[1]吴石,王洋洋,刘献礼,等. 铣削颤振过程非线性振动特性的在线分析[J].哈尔滨理工大学学报,2018,(01):1-6.[doi:10. 15938 /j. jhust. 2018. 01. 001]
 WU Shi,WANG Yang-yang,LIU Xian-li,et al. Online Analysis of Nonlinear Vibration Characteristics of Milling Chatter[J].哈尔滨理工大学学报,2018,(01):1-6.[doi:10. 15938 /j. jhust. 2018. 01. 001]
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 铣削颤振过程非线性振动特性的在线分析()
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《哈尔滨理工大学学报》[ISSN:1007-2683/CN:23-1404/N]

卷:
期数:
2018年01期
页码:
1-6
栏目:
材料科学与工程
出版日期:
2018-02-25

文章信息/Info

Title:
 Online Analysis of Nonlinear Vibration Characteristics of Milling Chatter
文章编号:
1007- 2683( 2018) 01- 0001- 06
作者:
 吴石 王洋洋 刘献礼 许红 李荣义
 ( 哈尔滨理工大学机械动力工程学院,黑龙江哈尔滨150080)
Author(s):
 WU Shi WANG Yang-yang LIU Xian-li XU Hong LI Rong-yi
 ( School of Mechanical and Power Engineering,Harbin University of Science and Technology,Harbin 150080,China)
关键词:
 铣削颤振 虚拟仪器 最大李雅谱诺夫指数 相位差 排列熵
Keywords:
 milling chatter virtual instrument maximum Lyapunov exponent phase differencepermutation entropy
分类号:
TH164; TG501
DOI:
10. 15938 /j. jhust. 2018. 01. 001
文献标志码:
A
摘要:
 为了分析铣削颤振过程的非线性动力学行为特性,首先基于工件振动信号的相位差、
最大李雅谱诺夫指数、排列熵等,分析变切深铣削过程中平稳铣削振动信号、颤振孕育振动信号和
颤振振动信号的的非线性特征。然后基于虚拟仪器平台开发了铣削振动信号的采集与分析系统,
进行在线预报铣削颤振实验。试验结果表明,振动信号的相位特征可以有效检测铣削颤振,但不能
有效预报切削颤振孕育; 在铣削颤振不同阶段,振动信号的李雅谱诺夫指数的敏感程度不同,排列
熵的阈值也不同。这样,相位差特征和混沌特征可以同时作为识别颤振孕育、发生的有效手段。
Abstract:
 In order to analyze the nonlinear dynamic behavior of the milling chatter,firstly to analyze the
varying depths of cut during milling stationary vibration signal the vibration signal and bred flutter vibration signal
nonlinear characteristics based on the phase difference and the maximum Lyapunov exponent permutation entropy
ect of the vibration signal of the workpiece. Then to develop the milling vibration signal acquisition and analysis
system for online forecasting milling chatter experiment based on virtual instrument platform. The experimental
results showed that,the phase of vibration signal characteristics can effectively detect the milling chatter. But that
can't be effective prediction of cutting chatter. At the different stages of cutting chatter,the sensitivity of the
Lyapunov exponent of the vibration signal is different. The threshold of permutation entropy is also different. The
characteristics of phase difference and chaotic characteristics can be used as an effective method for the
identification of chatter.

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更新日期/Last Update: 2018-05-04