FRP制件修复用在位加工铣床的床身优化

宿友亮; 张南; 刘墨迪; 王春秀; 慕松

doi:10.13433/j.cnki.1003-8728.20190158

FRP制件修复用在位加工铣床的床身优化

doi: 10.13433/j.cnki.1003-8728.20190158

宁夏大学机械工程学院, 银川 750021

基金项目:

宁夏重点研发计划项目 2018BDE02047

宁夏高等学校科学研究项目 NGY2018018

国家自然科学基金项目 51865048

宁夏青年科技人才托举工程 TJGC2018092

宁夏自然科学基金 2018A0717

详细信息

作者简介:
宿友亮(1987-), 讲师, 博士研究生, 研究方向为先进复材加工与柔性制造技术, suyl@mail.dlut.edu.cn

通讯作者:
慕松, 副教授, 硕士生导师, Musong1972@163.com

中图分类号: V267⁺.42;TH122
计量
- 文章访问数: 128
- HTML全文浏览量: 67
- PDF下载量: 15
- 被引次数: 0
出版历程
- 收稿日期: 2019-04-26
- 刊出日期: 2020-04-05

Optimization Design of In-place-machining Tool Bed for FRPs Bonded Repair

School of Mechanical Engineering, Ningxia University, Yinchuan 750021, China

摘要

摘要: 内补片胶接技术是一种修复FRP制件缺陷、损伤的常用方法。工程中急需一种该方法中内凹阶梯结构的在位加工机床。此类薄壁弱刚性制件受压易变形。因此，对该机床床身进行轻量化设计，以减小受压变形对加工质量的影响。以某型在位加工机床原型机环形BFPC床身为研究对象，首先基于原型机工况分析，明确了床身的综合性能指标；采用拓扑优化技术，获得了最优拓扑的床身结构；进而，通过规则化结构参数，并设计正交实验，辨识了机床质量及综合性能的主要影响因素；最后，建立了以规则化结构参数为变量，床身质量及振幅最小为目标的多目标优化函数，获得了最优拓扑和最优性能的床身。
- FRP制件 /
- 内补片胶结 /
- 在位加工 /
- 床身 /
- 拓扑优化
Abstract: Inward-bonded Patch technology is a common method to repair Fiber Reinforce Plastics (FRPs) parts with the defect and damage. There is an urgent need for an in-place machining tool in the machining of concave step structure. Such thin-walled weakly rigid parts are easily deformed under the pressure. Therefore, the lightweight design of the machine bed to reduce the influence of the compression deformation on the machining quality. A ringed basalt fiber polymer composite (BFPC) bed of the prototype machine tool is taken as the research object. Firstly, the comprehensive performance of the bed under the working condition is defined based on the analysis via finite element method. Then, the optimal topology results of the bed are obtained by using the topology optimization technique. Furthermore, the main geometrical parameters that affect the mass and the comprehensive performance of the bed are identified based on the regularization of the topological structure and the orthogonal experiment method. Finally, a multi-objective optimization function with the regularization structure parameters as variables and the minimum mass of the bed and the minimum amplitude as objectives is established, and the optimal topology and performance are obtained.
- FRPs parts /
- inward-bonded patch /
- in-place machining /
- tool bed /
- topology optimization

HTML全文

图 1 内补式修复示意^[7]

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图 2 在位加工示意图

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图 3 床身有限元模型

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图 4 床身静力分析

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图 5 床身振型图

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图 6 优化前频响曲线

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图 7 初始优化模型

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图 8 拓扑优化结果

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图 9 设计因素示意图

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图 10 各因素变化率分析

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图 11 设计变量响应曲面

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图 12 优化后静力分析

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图 13 优化后振型云图

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图 14 优化后频响曲线

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表 1 实验条件

每齿进给量/(mm·z^-1)	切深/mm	切削力/N	铣削方式	文献
0.1~0.25(轴向)/0.01~0.025(径向)	1/3/5	151~463	螺旋铣	^[16]
0.05	1	25~50	侧铣	^[17]
0.05	1	44~180	铣槽	^[18]
0.01(轴向)/0.007(径向)	/	156~164	螺旋铣	^[19]

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表 2 导轨所受力矩

M_YOZ	M_XOZ	M_XOY
200 N·m	180 N·m	300 N·m

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表 3 设计因素水平 mm

水平	P₁	P₂	P₃	P₄	P₅	P₆	P₇	P₈	P₉	P₁₀	P₁₁	P₁₂	P₁₃
1	30	50	67	53	12	25	88	122	10	107	40	60	60
2	33	55	72	58	17	30	93	127	15	112	45	65	65
3	36	60	77	63	22	35	98	132	20	117	50	70	70

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表 4 设计变量优化结果 mm

P₁	P₂	P₇	P₁₀	P₁₂	P₁₃
58	70	90	125	15	65

下载: 导出CSV

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