Hybrid optimization methodology of variable densities mesh model for the axial supporting design of wide-field survey telescope
文献类型：期刊论文
| 作者 | Wang, Hairen1,2 ; Lou, Zheng1,2; Qian, Yuan1,2; Zheng, Xianzhong1,2; Zuo, Yingxi1,2
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| 刊名 | OPTICAL ENGINEERING
 |
| 出版日期 | 2016-03-01 |
| 卷号 | 55期号:3 |
| 关键词 | hybrid optimization methodology variable densities mesh model axial support optimization primary mirror zero-order optimization method first-order optimization method |
| 英文摘要 | The optimization of a primary mirror support system is one of the most critical problems in the design of large telescopes. Here, we propose a hybrid optimization methodology of variable densities mesh model (HOMVDMM) for the axial supporting design, which has three key steps: (1) creating a variable densities mesh model, which will partition the mirror into several sparse mesh areas and several dense mesh areas; (2) global optimization based on the zero-order optimization method for the support of primary mirror with a large tolerance; (3) based on the optimization results of the second step, further optimization with first-order optimization method in dense mesh areas by a small tolerance. HOMVDMM exploits the complementary merits of both the zero-and first-order optimizations, with the former in global scale and the latter in small scale. As an application, the axial support of the primary mirror of the 2.5-m wide-field survey telescope (WFST) is optimized by HOMVDMM. These three designs are obtained via a comparative study of different supporting points including 27 supporting points, 39 supporting points, and 54 supporting points. Their residual half-path length errors are 28.78, 9.32, and 5.29 nm. The latter two designs both meet the specification of WFST. In each of the three designs, a global optimization value with high accuracy will be obtained in an hour on an ordinary PC. As the results suggest, the overall performance of HOMVDMM is superior to the first-order optimization method as well as the zero-order optimization method. (C) 2016 Society of Photo-Optical Instrumentation Engineers (SPIE) |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Optics |
| 研究领域[WOS] | Optics |
| 关键词[WOS] | PRIMARY MIRROR ; ACTIVE OPTICS ; DEFLECTION |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000372718100017 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/16177]  |
| 专题 | 紫金山天文台_毫米波和亚毫米波技术实验室 |
| 作者单位 | 1.Chinese Acad Sci, Purple Mt Observ, 2 West Beijing Rd, Nanjing 210008, Jiangsu, Peoples R China 2.Chinese Acad Sci, Key Lab Radio Astron, 2 West Beijing Rd, Nanjing 210008, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Hairen,Lou, Zheng,Qian, Yuan,et al. Hybrid optimization methodology of variable densities mesh model for the axial supporting design of wide-field survey telescope[J]. OPTICAL ENGINEERING,2016,55(3). |
| APA | Wang, Hairen,Lou, Zheng,Qian, Yuan,Zheng, Xianzhong,&Zuo, Yingxi.(2016).Hybrid optimization methodology of variable densities mesh model for the axial supporting design of wide-field survey telescope.OPTICAL ENGINEERING,55(3). |
| MLA | Wang, Hairen,et al."Hybrid optimization methodology of variable densities mesh model for the axial supporting design of wide-field survey telescope".OPTICAL ENGINEERING 55.3(2016). |
入库方式： OAI收割
来源：紫金山天文台
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