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2018 | 133 | 5 | 1241-1260
Article title

A Study on the Correlation between Wood Moisture and the Damping Behaviour of the Tonewood Spruce

Content
Title variants
Languages of publication
EN
Abstracts
EN
In acoustic musical instruments special attention needs to be paid to those particularly sensitive parts made of tonewood whose function is to respond to vibrations. One of the most important tonewoods is spruce because of its good resonance properties. Spruce is especially used for soundboards, these being the primary source of sound. Piano manufacturers dry their soundboards to approximately 6% wood moisture, at which drying stage they are glued into the instrument. Fluctuations of the moisture content in the wood affect the tone. With changing moisture content, the instrument can go out of tune, even cracks can appear at very low moisture content in the wood. In addition, the tone colour will change. This may result from changes in the hammer felt or from changes in the vibration properties of the soundboard. Strain- and frequency-dependent damping measurements were carried out on spruce wood at different wood moisture contents in order to investigate the effect of the moisture content on the vibration behaviour. Wood which is slowly dried in air for several years is preferably used for high-class pianos. Therefore, damping measurements on new and on more than 130-year old spruce wood samples were performed.
Publisher

Year
Volume
133
Issue
5
Pages
1241-1260
Physical description
Dates
published
2018-05
received
2017-09-08
(unknown)
2018-01-14
Contributors
author
  • University of Applied Sciences Emden-Leer, Faculty of Maritime Sciences, Bergmannstr. 36, 26789 Leer, Germany
author
  • University of Applied Sciences Emden-Leer, Faculty of Maritime Sciences, Bergmannstr. 36, 26789 Leer, Germany
author
  • University of Applied Sciences Emden-Leer, Faculty of Maritime Sciences, Bergmannstr. 36, 26789 Leer, Germany
author
  • Enzenauer Flügel-Manufaktur GmbH, Schulstr. 15, 51399 Burscheid, Germany
References
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv133n5p20
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