Download Acoustics of Wood (Springer Series in Wood Science) by Voichita Bucur PDF

By Voichita Bucur

ISBN-10: 3540305947

ISBN-13: 9783540305941

I've got stumbled on this a superb publication for realizing a few features of wooden utilized in musical software making. It confirms a number of the conclusions reached from useful adventure. I simply want there has been a bit extra that was once proper to tool making.

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Extra resources for Acoustics of Wood (Springer Series in Wood Science)

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1973) as well as Craik et al. (1992) reported results from specimens tested by the impedance head method to determine for each material the loss factor, the mechanical impedance, the sound velocity, etc. 3). Compared with other materials, wood is characterized by low density, high velocity, and relatively low loss factors when compared with other materials having the same density. Takahashi et al. (1981, 1987a,b) reported results on the control of sounds travelling from one room to another through the floor−ceiling pathway.

As an example let us take the case of spruce in longitudinal direction, for which C11=150×108 N/m2=15,000 MPa=15 GPa. For solids of different symmetries such as isotropic, transverse isotropic, or orthotropic, the stiffness matrix can be turned into a compliance matrix, following a specific procedure (Bodig and Jayne 1982). , orientation of the fibers. 1 Elastic Symmetry of Propagation Media Because this chapter aims to provide the theoretical basis needed to understand wave propagation phenomena in solids, it was decided to analyze, first, the elastic symmetry of media of various complexity.

5. Section through a timber platform floating floor. 5-mm plasterboard. 3 Wood and the Acoustics of Concert Halls There are many cases of the improvement of room acoustics when wood material is used. Moreover, it has been recognized that the acoustical quality of rooms is a matter of subjective judgement. Even today, the design and construction of a concert hall can be defined as «an art» in the classical meaning of the word, despite the fact that scientific knowledge in this field is advanced (Muller 1986).

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