干涉式大气垂直探测仪中面弹簧的有限元分析

陶津平; 华建文; 代作晓; 王模昌

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干涉式大气垂直探测仪中面弹簧的有限元分析

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- 干涉式大气垂直探测仪中面弹簧的有限元分析
- Finite element analysis of diaphragm flexure in atmospheric sounding interferometer
- 光学精密工程 2006年14卷第1期页码：100-110
- 作者机构：
  
  中国科学院上海技术物理研究所,上海 200083
- 作者简介：
- 基金信息：
- DOI：
  中图分类号： TP73.2;TH765.81
- 收稿日期：2005-10-22，
  
  修回日期：2005-12-08，
  
  网络出版日期：2006-02-20，
  
  纸质出版日期：2006-02-20
- 稿件说明：
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陶津平, 华建文, 代作晓, 等. 干涉式大气垂直探测仪中面弹簧的有限元分析[J]. 光学精密工程, 2006,14(1):100-110.

TAO Jin-ping, HUA Jian-wen, DAI Zuo-xiao, et al. Finite element analysis of diaphragm flexure in atmospheric sounding interferometer[J]. Optics and precision engineering, 2006, 14(1): 100-110.
陶津平, 华建文, 代作晓, 等. 干涉式大气垂直探测仪中面弹簧的有限元分析[J]. 光学精密工程, 2006,14(1):100-110. DOI：

TAO Jin-ping, HUA Jian-wen, DAI Zuo-xiao, et al. Finite element analysis of diaphragm flexure in atmospheric sounding interferometer[J]. Optics and precision engineering, 2006, 14(1): 100-110. DOI：

摘要

面弹簧是干涉式大气垂直探测仪中的精密部件

系统要求其在工作过程中具有较大刚度比和足够的轴向行程。利用有限元分析方法对面弹簧进行了优化设计。通过对比不同缝形面弹簧在轴向拉伸过程中的轴向刚度、径向刚度、刚度比

确定了螺旋缝形是相对最优缝形。进一步对螺旋缝形面弹簧做了系统分析

得到了螺旋缝形面弹簧中的基圆半径、螺距、旋转角度、指数、直径、开缝数、簧片厚度、材料的杨氏模量等参数在面弹簧轴向拉伸过程中

对其轴向刚度、径向刚度、刚度比的影响规律。根据有限元分析结果最终确定一组最优参数值

20mm

=20／π

mm/rad

=πrad



=200mm

=0.2mm

=1.3 e11Pa

并据此加工成实物。对实物的实测结果表明

螺旋缝形面弹簧具有的轴向行程和较大的刚度比达到了设计目标

验证了有限元分析结果的准确性和合理性。

Abstract

A diaphragm flexure was designed with the finite element analysis method. By comparing different slit-shape diaphragm flexures' axial stiffness coefficient

radial stiffness coefficient and stiffness ratio in the course of elongating

the spiral slit-shape diaphragm flexure was selected. Furthermore

the influences of spiral slit-shape diaphragm flexure's base circle radius

screw-pitch

rotate angle

index

diameter

number of slits

thickness and elasticity modulus of material on axial stiffness coefficient

radial stiffness coefficient and stiffness ratio were analyzed. The best set of parameters(

=20

=20/π

mm/rad

=πrad

b=2



=200mm

n=3

=0.2mm

=1.3e11Pa)based on the finite element analysis results were chosen and a pair of spiral slit-shape diaphragm flexures was made. Measurement results show that the spiral slit-shape diaphragm flexure has elongation in axial direction and large stiffness ratio

which has satisfied the design objectives and confirmed the veracity and rationality of the finite element analysis as well.

关键词

Keywords

references

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