Amplitude demodulation of the induction motor current for the tool breakage detection in drilling operations

被引：24

作者：

Tarng, YS ^{[1
]}

Lee, BY

机构：

[1] Natl Taiwan Univ Sci & Technol, Dept Mech Engn, Taipei 106, Taiwan

[2] Natl Huwei Inst Technol, Dept Mech Mfg Engn, Huwei 632, Taiwan

来源：

ROBOTICS AND COMPUTER-INTEGRATED MANUFACTURING | 1999年 / 15卷 / 04期

关键词：

tool breakage; drilling; discrete wavelet transform; induction motor current;

D O I：

10.1016/S0736-5845(99)00015-0

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 [计算机应用技术]; 0835 [软件工程];

摘要：

The use of induction motor current to detect the occurrence of tool breakage in drilling operations has been investigated in this paper. It is shown that the induction motor current signal is a modulating signal with a frequency of the stator. Based on this study, the induction motor current can be demodulated by the discrete wavelet transform. As a result, a large amplitude variation of the induction motor current due to tool breakage can be extracted by using the discrete wavelet transform. Experimental results have shown that tool breakage in drilling operations can be clearly detected through this approach. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：313 / 318

页数：6

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