Vibrational characteristics of harp soundboards

Authors

  • Chris Waltham Department of Physics and Astronomy, University of British Columbia, Vancouver, BC V6T 1Z1
  • Andrzej Kotlicki Department of Physics and Astronomy, University of British Columbia, Vancouver, BC V6T 1Z1
  • Laura Dunwoody Department of Physics and Astronomy, University of British Columbia, Vancouver, BC V6T 1Z1
  • Tina Lee Department of Physics and Astronomy, University of British Columbia, Vancouver, BC V6T 1Z1
  • Julia Lin Department of Physics and Astronomy, University of British Columbia, Vancouver, BC V6T 1Z1
  • Billy Lin Department of Physics and Astronomy, University of British Columbia, Vancouver, BC V6T 1Z1

Keywords:

Axis of symmetries, Contour plots, Driving point admittances, Impact hammers, Vertical positions, Vibro-acoustic behaviors, Wooden shells

Abstract

The vibrational characteristics of harp soundboards, which are wooden shells with holes, was investigated. The soundboards were scanned by measuring the driving point admittance at many points along the axis of symmetry where the strings are attached. The admittance was measured using a small, light accelerometer and an impact hammer. The contour plot showed the results for the admittance, where frequency is plotted against vertical position on the soundboard, and is represented by shading observed. The study help in understanding of the vibro-acoustic behavior of a modern harp soundbox.

Published

2008-12-01

How to Cite

1.
Waltham C, Kotlicki A, Dunwoody L, Lee T, Lin J, Lin B. Vibrational characteristics of harp soundboards. Canadian Acoustics [Internet]. 2008Dec.1 [cited 2021May17];36(4):52-3. Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/2108

Issue

Section

Technical Articles

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