An optimal design of baffles for circumferential scan turntable laser communication

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Journal of Vibration and Shock ›› 2019, Vol. 38 ›› Issue (4) : 110-114.

JIA Mei1,2,LI Xiaoming2，WANG Guibing1,2,TAO Tianqi1,2,ZHANG Lizhong1,2,3

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Abstract

The circumferential scanning and tracking system used for small satellite laser communication is installed outside the satellite,and it is subjected to huge impact load during the process of satellite launching and rising.The hood connected with the locking mechanism is a key component of optical locking,the stiffness and strength of the structure directly affects the reliability of the whole machine.This paper is based on the characteristics of the circumferential laser communication system.First,the external constraints of the hood were analyzed and calculated.Under the premise of ensuring the mechanical requirements,we optimized the design of the hood by combining topology optimization and free size optimization,so as to reduce the weight of the hood.The analysis shows that the quality of the hood is reduced by 17.08%,the maximum stress and the maximum strain are reduced by 45.45% and 54.93%,respectively,and the first three order modes are also significantly improved,which improves the usability of the hood and the reliability of the whole machine.

Key words

Laser communication / Circumferential shape / Topological optimization / Free size optimization

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JIA Mei1,2,LI Xiaoming2，WANG Guibing1,2,TAO Tianqi1,2,ZHANG Lizhong1,2,3. An optimal design of baffles for circumferential scan turntable laser communication[J]. Journal of Vibration and Shock, 2019, 38(4): 110-114

References

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朱能兵. 轻量化反射镜支撑结构设计研究[D].中国科学院大学(中国科学院光电技术研究所),2017.
[1] JIANG Hui-lin,TONG Shou-feng. Space laser communication technology and system[M].Beijing: Higher Education Press,2010.
姜会林，佟首峰.空间激光通信技术与系统[M].北京：高等教育出版社，2010.
[2] Miller E D,Despenza M,Gavirlyuk I,et al.A prototype coarse pointing mechanism for laser communication[C]. Free-Spacel Laser Communication and Atmospheric Propagation XXIX. International Society for Optics and Photonics, 2017.
[3] G Székely;A Coarse Pointing Assembly for Optical Communication[C].Proceedings of the 40th Aerospace Mechanisms Symposium, NASA Kennedy Space Center;2010
[4] TAN Li-ying,WU Shi-chen,HAN Qi-qi,MA Jing.CCD coarse tracking of periscope satellite optical communicationterminal[J].Optics and Precision Engineering,2012,20(02):270-27.
谭立英,吴世臣,韩琦琦,马晶.潜望镜式卫星光通信终端的CCD粗跟踪[J].光学精密工程,2012,20(02):270-27.
[5] SONG Fei,XIAO Fang-ming. Surface modification design and performance study of AZ91D alloy for automotive engine.[J]. Hot Working Technology, 2017,46(22):184-188.
宋飞,肖方明.汽车发动机用AZ91D合金的表面改性设计与性能研究[J].热加工工艺,2017,46(22):184-188.
[6] ZANG Yu-bi,LI De-jiang,HU Bin,ZENG Xiao-qin. Effect of vacuum degree on microstructure and mechanical properties of AZ91D magnesium alloy[J]. Special Casting & Nonferrous Alloys,2016,36(01):52-55.
张钰笔,李德江,胡斌,曾小勤.真空度对压铸AZ91D镁合金组织和力学性能的影响[J].特种铸造及有色合金,2016,36(01):52-55.
[7] WU Guo-hua,CHEN Yu-shi,DING Wen-jiang. Application status and prospect of magnesium alloy in aerospace field[J]. Human Spaceflight, 2016,22(03):281-292.
吴国华,陈玉狮,丁文江.镁合金在航空航天领域研究应用现状与展望[J].载人航天,2016,22(03):281-292.
[8] HONG Qing-quan,ZHAO Kang,ZHANG Pan.OptiStruct and Hyperstudy Theoretical foundation and engineering application[M].Beijing: China Machine Press,2012洪清泉，赵康，张攀.OptiStruct&Hyperstudy理论基础与工程应用[M].北京：机械工业出版社，2012.
[9] ZHANG Lei,KE Shan-liang,LI Lin,JIA Xue-zhi,DU Yi-min. Ф210mm Ultrathin super light SiC reflector multi-objective integrated optimization design.[J]. Acta Photonica Sinica,2017,46(12):89-97.张雷,柯善良,李林,贾学志,杜一民.Ф210mm超薄超轻SiC反射镜多目标集成优化设计[J].光子学报,2017,46(12):89-97.
[10] LI Xiong,WU Bin,LI Chang-ran. The finite element analysis and improvement design of high - altitude operation suspension platform based on topological optimization[J]. CMTM, 2017,30(11):64-67.
李雄,吴斌,李昌冉.基于拓扑优化的高空作业吊篮悬吊平台有限元分析及改进设计[J].建设机械技术与管理,2017,30(11):64-67.
[11] SHI Su-hua. Optimization design of hanging beam structure of hanging equipment under subway vehicles[J]. Mechatronics, 2017,23(04):45-49+63.
施素烨.地铁车辆下吊设备吊挂梁结构优化设计[J].机电一体化,2017,23(04):45-49+63.
[12] ZHU Lu-ming. Composite wing structure topology size joint optimization design[D]. Zhejiang University,2017.
朱路明. 复合材料机翼结构拓扑—尺寸联合优化设计[D].浙江大学,2017.
[13] LAN Bin,YANG Hong-bo,WU Xiao-xia,WANG Fu-guo,GUO Peng. Optimized design of mirror component of Ф620mm aperture foundation[J]. Infrared&Laser Engineering,2017,46(01):198-206.
兰斌,杨洪波,吴小霞,王富国,郭鹏.Ф620mm口径地基反射镜组件优化设计[J].红外与激光工程,2017,46(01):198-206.
[14] LIU Wei-da,MENG Li-xin,ZHANG Shu-ren,ZHANG Li-zhong.Optimization design of main mirror component of GEO laser communication system[J]. Infrared&Laser Engineering, 2016,45(12):354-360.
刘伟达,孟立新,张树仁,张立中.GEO激光通信系统主镜组件优化设计[J].红外与激光工程,2016,45(12):354-360.
[15] LI Zong-xuan.Analysis and experiment of random vibration response of main mirror component flexible link[J].Infrared&LaserEngineering, 2014,43(S1):101-107.
李宗轩.主反射镜组件柔性环节随机振动响应分与试验[J].红外与激光工程,2014,43(S1):101-107.
[16] ZHU Nengbing.Study on the structure design of lightweight reflector[D]. Institute of photoelectric technology, Chinese academy of sciences,2017.
朱能兵. 轻量化反射镜支撑结构设计研究[D].中国科学院大学(中国科学院光电技术研究所),2017.