| 高速卧式镗铣加工中心立柱动态特性有限元分析 |
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| 引用本文： | 丛明,王贵飞,刘东,宋健,董欣胜.高速卧式镗铣加工中心立柱动态特性有限元分析[J].组合机床与自动化加工技术,2011(8). |
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| 作者姓名： | 丛明 王贵飞 刘东 宋健 董欣胜 |
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| 作者单位： | 1. 大连理工大学机械工程学院,辽宁大连,116023
2. 大连机床集团有限责任公司,辽宁大连,116033 |
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| 基金项目： | 国家“高档数控机床与基础制造装备”科技重大专项课题(2009ZX04001-011) |
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| 摘 要： | 以高速卧式镗铣加工中心立柱为研究对象,采用有限元与实验相结合的分析方法对其动态特性进行了研究.建立了立柱的有限元模型,并进行了模态分析,得出了1至4阶固有频率和相应振型.搭建了立柱动态特性实验平台,选择了四组激振点和拾振点,采用单点激振和单点拾振的方式进行了数据采集.通过分析实验数据,获得了立柱前4阶固有频率和关键位置的动刚度.有限元和实验分析的固有频率相对误差小于9％,表明该平台可有效的激起立柱的固有频率,理论与实验分析结果可为立柱的结构优化设计提供理论依据.
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| 关 键 词： | 加工中心 立柱 动态特性 有限元 实验分析 |
Testing Analysis on Dynamic Characteristics of Column in High-speed Horizontal Boring and Milling NC Center |
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| CONG Ming,WANG Gui-fei,LIU Dong,SONG Jian,DONG Xin-sheng.Testing Analysis on Dynamic Characteristics of Column in High-speed Horizontal Boring and Milling NC Center[J].Modular Machine Tool & Automatic Manufacturing Technique,2011(8). |
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| Authors: | CONG Ming WANG Gui-fei LIU Dong SONG Jian DONG Xin-sheng |
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| Affiliation: | CONG Ming1,WANG Gui-fei1,LIU Dong1,SONG Jian1,DONG Xin-sheng2 (1.School of Mechanical of Engineering,Dalian University of Technology,Dalian Liaoning 116023,China,2.Dalian Machine Tool Group Corp.,Dalian Liaoning 116033,China) |
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| Abstract: | High-speed horizontal boring and milling machining center column as the object of study,the dynamic characteristics were researched by experimental and finite element method.The finite element model was established and modal analysis was performed on column with the first four natural frequencies and vibration models obtained.The experimental platform was set up.Four groups of excitation points and pick-up points were selected and experimental date was collected by using the one-point excitation and one-poi... |
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| Keywords: | machining center column dynamic characters finite element testing analysis |
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