| 微细轴车铣加工颤振时变性分析 |
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| 引用本文： | 刘克非,廖育武,李春平,刘志兵,张之敬.微细轴车铣加工颤振时变性分析[J].襄樊学院学报,2010,31(11):5-8. |
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| 作者姓名： | 刘克非 廖育武 李春平 刘志兵 张之敬 |
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| 作者单位： | [1]襄樊学院机械与汽车工程学院,湖北襄樊441053 [2]襄樊学院物理与电子工程学院,湖北裹樊441053 [3]军事经济学院襄樊分院,湖北襄樊441118 [4]北京理工大学机械与车辆工程学院,北京100081 |
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| 基金项目： | 湖北省自然科学基金，湖北省教育厅自然科学基金重点项目 |
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| 摘 要： | 对微细轴车铣加工的振动过程分析发现：其振动历经了颤振产生、颤振发展、稳定颤振、颤振减弱、颤振消失的过程,是典型的时变切削振动过程.运用基于时间序列分析的AR模型对微小型零件切削振动过程进行了分析,证明了微细轴的车铣加工颤振具有时变特性.并且揭示在微小型零件加工过程中,工件尺寸的减小、运动部件的位置变化等因素,使得工件的刚度、运动部件的接触刚度与接触阻尼等都发生变化,而这是导致颤振时变性的重要原因.
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| 关 键 词： | 微细轴 车铣加工 时变颤振 AR模型 |
Time-varying Flutter for Micro-shafts Turn-milling Machining |
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| LIU Ke-fei,LIAO Yu-wu,LI Chun-ping,LIU Zhi-bing,ZHANG Zhi-jing.Time-varying Flutter for Micro-shafts Turn-milling Machining[J].Journal of Xiangfan University,2010,31(11):5-8. |
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| Authors: | LIU Ke-fei LIAO Yu-wu LI Chun-ping LIU Zhi-bing ZHANG Zhi-jing |
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| Institution: | 1.School of Mechanical and Automotive Engineering,Xiangfan University,Xiangfan 441053,China; 2.School of Physics and Electronic Engineering,Xiangfan University,Xiangfan 441053,China; 3.Xiangfan College of Military Economic Academy,Xiangfan 441118,China; 4.School of Mechanical and Vehicle Engineering,Beijing Institute of Technology,Beijing 100081,China) |
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| Abstract: | The vibration process of micro-shaft turn-milling machining analyzed,it found that the process includes generation,development,stability,weakness and loss,which is characteristic of typical time-varying vibration cutting.Using AR model based on time series analysis to discuss the vibration process of micro-parts machining,It is proved that in the course of working of microminiature parts,the size of parts,location of moving parts make stiffness of parts,touching stiffness and touching damping change,which mainly leads to time-varying flutter. |
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| Keywords: | Micro-shaft Turn-milling machining Time-varying flutter AR model |
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