Ascertainment of operating posture of KDP crystal supporting system

Rui-feng SU; Xiao-juan CHEN; Ming-zhi ZHU; Wen-kai WU; Zhan HUANG; Bao-xu WANG

doi:10.3788/OPE.20172503.0632

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Ascertainment of operating posture of KDP crystal supporting system

更新时间：2020-07-07

- Ascertainment of operating posture of KDP crystal supporting system
- Optics and Precision Engineering Vol. 25, Issue 3, Pages: 632-640(2017)
- 作者机构：
  
  中国工程物理研究院总体工程研究所, 四川绵阳 621900
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20172503.0632
  CLC： TL632.1;TH122
- Received：10 October 2016，
  
  Accepted：25 November 2016，
  
  Published：25 March 2017
- 稿件说明：
移动端阅览
Rui-feng SU, Xiao-juan CHEN, Ming-zhi ZHU, et al. Ascertainment of operating posture of KDP crystal supporting system[J]. Optics and precision engineering, 2017, 25(3): 632-640.
DOI：

Rui-feng SU, Xiao-juan CHEN, Ming-zhi ZHU, et al. Ascertainment of operating posture of KDP crystal supporting system[J]. Optics and precision engineering, 2017, 25(3): 632-640. DOI： 10.3788/OPE.20172503.0632.

摘要

为了确定一个KDP晶体支撑系统的合理工作姿态，研究了工作姿态对支撑系统变形、KDP晶体偏转和激光束入射角的影响。首先，提出了关键刚度分量的概念，并采用这一概念对不同工作姿态时支撑系统在重力作用下的变形进行了理论分析。其次，采用有限元方法计算了重力作用下支撑系统的变形，以及由此引起KDP晶体的偏转和激光束入射角的变化。最后，对不同工作姿态时支撑系统的变形、KDP晶体的偏转和激光束入射角的变化进行比较，并分析了关键刚度分量的影响。数值计算结果表明，受关键刚度分量的影响，不同工作姿态下支撑系统的变形、引起KDP晶体的偏转和激光束入射角的变化不同。支撑系统为最优工作姿态时，激光束入射角的变化达到最小值76

rad。这一结果满足KDP晶体支撑系工作姿态确定的相关要求。

Abstract

With the aim to investigate optimum operating postures of the supporting system of a KDP crystal

the influence of operating posture on the gravity-induced distortion of the supporting system

as well as the deflection of the KDP crystal and the incident angle change of the laser beam due to the distortion were studied. A concept of key stiffness component was proposed to theoretically analyze the gravity-induced distortion of the supporting system on the occasion of various operating postures. Using the finite element method

the gravity-induced distortions of the supporting system with different operating postures

the induced deflection of the KDP crystal and the incident angle change of the laser beam were calculated and then compared

thus the influence of the key stiffness components were figured out. The numerical results show that under the function of the key stiffness components

the distortion of the supporting system

the deflection of the KDP crystal and the induced incident angle change vary with the operating postures

and the minimum incident angle change is 76

rad when the supporting system operates under the optimum operating posture. Hence

the optimum result meets the requirement for ascertainment of the operating posture of KDP crystal supporting systems.

关键词

Keywords

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