Automatic chatter detection in grinding

被引：76

作者：

Gradisek, J

Baus, A

Govekar, E

Klocke, F

Grabec, I

机构：

[1] Univ Ljubljana, Fac Mech Engn, Ljubljana 1000, Slovenia

[2] Rhein Westfal TH Aachen, Lab Machine Tools & Prod Engn WZL, D-5100 Aachen, Germany

来源：

INTERNATIONAL JOURNAL OF MACHINE TOOLS & MANUFACTURE | 2003年 / 43卷 / 14期

关键词：

grinding; chatter; monitoring;

D O I：

10.1016/S0890-6955(03)00184-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Two methods for automatic chatter detection in outer diameter plunge feed grinding are proposed. The methods employ entropy and coarse-grained information rate (CIR) as indicators of chatter. Entropy is calculated from a power spectrum, while CIR is calculated directly from fluctuations of a recorded signal. The methods are verified using signals of the normal grinding force and RMS acoustic emission. The results show that entropy and CIR perform equally well as chatter indicators. Based on the normal grinding force, they detect chatter in its early stage, while only cases of strong chatter are detected based on RMS acoustic emission. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：1397 / 1403

页数：7

共 14 条

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