Identification of Motion of Cutting Tool Vibration in a Continuous Boring Operation - Correlation to structural Properties

Document type: Journal Articles
Article type: Original article
Peer reviewed: Yes
Author(s): Linus Andrén, Lars Håkansson, Anders Brandt, Ingvar Claesson
Title: Identification of Motion of Cutting Tool Vibration in a Continuous Boring Operation - Correlation to structural Properties
Journal: Mechanical Systems & Signal Processing
Year: 2004
Volume: 18
Issue: 4
Pagination: 903-27
ISSN: 0888-3270
Publisher: Academic Press, UK
ISI number: 000221440200011
Organization: Blekinge Institute of Technology
Department: School of Engineering - Dept. of Signal Processing (Sektionen för teknik – avd. för signalbehandling)
School of Engineering S- 372 25 Ronneby
+46 455 38 50 00
http://www.tek.bth.se/
Authors e-mail: lar@bth.se, lha@bth.se, anders.brandt@saven.se, icl@bth.se
Language: English
Abstract: The internal turning operation has a history of being a cumbersome
metal working process as vibration in boring operations is usually
inevitable. In this article, the deflection shapes and/or mode shapes as well as
the resonance frequencies of a boring bar have been put under scrutiny. Three methods
have been used in order to investigate
dynamic properties of a clamped boring bar: a theoretical
Euler-Bernoulli beam model, an experimental
modal analysis and an operating deflection shape analysis. \\
The results indicate a correlation between the shapes of the
deflection shapes and/or mode shapes produced by
the three different analysis methods. On the other hand,
the orientation of the forced deflection shapes and/or mode shapes and the resonance
frequencies demonstrates differences between the
three methods. During continuous cutting, it is demonstrated
that the bending motion of the first two resonance
frequencies is to a large extent in the cutting speed direction.
Subject: Signal Processing\Active Noise and Vibration Control
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