Study and optimization of traveling wave generation in finite-length beams

This paper presents a detailed study of the generation of traveling waves in finite-length beams. The method used is the mode superposition. It consists in exciting, with two actuators, two standing waves space shifted of a quarter wavelength and time shifted of a quarter period. Thanks to an analyt...

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Bibliographic Details
Published inMathematics and computers in simulation Vol. 81; no. 2; pp. 290 - 301
Main Authors Dehez, Bruno, Vloebergh, Christophe, Labrique, Francis
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.10.2010
Subjects
Analytical model
Finite-length beam
Normal mode superposition
Optimization
Traveling wave
Analytical model
Traveling wave
Finite-length beam
Normal mode superposition
Optimization
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Summary:This paper presents a detailed study of the generation of traveling waves in finite-length beams. The method used is the mode superposition. It consists in exciting, with two actuators, two standing waves space shifted of a quarter wavelength and time shifted of a quarter period. Thanks to an analytical model giving the general solution of the flexural wave, we define the ideal conditions ensuring the best quality of this wave across the beam. Then, through an optimization process, we get the excitation parameters, actuator positions and driving frequency, that allow to approach at most these conditions.
ISSN:0378-4754
1872-7166
DOI:10.1016/j.matcom.2010.05.013