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Transient wave response of the violin body revisited
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Fluid and Experimental Mechanics.
Luleå University of Technology, Department of Engineering Sciences and Mathematics.
Kungliga tekniska högskolan, KTH.
1991 (English)In: Journal of the Acoustical Society of America, ISSN 0001-4966, E-ISSN 1520-8524, Vol. 90, no 4, p. 2192-2195Article in journal (Refereed) Published
Abstract [en]

In this investigation, the dispersive, transient wave propagation field of the top plate of a complete violin excited by a mechanically induced pulse at the top of the bridge is presented. A similar investigation has previously been made for excitation parallel with the top plate and is now completed with excitation perpendicular to the plate. From presented interferograms, it is seen that the top plate initially deforms in a nonsymmetric two-pole with centers at the two bridge feet. Shortly thereafter the two poles (valleys) are joined into one, but after 0.30 ms the displacement is still nonsymmetric with maximum motion at the bridge foot closest to the excitation point. From the measurements it can be concluded that for excitation parallel with the top plate, the plate between the f-holes acts mainly as a dipole, but with excitation perpendicular the same part acts mainly as a monopole. Thus the excitation of the top plate when playing the violin depends on the angle of the bow in relation to the top plate and should influence the tone character

Place, publisher, year, edition, pages
1991. Vol. 90, no 4, p. 2192-2195
National Category
Applied Mechanics
Research subject
Experimental Mechanics
Identifiers
URN: urn:nbn:se:ltu:diva-10668DOI: 10.1121/1.401646ISI: A1991GJ14700050Scopus ID: 2-s2.0-0025931821Local ID: 98158e60-bb57-11db-b560-000ea68e967bOAI: oai:DiVA.org:ltu-10668DiVA, id: diva2:983614
Note
Godkänd; 1991; 20061121 (cira)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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Molin, Nils-ErikWåhlin, Anders

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