微V形槽玻璃元件模压成形有限元应力分析

发布时间：2018-02-09 21:41

本文关键词： 光学玻璃模压成形微V形槽应力分布填充效果　出处：《湖南大学学报(自然科学版)》2017年08期 　论文类型：期刊论文

【摘要】：针对微V形槽结构光学元件在模压后存在应力过大等问题,选取D-ZK3型低温光学玻璃,利用MSC.Marc软件建立了微V形槽的有限元仿真模型.采用5个单元的广义Maxwell模型来描述高温下D-ZK3玻璃的粘弹性特性,对V形槽结构在不同模压条件下的填充效果和应力分布进行了仿真研究分析.结果表明:V槽角度越大,填充效果越好,但最大应力也越大;模压速度增大将导致应力和模压力的增大;模压温度增大将导致最大应力的减小.
[Abstract]:In order to solve the problem of excessive stress after molding, D-ZK3 low-temperature optical glass is selected. The finite element simulation model of micro-V-groove is established by using MSC.Marc software. The viscoelastic properties of D-ZK3 glass at high temperature are described by using the generalized Maxwell model with five elements. The filling effect and stress distribution of V-groove structure under different moulding conditions are simulated and analyzed. The results show that the bigger the angle of the V-groove is, the better the filling effect is, but the greater the maximum stress is. The increasing of the molding speed will lead to the increase of the stress and the pressure of the die, and the increase of the molding temperature will lead to the decrease of the maximum stress.
【作者单位】：湖南大学汽车车身先进设计制造国家重点实验室;湘潭大学机械工程学院;
【基金】：国家自然科学基金资助项目(51275165)~~
【分类号】：TQ171.68

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