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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 100049
[ "王志臣(1980-),男,黑龙江大兴安岭人,副研究员,2003年、2007年于哈尔滨工业大学分别获得学士、硕士学位,主要从事地基大口径望远镜光机结构方面的研究。E-mail: zcwang911@163.com" ]
[ "陈 涛(1965-),男,内蒙古赤峰人,博士,研究员,博士生导师,2007年于中国科学院长春光学精密机械与物理研究所获得博士学位,主要从事光电跟踪伺服控制技术与光电测控系统总体技术的研究。E-mail:chent@ciomp.ac.cn" ]
收稿日期:2022-09-28,
修回日期:2022-11-05,
纸质出版日期:2022-12-10
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王志臣,陈涛,曹玉岩等.大口径望远镜中间体拓扑优化及形位公差检测[J].光学精密工程,2022,30(23):3039-3044.
WANG Zhichen,CHEN Tao,CAO Yuyan,et al.Design and geometrical tolerance detection of center section of large-aperture telescope[J].Optics and Precision Engineering,2022,30(23):3039-3044.
王志臣,陈涛,曹玉岩等.大口径望远镜中间体拓扑优化及形位公差检测[J].光学精密工程,2022,30(23):3039-3044. DOI: 10.37188/OPE.20223023.3039.
WANG Zhichen,CHEN Tao,CAO Yuyan,et al.Design and geometrical tolerance detection of center section of large-aperture telescope[J].Optics and Precision Engineering,2022,30(23):3039-3044. DOI: 10.37188/OPE.20223023.3039.
为了满足大口径望远镜中间体高刚度、低惯量的技术需求,开展了中间体的轻量化设计,同时针对传统方法无法检测中间体形位公差的问题,提出基于自准直仪和激光跟踪仪的光学检测方法。根据望远镜整体结构需求,确定中间体尺寸范围,分析力的传递路径,以应变能最小为优化目标,采用变密度法进行拓扑优化分析和结构设计。基于自准直仪测角原理,在中间体轴孔端面吸附平面反射镜,测量两端面的反射角度,实现两侧轴孔端面平行度误差的测量,基于激光跟踪仪空间点坐标测量原理,利用回转工装寻找中间体轴孔圆心,测量两侧轴孔的圆心坐标,实现同轴度误差的测量。与传统经验设计的中间体相比,以拓扑优化为指导设计的中间体质量减少21.5%,静态刚度提高14.3%。光学法检测中间体两侧轴孔端面平行度误差为0.016 mm,两侧轴孔圆心位置偏差为0.03 mm。采用拓扑优化设计的中间体在提高刚度、降低惯量方面优势明显,提出的光学检测法可实现中间体形位公差的检测。
To satisfy the requirements of high stiffness and low inertia of the center section of a large aperture telescope, a lightweight center section is designed. Further, because the traditional method cannot detect the geometric tolerance of the center section, an optical detection method based on an autocollimator and laser tracker is proposed. According to the requirements of the overall structure of the telescope, the size range of the center section is determined, and the transmission path of the force is analyzed. The topology optimization analysis and structure design are carried out using the variable density method to minimize strain energy. Based on the angle measurement principle of the autocollimator, the reflecting mirror is placed on the face of the center section hole to measure the parallelism error of the face on both sides. Based on the position measurement principle of the laser tracker, a high-precision turntable is used to find the central point of the center section hole. Then, the central point coordinates of holes on both sides are measured, and the coaxiality error is measured. Compared with the center section designed by traditional means, the mass of the center section designed under the guidance of topology optimization is reduced by 21.5%, and the static stiffness is increased by 14.3%. The parallelism error of the faces of the holes on both sides of the center section detected by the optical method is 0.016 mm, and the concentric error of the holes on both sides is 0.03 mm. The center section designed by topology optimization has obvious advantages in improving stiffness and reducing inertia. The detection of geometric tolerance of the center section can be realized by using the proposed optical detection method, which solves the detection problems in processing.
BELY P Y . The Design and Construction of Large Optical Telescopes [M]. New York : Springer New York , 2003 .
