气浮转台转子结构参数对变形的影响研究及优化设计  

Study on the Influence of Rotor Structure Parameters on Deformation and its Optimal Design of the Pneumatic Levitation Platform

作　　者：杨康宁 龚伟[1] 刘有海 阳红 YANG Kang-ning;GONG Wei;LIU You-hai;YANG Hong(School of Manufacturing Science and Engineering,Southwest University of Science and Technology,Sichuan Mianyang 621010,China;China Institute of Nuclear Physics Engineering,Institute of Mechanical Design and Manufacturing,Sichuan Mianyang 621900,China)

机构地区：[1]西南科技大学制造科学与工程学院,四川绵阳621010 [2]中国核物理工程研究院机械设计与制造工艺研究所,四川绵阳621900

出　　处：《机械设计与制造》2021年第6期245-248,共4页Machinery Design & Manufacture

基　　金：国家“高档数控机床与基础制造装备”科技重大专项(2017zx04022001);中物院超精密加工技术重点实验室基金(ZD17002)。

摘　　要：为了减小气浮转台在加工尺寸较大的零件时的变形,对转子的各几何参数进行了灵敏度分析。首先了利用Workbench中Static Structural分析出初始设计尺寸下气浮转台的变形量以及应力大小,然后再利用响应曲面优化分析工具(Response Surface)求出所有几何设计尺寸对气浮转台变形量的灵敏度的大小,选出灵敏度较大的尺寸进行优化设计,并最终确定了一组最佳尺寸。对优化后的尺寸进行有限元分析,其变形量得到了明显的减小,最大变形量由13.02μm下降到了2.98μm,最小变形量由10.39μm下降到了0.55μm。In order to reduce the deformation of the air-floated turntable when processing large-sized parts,the deformation and stress of the air-floated turntable under initial design variables are analyzed by Static Structural in workbench.Then the sensitivity of all geometric dimensions to the deformation of the air-floated turntable is obtained by response surface optimization analysis tool,and the sensitivity is selected.Large sizes are optimized and a set of optimum sizes are finally determined.Finite element analysis of the optimized dimensions shows that the deformation is reduced significantly,the maximum deformation decreased from 13.02μm to 2.98μm,and the minimum deformation decreased from 10.39μm to 0.55μm.

关 键 词：气浮转台 灵敏度 响应曲面优化分析工具 优化设计 有限元分析 

分 类 号：TH16[机械工程—机械制造及自动化] TH153