A parametric structure model has been established using FEA software ANSYS for an aspherical primary reflector with lightening sector holes. With some structural parameters having significant effect on mechanical properties of reflector
such as thickness of reflector
and location and size of sector hole
used as design variables
and feasible domains established in accordance with reflector machining and assembly processes for these design variables
an optimal design is done for the structure of a reflector using the zero-order optimization method provided in the Design Opt module of ANSYS. Mechanic analyses show that the optimized structure of the reflector is much lighter and stronger than the original design.
关键词
Keywords
references
郭喜庆,王悦勇. 大口径反射镜几种轻量化孔结构形式的分析[J]. 光学精密工程,2000,8(6):518-521.GUO X Q, WANG Y Y. Analysis of structural forms of lightweight hole for heavy-caliber mirror[J]. Optics and Precision Engineering, 2000,8(6):518-521.(in Chinese)
吴清文.空间相机中主镜的轻量化技术及其应用[J]. 光学精密工程,1997,5(6):69-80.WU Q W. Light weight technology and its application of primary mirror in space camera[J]. Optics and Precision Engineering, 1997,5(6):69-80.(in Chinese)
宋友贵,陈玲,田守信,等. 反射镜体轻化结构设计的对比研究[J].兵工学报,2000,21(2):137-139.SONG Y G, CHEN L, TIAN SH X,et al. A comparative study on lightweighted mirror structure design[J]. Acta Armanentarii, 2000,21(2):137-139.(in Chinese)
齐亚范,方敬忠. 轻型反射镜研究与发展[J]. 光学技术,1998,(3):49-52.QI Y F, FANG J ZH. Investigated and development of lightweight mirror[J]. Optical Technology, 1998,(3):49-52.(in Chinese)
吴清文,卢锷. 自重作用下中心支撑主反射镜面形变化研究[J]. 光学精密工程,1996,4(4):23-28.WU Q W, LU E. Study on the surface figure changes of primary mirror centerally supported under gravity load[J]. Optics and Precision Engineering, 1996,4(4):23-28.(in Chinese)
丁福建,李英才. 反射镜浮动支撑的应力与变形分析及支撑参数的优化[J]. 光子学报,1998,27(11):1041-1045.DING F J, LI Y C. The stress and strain analysis of main reflector with uniform pressure support and support angle optimization[J]. Acta Photonica Sinica, 1998,27(11):1041-1045.(in Chinese)
叶露,王肇勋. 大口径长焦距平行光管主反射镜支撑与调整机构的研究[J]. 光学精密工程,2000,8(5):462-465.YE L, WANG ZH X. Supporting and adjusting for collimator primary with large-aperture and long-focal length[J]. Optics and Precision Engineering, 2000,8(5): 462-465.(in Chinese)