钢纤维增强树脂混凝土超精密磨床床身材料设计及综合性能优化分析  

Material Design and Comprehensive Performance Optimization Analysis of Ultra Precision Grinder Steel Fiber Reinforced Resin Concrete Bed

作　　者：乔雪涛[1] 李放 于贺春[1] 闫存富 许华威 QIAO Xuetao;LI Fang;YU Hechun;YAN Cunfu;XU Huawei(School of Mechanical&Electronic Engineering,Zhongyuan University of Technology,Zhengzhou Henan 450007,China)

机构地区：[1]中原工学院机电学院,河南郑州450007

出　　处：《机床与液压》2023年第16期58-66,共9页Machine Tool & Hydraulics

基　　金：河南省科技计划项目(212102210318,212102210276)。

摘　　要：为了探索提高机床床身综合性能的新途径,采用钢纤维增强树脂混凝土材料代替铸铁床身,通过“HORSFIELD最密堆积理论”、“贝雷法”以及排水法等理论确定钢纤维树脂混凝土组分质量分数,以优化其综合性能,并测试复合材料强度和阻尼性能参数。以铸铁床身为比对原型,设计了同款的钢纤维树脂混凝土床身新结构,借助于有限元软件对两种材料的床身进行了静、动态特性及轻质性分析和计算,并进行对比。结果表明:与铸铁床身相比,钢纤维树脂混凝土床身质量降低17.78%,最大整体变形和最大等效应力分别降低23%和76.83%,前6阶固有频率均有提升,在X、Y、Z三个方向最大振动幅值分别降低85.96%、68.49%、50.30%。以响应面优化方法对钢纤维树脂混凝土床身进行优化设计,与原设计方案相比,在保证床身轻量化的同时,其静、动态特性均有不同程度改善。In order to explore a new method to improve the comprehensive performance of the machine tool bed,steel fiber reinforced resin concrete was used to replace cast iron bed.Based on“HORSFIELD closest packing theory”combining with“Bailey method”and drainage method,the material mass fraction of steel fiber resin concrete components was determined to optimize its comprehensive performance,and composite strength and damping performance parameters were tested.A new structure of the same steel fiber resin concrete bed was designed with the cast iron bed as the comparison prototype.The static and dynamic characteristics and lightweight properties of the two material beds were analyzed and calculated with the finite element analysis software,and the two analysis results were contrasted.The results show that compared with the cast iron bed,the mass of the steel fiber resin concrete bed is reduced by 17.78%,the maximum global deformation and the maximum equivalent stress are reduced by 23%and 76.83%respectively;the first six natural frequencies are increased,and the maximum vibration amplitude in the X,Y and Z directions are reduced by 85.96%,68.49%and 50.30%,respectively.The response surface optimization method was used to optimize the design of the steel fiber resin concrete bed.Compared with the preliminary design scheme,the static and dynamic characteristics of the bed are improved to varying degrees while ensuring the lightweight of the bed.

关 键 词：钢纤维树脂混凝土 力学性能 阻尼性能 磨床床身 静动态特性 轻质性 

分 类 号：TG584[机械工程—精密仪器及机械]