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RESEARCH PAPERS

Redesign of Ultrasonic Block Horns for Improved Vibration Performance

[+] Author and Article Information
M. Lucas, A. C. Smith

Department of Mechanical Engineering, Loughborough University of Technology, Leicestershire LE11 3TU United Kingdom

J. Vib. Acoust 119(3), 410-414 (Jul 01, 1997) (5 pages) doi:10.1115/1.2889739 History: Received July 01, 1994; Revised July 01, 1995; Online February 26, 2008

Abstract

Ultrasonic block horns are prone to reliability problems associated with modal activity close to the tuned operating frequency. This paper presents an approach to block horn design, which relies on two laser based vibration measurement techniques, electronic speckle pattern interferometry (ESPI) and laser doppler velocimetry (LDV) modal analysis, to validate finite element (FE) models. Block horn vibration characteristics are interpreted from experimental and theoretical data such that successful horn redesign can be achieved from modifications to the FE models.

Copyright © 1997 by The American Society of Mechanical Engineers
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