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Experimental comparison of various excitation and acquisition techniques for modal analysis of violins

Tim Duerinck (UGent) , Joost Segers (UGent) , Ewa Skrodzka, Geerten Verberkmoes (UGent) , Marc Leman (UGent) , Wim Van Paepegem (UGent) and Mathias Kersemans (UGent)
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Abstract
For decades, modal analysis has been a tool to gain insights in the vibrational and acoustical behavior of music instruments. This study provides a critical comparison of various experimental modal analysis approaches with the violin as a case study. Both contact and non-contact excitation and different acquisition approaches are considered. The influence of different boundary conditions (clamped, supported, free/free) on the vibrational response of the violin is investigated. The response is analyzed to extract relevant modal parameters (frequency, damping and mode shape) within the frequency range of 0–1000 Hz. The performance of the different approaches is evaluated in terms of (i) signature vibration modes, (ii) experimental reproducibility, (iii) contact requirement and (iv) cost of required equipment. Two optimal approaches are proposed for performing modal analysis on violins: a contact method for use in the violinmaker’s practice, and a non-contact method for use with fragile instruments.
Keywords
Acoustics and Ultrasonics, Modal analysis, Violin, NDT, Acoustic excitation

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MLA
Duerinck, Tim, et al. “Experimental Comparison of Various Excitation and Acquisition Techniques for Modal Analysis of Violins.” APPLIED ACOUSTICS, vol. 177, 2021, doi:10.1016/j.apacoust.2021.107942.
APA
Duerinck, T., Segers, J., Skrodzka, E., Verberkmoes, G., Leman, M., Van Paepegem, W., & Kersemans, M. (2021). Experimental comparison of various excitation and acquisition techniques for modal analysis of violins. APPLIED ACOUSTICS, 177. https://doi.org/10.1016/j.apacoust.2021.107942
Chicago author-date
Duerinck, Tim, Joost Segers, Ewa Skrodzka, Geerten Verberkmoes, Marc Leman, Wim Van Paepegem, and Mathias Kersemans. 2021. “Experimental Comparison of Various Excitation and Acquisition Techniques for Modal Analysis of Violins.” APPLIED ACOUSTICS 177. https://doi.org/10.1016/j.apacoust.2021.107942.
Chicago author-date (all authors)
Duerinck, Tim, Joost Segers, Ewa Skrodzka, Geerten Verberkmoes, Marc Leman, Wim Van Paepegem, and Mathias Kersemans. 2021. “Experimental Comparison of Various Excitation and Acquisition Techniques for Modal Analysis of Violins.” APPLIED ACOUSTICS 177. doi:10.1016/j.apacoust.2021.107942.
Vancouver
1.
Duerinck T, Segers J, Skrodzka E, Verberkmoes G, Leman M, Van Paepegem W, et al. Experimental comparison of various excitation and acquisition techniques for modal analysis of violins. APPLIED ACOUSTICS. 2021;177.
IEEE
[1]
T. Duerinck et al., “Experimental comparison of various excitation and acquisition techniques for modal analysis of violins,” APPLIED ACOUSTICS, vol. 177, 2021.
@article{8694729,
  abstract     = {{For decades, modal analysis has been a tool to gain insights in the vibrational and acoustical behavior of music instruments. This study provides a critical comparison of various experimental modal analysis approaches with the violin as a case study. Both contact and non-contact excitation and different acquisition approaches are considered. The influence of different boundary conditions (clamped, supported, free/free) on the vibrational response of the violin is investigated. The response is analyzed to extract relevant modal parameters (frequency, damping and mode shape) within the frequency range of 0–1000 Hz. The performance of the different approaches is evaluated in terms of (i) signature vibration modes, (ii) experimental reproducibility, (iii) contact requirement and (iv) cost of required equipment. Two optimal approaches are proposed for performing modal analysis on violins: a contact method for use in the violinmaker’s practice, and a non-contact method for use with fragile instruments.}},
  articleno    = {{107942}},
  author       = {{Duerinck, Tim and Segers, Joost and Skrodzka, Ewa and Verberkmoes, Geerten and Leman, Marc and Van Paepegem, Wim and Kersemans, Mathias}},
  issn         = {{0003-682X}},
  journal      = {{APPLIED ACOUSTICS}},
  keywords     = {{Acoustics and Ultrasonics,Modal analysis,Violin,NDT,Acoustic excitation}},
  language     = {{eng}},
  pages        = {{9}},
  title        = {{Experimental comparison of various excitation and acquisition techniques for modal analysis of violins}},
  url          = {{http://dx.doi.org/10.1016/j.apacoust.2021.107942}},
  volume       = {{177}},
  year         = {{2021}},
}

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