On force and deformation of cantilever Y adjustment mechanism of target alignment sensor

Ya-nan ZHANG; Ling-ling JING; Han-yu ZHU; Lin-yong SHEN; Jin-wu QIAN

doi:10.3788/OPE.20182608.2030

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On force and deformation of cantilever Y adjustment mechanism of target alignment sensor

Micro/Nano Technology and Fine Mechanics | 更新时间：2020-08-13

- On force and deformation of cantilever Y adjustment mechanism of target alignment sensor
- Optics and Precision Engineering Vol. 26, Issue 8, Pages: 2030-2038(2018)
- 作者机构：
  
  上海大学机电工程与自动化学院, 上海 200072
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20182608.2030
  CLC： TH703;TH115
- Received：23 November 2017，
  
  Accepted：12 January 2018，
  
  Published：25 August 2018
- 稿件说明：
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Ya-nan ZHANG, Ling-ling JING, Han-yu ZHU, et al. On force and deformation of cantilever Y adjustment mechanism of target alignment sensor[J]. Optics and precision engineering, 2018, 26(8): 2030-2038.
DOI：

Ya-nan ZHANG, Ling-ling JING, Han-yu ZHU, et al. On force and deformation of cantilever Y adjustment mechanism of target alignment sensor[J]. Optics and precision engineering, 2018, 26(8): 2030-2038. DOI： 10.3788/OPE.20182608.2030.

摘要

靶准直器是惯性约束核聚变靶场中的重要部件，其在靶室中的位姿是保证靶定位瞄准精度的主要因素之一。为了实现微米级的定位瞄准精度，需要利用调整机构对靶准直器位姿进行调整。本文采取理论分析、有限元仿真和实验验证相结合的方法对靶准直器悬臂

向调整机构的受力变形和稳定性进行了研究。根据对

向调整机构的受力变形分析，得到结构受力变形的理论关系式，可从理论上优化

向调整机构的刚度和稳定性；基于有限元仿真对

向调整机构进行相应约束条件下的稳定性分析和结构优化；利用实验装置对靶准直器整体稳定性进行实验测试。实验结果表明：

向调整机构优化后，靶准直器静态

向变形由原来的7.9

m减小至小于2

m，动态稳定性满足系统2

m/2 h的稳定性要求。同时，试验、仿真和理论分析结果的变化趋势一致，验证了理论和仿真分析的正确性。

Abstract

The Target Alignment Sensor (TAS) was an important component of the Inertial Confinement nuclear Fusion (ICF) range

and its position in the target chamber was one of the main factors to ensure the accuracy of target positioning. In order to realize micro-level adjustment and positioning accuracy

it was necessary to use an appropriate mechanism to adjust the target alignment sensor. A method combining theoretical analysis

finite element simulation and experimental verification was adopted to study the deformation and stability of the y-adjusting mechanism. According to the stress deformation analysis of the y-adjusting mechanism

the theoretical relation of the structural stress deformation was obtained

and the stiffness and stability of the y-adjusting mechanism could be theoretically optimized. Deformation and stability analyses were conducted for the y-adjustment mechanism under certain constraints based on the finite element simulation. The experimental device was used to test the static stability of the target alignment sensor. The experimental results show that the y-deformation of the target alignment sensor is reduced from the original 7.9

m to less than 2

and the dynamic stability satisfies the stability requirement of 2

m/2 h. The experimental results depicted the same trend as the theoretical and finite element deformation analyses

which demonstrates the correctness of the theoretical and simulation analyses.

关键词

Keywords

references

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