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Geometrical compensation for varying material properties in bows by the use of numerical optimization
Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering, Physics and Mathematics.
Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering, Physics and Mathematics.
Responsible organisation
2007 (English)In: Acta Acoustica united with Acustica, ISSN 1610-1928, E-ISSN 1861-9959, Vol. 93, no 1, 145-151 p.Article in journal (Refereed) Published
Abstract [en]

Wood for violin bows from the pernambuco tree shows large variations in density. For high quality bows, the higher densities are preferred. Since pernambuco is rare and expensive, it is of interest to investigate if it is possible to compensate for variations in density between blanks for bows; particularly in such a way that important qualities of high quality bows are maintained in bows made of wood with a lower density. In this study, numerical optimization is used to replicate some of the static and dynamic properties of a reference bow, using wood with 10% lower density. The structural calculations of the bow are made with a finite element program (ANSYS), which is coupled to an external optimization routine. The automatic optimization process is performed using the Method of Moving Asymptotes. Included are also some remarks on how homogenous scaling of the cross section of a bow of constant length affects some of the static and dynamic properties when used as compensation for density variations.

Place, publisher, year, edition, pages
2007. Vol. 93, no 1, 145-151 p.
Keyword [en]
Violin Bow, Optimization
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:miun:diva-1550ISI: 000244415600015Scopus ID: 2-s2.0-33847106427Local ID: 542OAI: oai:DiVA.org:miun-1550DiVA: diva2:26582
Note

VR-Medicine, External

Available from: 2008-09-30 Created: 2009-11-02 Last updated: 2016-10-04Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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  • vancouver
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  • de-DE
  • en-GB
  • en-US
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  • nn-NO
  • nn-NB
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  • Other locale
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