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1. 中国科学院 长春光学精密机械与物理研究所,吉林 长春,130033
2. 中国科学院大学 北京,100039
纸质出版日期:2014-03-25
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孔林,王栋,姚劲松等. 轻型空间相机支撑桁架的精确控温[J]. 光学精密工程, 2014,22(3): 712-719
Kong Lin, Wang Dong, Yao Jin-song etc. Precision temperature control for supporting trusses of lightweight space cameras[J]. Editorial Office of Optics and Precision Engineering, 2014,22(3): 712-719
由于长焦距相机中支撑桁架的温度变化会降低光学系统成像质量
本文研究了空间相机支撑桁架的热控设计。根据某高分辨相机的结构参数、光学系统对支撑桁架温度的要求及卫星的轨道参数分析了桁架杆的吸收外热流并确定了加热功率;讨论了桁架热平衡公式
并确认桁架杆的轴向温差主要与桁架杆加热片功率和加热片粘贴位置有关。在对桁架杆简化数学模型理论分析的基础上
得到了杆的温差方程
进而提出两种满足支撑桁架精确控温的热设计方法:增大加热片面积和增加杆的等效导热率。实验证明了新型导热材料PGS(Pyrolytic Graphite Sheet)可以很好地满足支撑桁架等效导热率及轻型化的要求
使用0.076 mm厚的PGS时
可以将支撑桁架的轴向温差由7.9℃减小为0.83℃
且每根桁架杆质量只增加12 g。最后
通过热分析模型进行仿真实验
证明了理论分析的正确性
通过对桁架杆温差测量试验和热真空试验
验证了仿真分析结果和PGS的空间适应性。 得到的结果证明了本文提出的空间桁架的精确控温方法是适用且有效的。
张雷, 姚劲松, 贾学志, 等.同轴空间相机碳纤维复合材料桁架结构的研制[J].光学 精密工程, 2012, 20(9):1967-1973.
ZHANG L, YAO J S, JIA X ZH, et al..Development of trusses made of carbon fiber composites for coaxial space remote sensors [J].Opt.Precision Eng., 2012, 20(9):1967-1973.(in Chinese)
范斌, 王艳.国外长焦距高分辨率遥感相机桁架结构研究[J].航天返回与遥感, 2008, 29(2):35-41.
FAN B, WANG Y.Research on truss structure of foreign remote-sensing cameras with long focal length and high resolution [J].Spacecraft Recovey & Remote Sensing, 2008, 29(2):35-41.(in Chinese)
张雷, 金光.轻型空间相机桁架结构设计与模态分析[J].空间科学学报, 2008, 28(3):260-263.
ZHANG L, JIN G.Structure design and modes analysis for the truss of light high resolution space camera [J].Chin.J.Space Sci., 2008, 28(3):260-263.(in Chinese)
ROBET C R.CFRP composites for optical and structures in telescope applications[C].Proc.SPIE 2543,1995, 2543:154-161.
PAUL R Y, JR.光机系统设计[M].北京:机械工业出版社, 2008.
PAUL R Y, JR.Opto-Mechanical Systems Design[M].Beijing:China Machine Press, 2008.
LIN W M, YUAN J L, BENGT S D.Review on graphite foam as thermal material for heat exchangers [C].World Renewable Energy Congress, 2011:748-755.
ZHANG S H, MIKE V, PAUL B, et al..Evaluation and finite element modeling for new type of thermal material Annealed Pyrolytic Graphite (APG) [J].Thermochimicaacta, 2006, 6(9):6-9.
李积慧, 韩双丽.空间相机的热分析与热控制技术[J].光学 精密工程, 1999, 7(6):36-41.
LI J H, HAN SH L.Thermal analysis and thermal control techniques of space camera[J].Opt.Precision Eng., 1999, 7(6):36-41.(in Chinese)
Spacecraft thermal control[S].NASA Space Vehicle Design Criteria, 1973.
PANCZAK T, WELCH M.Thermal Desktop User Manual, www.cretch.com[OL]..
Panasonic′s Thermally Conductive Pyrolytic Graphite Sheet (PGS).Panasonic Industrial Company Product Management Dept.2005[OL].
EDWARD Silverman, MARK Montaesano.Development of an Annealed Pyrolytic Graphite Material for a Spacecraft Electronics Packaging Payload Module[OL].NORTHOP GRUMMAN, 2004.
HOSEI N, AKIRA O.Development of a lightweight deployable/storable radiator for interplanetary exploration[J].Applied Thermal Engineering, 2011(31): 3322-3331.
CULLIMORE B.Optimization, data correlation, and parametric analysis features in SINDA/Fluint version 4.0 [J].International Conference on Environmental Systems, 1998.
吴清文, 王领华, 杨献伟, 等.炭/炭复合材料在空间光学遥感器热控制中的应用[J].光学 精密工程, 2012, 20(9):1984-1990.
WU Q W, WANG L H, YANG X W et al..Application of carbon-carbon composites to thermal control of space optical instrument [J].Opt.Precision Eng., 2012, 20(9):1984-1990.(inChinese)
DAVID G.Gilmore.Spacecraft Thermal Control Handbook-Volume I:Fundamental Technologies 2ndEd[M].The Aerospace Press, El Segundo, CA, 90245-4691.
侯增祺, 胡金刚.航天器热控制技术—原理及其应用[M].北京:中国科学技术出版社, 2007.
HOU Z Q, HU J G.Spacecraft Thermal Control-Fundamentals and Application[M].Beijing:China Science & Technology Press, 2007.(in Chinese)
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