机械动力学:2017,Vol:36,Issue(9):1388-1395
引用本文:
鞠家全, 邱自学, 任东, 刘传进, 刘志华. 采用灰色理论和组合赋权法的机床立柱设计与研究[J]. 机械科学与技术
Ju Jiaquan, Qiu Zixue, Ren Dong, Liu Chuanjin, Liu Zhihua. Design and Research for Column of Machining Tool using Grey Theory & Combination Weight[J]. Journal Of Remote Sensing

采用灰色理论和组合赋权法的机床立柱设计与研究
鞠家全1, 邱自学1, 任东2, 刘传进2, 刘志华2
1. 西安建筑科技大学机电工程学院, 西安 710055;
2. 西安永电电气有限责任公司, 西安 710016;
3. 西部超导材料科技股份有限公司, 西安 710018
摘要:
为提高机床立柱静动态性能,对机床立柱筋板结构进行设计,初步筛选出4种优选结构,然后以机床立柱筋板结构,筋板厚度、立柱起吊孔内径为试验因素,以立柱质量、最大耦合变形量、一阶固有频率、最大耦合应力为评估指标,设计了3因素4水平的正交试验。采用灰色关联法和组合赋权法处理有限元仿真数据,综合考虑主观因素与客观因素的影响,得到优化设计的最优参数组合。结果表明,立柱"十"型筋板结构,筋板厚20 mm,起吊孔内径180 mm是最佳参数组合,优化后,在最大耦合变形基本不变的情况下,立柱质量减轻了503 kg,最大耦合应力降低了6%,一阶固有频率也有所增加,轻量化效果显著,拓展了正交试验、组合赋权和灰色关联法的应用范围,为其它机床零部件的设计提供了有益的方法参考。
关键词:    机床立柱    设计    正交试验    组合赋权    灰色关联    筋板   
Design and Research for Column of Machining Tool using Grey Theory & Combination Weight
Ju Jiaquan1, Qiu Zixue1, Ren Dong2, Liu Chuanjin2, Liu Zhihua2
1. School of Mechanical and Electrical Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China;
2. Xi'an Yongdian Electric Co., Ltd., Xi'an 710016, China;
3. Western Superconducting Technologies Co., Ltd., Xi'an 710018, China
Abstract:
In order to improve the static and dynamic performance of machine tool column, the stiffened plate structure of column was designed, and four kinds of preferred structure were preliminarily screened out. Orthogonal test was designed with three levels and four factors, including the structure of stiffened plate, rib thickness, the diameter of column lifting hole and the weight, maximum coupling deformation, the first order frequency and maximum coupling stress are taken as evaluation indexes. Considering the objective and subjective factors, Gray correlation method and combination weighting method were used to get the optimal parameter combination. The results show that the best combination of parameters for column are the "十" type rib structure with rib plate thickness of 20 mm and lifting hole diameter of 180 mm. After optimized, the weight is reduced by 503 kg, the maximum stress is reduced by 6%, and the first natural frequency is increased, while the maximum deformation is substantially unchanged. The present study expands the applications of orthogonal test, grey correlation method and the combination weighting method, and it also provides a useful method for the design of other machine parts.
Key words:    machine tools    optimization    structural analysis    structural optimization    modal analysis    stiffness    multi-objective optimization    dynamics    finite element method   
收稿日期: 2016-05-15     修回日期:
DOI: 10.13433/j.cnki.1003-8728.2017.0913
基金项目: 江苏省科技成果转化专项资金项目(BA2015126)与南通市重大科技项目(XA2014011)资助
通讯作者: 邱自学(联系人),教授,博士,博士生导师,nqiuzx@163.com     Email:nqiuzx@163.com
作者简介: 鞠家全(1990-),硕士研究生,研究方向为机电装备及其测控技术,jujiaquan90@163.com
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