| 基于灰关联分析的热误差测点优化 |
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| 引用本文： | 卢晓红,贾振元,张智聪,于小艳.基于灰关联分析的热误差测点优化[J].组合机床与自动化加工技术,2011(2). |
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| 作者姓名： | 卢晓红 贾振元 张智聪 于小艳 |
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| 作者单位： | 1. 大连理工大学,精密与特种加工教育部重点实验室,辽宁,大连,116024
2. 大连高金数控集团有限公司,辽宁,大连,116620 |
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| 基金项目： | 高档数控机床与基础制造装备科技重大专项，辽宁省科学技术计划项目 |
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| 摘 要： | 针对影响机床热误差建模的机床温度场分布问题,提出了优化热关键点的新方法.借助于灰色系统理论的关联度分析方法,根据现场测得的统计数据序列,建立了灰关联分析模型,通过计算布置于机床上各个温度布点的温度传感器的温度采样序列值同机床定位误差之间的绝对灰色关联度值,最终从32个温度测点当中选择了4个点用于建立热误差补偿模型.最后基于四个测温关键点建模对Z轴的定位误差进行了补偿实验,结果证明补偿效果较好,所提出的热误差测点优化研究可以有效提高热误差模型的鲁棒性.
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| 关 键 词： | 数控机床 热误差 灰关联分析 建模 |
Optimization of Measuring Points for Machine Tool Thermal Error Modeling Based on Grey Relational Analysis Method |
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| LU Xiao-hong,JIA Zhen-yuan,ZHANG Zhi-cong,YU Xiao-yan.Optimization of Measuring Points for Machine Tool Thermal Error Modeling Based on Grey Relational Analysis Method[J].Modular Machine Tool & Automatic Manufacturing Technique,2011(2). |
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| Authors: | LU Xiao-hong JIA Zhen-yuan ZHANG Zhi-cong YU Xiao-yan |
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| Affiliation: | LU Xiao-hong,JIA Zhen-yuan,ZHANG Zhi-cong,YU Xiao-yan(1.Key Laboratory for Precision and Non-traditional Machining Technology of Ministry of Education,Dalian University of Technology,Dalian Liaoning 116024,China,2.Dalian Golden CNC Group CORP,Dalian Liaoning 116620,China) |
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| Abstract: | According to temperature distribution acting on machine tool thermal error modeling,a new method of optimization of thermal critical point is put forward in this paper.With relational analysis method of grey system theory,according to the statistical data sequence measured at site,a grey relational analysis model was established.Via calculating the absolute grey relational grade value between temperature sampling sequence value of temperature sensor arranged in different temperature distribution points on t... |
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| Keywords: | machine tool thermal error grey relational analysis modeling |
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