yuguang.Support structure design for superconducting filter in stirling cooler[J].Electro-Mechanical Engineering,2010,26(6):33-36. |
| [5] | Reed R P,Golda M.Cryogenic composite supports:a review of strap and strut properties[J].Cryogenics,1997,37(5):233-250. |
| [6] | Chu X X,Wu Z X,Huang R J,et al.Mechanical and thermal expansion properties of glass fibers reinforced PEEKcomposites at cryogenic temperatures[J].Cryogenics,2010,50(2):84-88. |
| [7] | 尹志娟,王丽雪,姜珊.玻璃纤维增强环氧树脂基复合材料的低温性能研究[J].黑龙江工程学院学报:自然科学版,2010,24(1):50-52.Yin Zhijuan,Wang Lixue,Jiang Shan.Study on relatively low temperature properties of glass fiber reinforced epoxy resin composites[J].Journal of Heilongjiang Institute of Technology:Nature Science,2010,24(1):50-52. |
| [8] | 侯进森,叶金蕊,王长春,等.碳纤维/环氧树脂预浸料固化过程中的热导率测定[J].复合材料学报,2012,29(4):23-28.Hou Jinsen,Ye Jinrui,Wang Changchun,et al.Measurement of thermal conductivity during curing process of carbon fiber/epoxy prepreg[J].Acta Materiae Compositae Sinica,2012,29(4):23-28. |
| [9] | 张靖周,常海萍.传热学[M].北京:科学出版社,2009:21-45.Zhang Jingzhou,Chang Haiping.Heat transfer[M].Beijing:Science Press,2009:21-45. |
| [10] | 许雯,黄荣进,李来风.固体材料低温热导率测试系统[J].低温工程,2008,162(2):32-36.Xu Wen,Huang Rongjin,Li Laifeng.Thermal conductivity measuring system of solid materials at low temperature[J].Cryogenics,2008,162(2):32-36. |
| [11] | 陈艳婕,张鹏,王如竹.固体材料低温热导率的测量[J].低温与超导,2010,38(6):1-6.Chen Yanjie,Zhang Peng,Wang Ruzhu.Thermal conductivity measurements of solid materials at low temperatures[J].Cryogenics and Superconductivity,2010,38(6):1-6. |
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