曹玉岩 , 王建立 , 王志臣 , 等 . 基于二维随机场的地基大型光学望远镜风扰动时程模拟与性能预测 [J]. 光学 精密工程 , 2022 , 30 ( 4 ): 442 - 454 . doi: 10.37188/OPE.20223004.0442 http://dx.doi.org/10.37188/OPE.20223004.0442
CAO Y Y , WANG J L , WANG ZH CH , et al . Wind disturbance simulation and optical performance prediction for large ground-based optical telescopes based on two-dimensional stochastic fields [J]. Optics and Precision Engineering , 2022 , 30 ( 4 ): 442 - 454 . (in Chinese) . doi: 10.37188/OPE.20223004.0442 http://dx.doi.org/10.37188/OPE.20223004.0442
VUKOBRATOVICH D . Introduction to Opto-Mechanical Design [M]. New York : McGraw-Hill , 1991
LIU S T , HU R , LI Q H , et al . Topology optimization-based lightweight primary mirror design of a large-aperture space telescope [J]. Applied Optics , 2014 , 53 ( 35 ): 8318 - 8325 .
QU Y J , JIANG Y R , FENG L J , et al . Lightweight design of multi-objective topology for a large-aperture space mirror [J]. Applied Sciences , 2018 , 8 ( 11 ): 2259 .
罗致帮 , 李巍 , 徐佳坤 , 等 . 临近空间816 mm口径望远镜复合支撑主镜组件设计 [J]. 光学 精密工程 , 2021 , 29 ( 3 ): 558 - 570 . doi: 10.37188/OPE.20212903.0558 http://dx.doi.org/10.37188/OPE.20212903.0558
LUO ZH B , LI W , XU J K , et al . Design of primary mirror assembly with compound support for Φ816 mm near space telescope [J]. Opt. Precision Eng. , 2021 , 29 ( 3 ): 558 - 570 . (in Chinese) . doi: 10.37188/OPE.20212903.0558 http://dx.doi.org/10.37188/OPE.20212903.0558
PARK K S , LEE J H , YOUN S K . Lightweight mirror design method using topology optimization [J]. SPIE , 2005 : 053002 .
刘书田 , 胡瑞 , 周平 , 等 . 基于筋板式基结构的大口径空间反射镜构型设计的拓扑优化方法 [J]. 光学 精密工程 , 2013 , 21 ( 7 ): 1803 - 1810 . doi: 10.3788/OPE.20132107.1803 http://dx.doi.org/10.3788/OPE.20132107.1803
LIU SH T , HU R , ZHOU P , et al . Topologic optimization for configuration design of web-skin-type ground structure based large-aperture space mirror [J]. Optics and Precision Engineering , 2013 , 21 ( 7 ): 1803 - 1810 . (in Chinese) . doi: 10.3788/OPE.20132107.1803 http://dx.doi.org/10.3788/OPE.20132107.1803
付世欣 , 周超 , 曹玉岩 , 等 . 基于拓扑优化的4 m望远镜底座结构设计 [J]. 红外与激光工程 , 2015 , 44 ( 8 ): 2441 - 2447 .
FU SH X , ZHOU CH , CAO Y Y , et al . Structural design of 4 m telescope mount base based on topology optimization method [J]. Infrared and Laser Engineering , 2015 , 44 ( 8 ): 2441 - 2447 . (in Chinese)
HUANG X , XIE Y M . Evolutionary Topology Optimization of Continuum Structures [M]. New York : Wiley , 2010 .
陈卓 , 胡庆龙 , 李朝辉 . 基于碳纤维框架天基目标探测二维跟踪转台结构优化 [J]. 光学 精密工程 , 2021 , 29 ( 3 ): 547 - 557 . doi: 10.37188/OPE.20212903.0547 http://dx.doi.org/10.37188/OPE.20212903.0547
CHEN ZH , HU Q L , LI ZH H . Structural optimization of 2-D tracking turntable with carbon fiber framework for spatial target detection [J]. Optics and Precision Engineering , 2021 , 29 ( 3 ): 547 - 557 . (in Chinese) . doi: 10.37188/OPE.20212903.0547 http://dx.doi.org/10.37188/OPE.20212903.0547
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