基于ANSYS的牛顿环应力变形分析及结构优化应用  

Stress Deformation Analysis and Structural Optimization of Newton’s Ring Based on ANSYS

作　　者：刘双燕 郭长立[1] LIU Shuangyan;GUO Changli(College of Science,Xi’an University of Science and Technology,Xi’an 710054,China)

机构地区：[1]西安科技大学理学院,西安710054

出　　处：《实验室研究与探索》2022年第9期112-119,共8页Research and Exploration In Laboratory

基　　金：中国学位与研究生教育学会项目(2020MSA200);陕西本科和高等继续教育教学改革研究项目(21BY059);西安科技大学教育教学改革与研究重点项目(JG21014)。

摘　　要：针对牛顿环应力变形难以测量的问题,利用ANSYS有限元法精确计算牛顿环光学玻璃中心变形量及应力值,得到牛顿环变形云图及等效应力云图。对于牛顿环结构中螺钉加力引起的应力变形情况,设计了一种5螺钉固定的牛顿环优化模型,应用ANSYS有限元法验证了优化模型的可行性及准确性,减小了应力变形引起的牛顿环测量误差。应用仿真变形量快速测量光学玻璃弯曲刚度值,在光学测量领域具有实际应用价值。仿真结果表明,优化模型中心变形量及应力值测量误差均有较大幅度的减小,加载载荷在12.5~40 N、60~70 N范围内可作为ANSYS有限元仿真计算光学玻璃弯曲刚度值的最佳应力区间。Aiming at the problem that the stress deformation is difficult to measure in Newton’s ring,the center deformation and stress value of Newton’s ring optical glass are calculated accurately by ANSYS finite element method,and the deformation and equivalent stress cloud of Newton’s ring are obtained.For the stress deformation caused by screw loading in Newton’s ring structure,an optimization model of Newton’s ring fixed by 5 screws is designed.The feasibility and accuracy of the optimization model are verified by ANSYS finite element method,and the measurement error of Newton’s ring caused by stress deformation is reduced.The simulation deformation is used to quickly measure the bending stiffness of optical glass,which has practical application value in optical measurement field.The simulation results show that the center deformation and stress measurement errors of the optimized model are greatly reduced,and the loading range of 12.5~40 N and 60~70 N can be used as the optimal stress range for ANSYS finite element simulation to calculate the bending stiffness of optical glass.

关 键 词：牛顿环 有限元分析 应力变形 弯曲刚度 

分 类 号：O439[机械工程—光学工程]