Stability design of switchyard in SGⅢ facility

WANG Mei-cong; CHEN Gang; HUANG Zhan; CHEN Xiao-juan; WU Wen-kai; WANG Jun; ZHU Ming-zhi

doi:10.3788/OPE.20111911.2664

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Stability design of switchyard in SGⅢ facility

Article | 更新时间：2020-08-12

- Stability design of switchyard in SGⅢ facility
- Optics and Precision Engineering Vol. 19, Issue 11, Pages: 2664-2670(2011)
- 作者机构：
  
  中国工程物理研究院总体工程研究所,四川绵阳,621999
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20111911.2664
  CLC： TL632.1
- Received：10 January 2011，
  
  Revised：11 March 2011，
  
  Published Online：25 November 2011，
  
  Published：25 November 2011
- 稿件说明：
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王美聪, 陈刚, 黄湛, 陈晓娟, 吴文凯, 王军, 朱明智. 神光Ⅲ主机装置编组站稳定性设计[J]. 光学精密工程, 2011,19(11): 2664-2670

WANG Mei-cong, CHEN Gang, HUANG Zhan, CHEN Xiao-juan, WU Wen-kai, WANG Jun, ZHU Ming-zhi. Stability design of switchyard in SGⅢ facility[J]. Editorial Office of Optics and Precision Engineering, 2011,19(11): 2664-2670
王美聪, 陈刚, 黄湛, 陈晓娟, 吴文凯, 王军, 朱明智. 神光Ⅲ主机装置编组站稳定性设计[J]. 光学精密工程, 2011,19(11): 2664-2670 DOI： 10.3788/OPE.20111911.2664.

WANG Mei-cong, CHEN Gang, HUANG Zhan, CHEN Xiao-juan, WU Wen-kai, WANG Jun, ZHU Ming-zhi. Stability design of switchyard in SGⅢ facility[J]. Editorial Office of Optics and Precision Engineering, 2011,19(11): 2664-2670 DOI： 10.3788/OPE.20111911.2664.

摘要

为使神光Ⅲ主机装置的打靶精度达到30 m

本文以稳定性指标为前提设计了该装置的靶场编组站

并对编组站刚架和传输反射镜组件进行了优化。采用钢筋混凝土结构支撑编组站刚架

在编组站刚架主框架内增加斜撑

以减小并合理分布编组站刚架的质量载荷

同时对局部的横梁增加人字形斜撑。设计了反射镜架且使其基频远高于编组站刚架基频以抑制编组站反射镜在随机宽频振动激励下的角度漂移。对靶场结构有限元(FEA)模型的力学分析表明

编组站中87％的传输反射镜的角度漂移低于0.48 rad

根据靶场系统中各元件漂移对光路定位误差的影响公式进行分析

结果显示编组站反射镜角度漂移可以满足靶场各单条光路定位误差不超过12.9 m的稳定性指标

证明所设计的神光III主机装置编组站可以满足相应的稳定性要求。

Abstract

To assure the pointing accuracy in a shooting target to be better than 30 m for the Shen Guang Ⅲ(SGⅢ)facility

the switchyard of target area for the facility was designed and the rigid frame and transport mirrors in the switchyard were optimized to improve their stability. In design

the reinforced concrete was used to support the switchyard

and the tilted supports were added in the steel frame of switchyard to decrease and distribute the mass load reasonably.Furthermore

the herringbone supports were firmed to local horizontal beams. The transport mirror supports were also designed

in which their foundational frequencies were much higher than that of the swichyard. By above ways

the angle shifts of transmission mirrors in random broadband vibration can be suppressed successfully. The mechanical analysis of range structure by Finite Element Analysis(FEA) indicates that 87% of transport mirrors show their angle shifts less than 0.48 rad. According to the relation between the rotation drifts of the optics components and the positioning errors of optical path

it can be seen that the rotation drifts of the transmission mirrors could meet the stability requirements for the positioning error of each single optical path not more than 12.9 m.

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references

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