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| 核主成分分析法的MIG焊电弧声信号特征选择 | |
| 引用本文： | 毕淑娟,韩玉杰,兰虎,刘立君. 核主成分分析法的MIG焊电弧声信号特征选择[J]. 哈尔滨理工大学学报, 2011, 16(5): 30-33 |
| 作者姓名： | 毕淑娟 韩玉杰 兰虎 刘立君 |
| 作者单位： | 1. 东北林业大学机电工程学院,黑龙江哈尔滨150040;哈尔滨学院理学院,黑龙江哈尔滨150086 2. 东北林业大学机电工程学院,黑龙江哈尔滨,150040 3. 哈尔滨理工大学荣成学院,山东荣成,264300 4. 哈尔滨理工大学材料科学与工程学院,黑龙江哈尔滨,150040 |
| 基金项目： | 黑龙江省自然科学基金(E2007-01) |
| 摘 要： | 以不同焊接状态电弧声信号识别为目的,从MIG焊平板对接射流过渡电弧声信号入手,探寻电弧声产生机理和传播特性.提出电弧声是气体放电的伴生物,是等离子体集体振荡以波形方式传播的结果,也是声源和声道共同作用的产物,其频谱特性主要取决于声道的频率响应.在此基础上,采用线性预测分析技术,提取了表征焊缝熔透状态的10维电弧声信号特... |
| 关 键 词： | 核主成分分析 电弧声 线性预测分析 特征提取 |
Feature Selection of Arc Sound in MIG Welding Based on Core Principal Component Analysis |
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| BI Shu-juan,HAN Yu-jie,LAN Hu,LIU Li-jun. Feature Selection of Arc Sound in MIG Welding Based on Core Principal Component Analysis[J]. Journal of Harbin University of Science and Technology, 2011, 16(5): 30-33 | |
| Authors: | BI Shu-juan HAN Yu-jie LAN Hu LIU Li-jun |
| Affiliation: | BI Shu-juan1,2,HAN Yu-jie1,LAN Hu3,LIU Li-jun4 (1.College of Mechanical and Electrical Engineering,Northeast Forestry University,Harbin 150040,China,2.College of Sciences,Harbin University,Harbin 150086,3.Rongcheng College,Harbin University of Science and Technology,Rongcheng 264300,4.School of Material Science and Engineering,China) |
| Abstract: | Aiming at the recognition of the arc sound signal in different welding status,the mechanism of arc sound generation and propagation are investigated from MIG butt welding with spray transfer.It is proposed that arc sound is an associated thing of gas discharge,the result of transmitting by the wave when the plasma collectively vibrates,and the outcome of their combined action,including the sound source and the sound track.Among them,the spectrum characteristic chiefly depends on the frequency respond of sou... |
| Keywords: | core principal component analysis: arc sound linear prediction analysis feature extraction |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |