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Piezoelectric shunt damping of a circular saw blade with autonomous power supply for noise and vibration reduction

Pohl, Martin and Rose, Michael (2015) Piezoelectric shunt damping of a circular saw blade with autonomous power supply for noise and vibration reduction. Journal of Sound and Vibration, 361, pp. 20-31. Elsevier. DOI: 10.1016/j.jsv.2015.09.021 ISSN 0022-460X

Full text not available from this repository.

Official URL: http://www.sciencedirect.com/science/article/pii/S0022460X15007427

Abstract

Circular saws are widespread tools for machining metal, wood or even ceramics. Due to the thin blade and excitation by the workpiece contact of the cutting edges, circular saws are prone to vibration and intense noise emission. Damping the blade will lower the hearing protection requirements of the users and possibly increase precision. Therefore a new damping concept for circular saw blades is presented in this paper. It is based on negative capacitance shunted piezoelectric transducers which are applied to the saw blade core. The required energy for the electronics is harvested from the rotation by a generator, so that no change of the machine tool is required. All components are integrated into an autonomous saw tool. Finally, the system is experimentally investigated without rotation, in idling and in cutting condition in a circular saw test stand in the Institute for Machine Tools and Production Engineering (IWF) at TU Braunschweig. The experimental investigation shows a good reduction of the vibration amplitude over a wide frequency range in the non-rotating condition. When rotating, the damping effect is lower and limited to some narrow frequency bands. The proposed reason for the reduced damping effect in rotating condition consists in the saturation of the electronic circuits due to the limited supply voltage capabilities.

Item URL in elib:https://elib.dlr.de/99290/
Document Type:Article
Title:Piezoelectric shunt damping of a circular saw blade with autonomous power supply for noise and vibration reduction
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Pohl, MartinInstitut für Faserverbundleichtbau und Adaptronik - AdaptronikUNSPECIFIED
Rose, MichaelInstitut für Faserverbundleichtbau und Adaptronik - AdaptronikUNSPECIFIED
Date:2015
Journal or Publication Title:Journal of Sound and Vibration
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:361
DOI :10.1016/j.jsv.2015.09.021
Page Range:pp. 20-31
Publisher:Elsevier
ISSN:0022-460X
Status:Published
Keywords:piezoelectric shunt damping, negative capacitance, circular saw, noise attenuation
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Concepts and Integration, V - NGC-Energiemanagement (old)
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Adaptronics
Deposited By: Pohl, Martin
Deposited On:16 Nov 2015 08:31
Last Modified:26 Sep 2017 12:43

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