By Voichita Bucur

From the experiences of the first edition:

"It would definitely stay the main accomplished paintings during this box for a very long time to come back. It belongs at the bookshelf of each fabric scientist and structural engineer."

CAS magazine, USA

"...[T]he writer has performed an admirable task, accumulating, organizing, and reviewing the disparate literature on so much points of the Acoustics of Wood."

Journal of the Acoustical Society of the US, USA

Show description

Read Online or Download Acoustics of Wood PDF

Best forestry books

Forest BioEnergy Production: Management, Carbon sequestration and Adaptation

For hundreds of thousands of years, wooded area biomass or wooden has been one of the major power resources of people worldwide. because the commercial revolution, fossil fuels have changed wooden and develop into the dominant resource of strength. using fossil fuels has the downside of accelerating atmospheric concentrations of greenhouse gases (GHGs), particularly carbon dioxide (CO2), with the resultant warming of worldwide weather and adjustments in precipitation.

Fatal Consumption: Rethinking Sustainable Development

Why can we declare to price sustainability whereas appearing in an unsustainable type? How do we lessen our intake significantly and movement towards a sustainable social process whilst our society is particularly in accordance with intake? those associated questions are on the middle of this significant e-book, the results of a four-year interdisciplinary learn of British Columbia’s decrease Fraser Basin.

Extra info for Acoustics of Wood

Sample text

It is generally admitted in architectural acoustics that heavier materials provide better sound isolation and, as an example, by doubling the surface weight, the sound loss increases by a factor of about 5. In addition to the weight, other factors affect wall vibration, for example some natural frequencies produced by bending waves and related to the stiffness of the construction. Sound-absorbing materials control echoes and reverberation. As an example of transmission loss, we cite the measurements on a wood panel 2 cm thick and on a panel of glass fibers of the same thickness (Braune 1960).

Another very important field of utilization of wood and wood-based composites as acoustical insulators is in the acoustics of concert halls, opera houses, lecture rooms, etc. The sound field in a room is very complicated and not open to precise mathematical determination. Two points are relevant to the fundamental aspects of room acoustics: the generation and propagation of the sound in an enclosure and the physiological and psychological factors that provide clues about good or poor acoustics.

Transmission of sound through panels. Above Schematic representation of sound propagation between adjoining rooms. (Beranek 1962, with permission). Below Schematic representation of incident acoustic energy (Ee) on a wall and corresponding transmitted (Ed), absorbed (Ea), and reflected (Er) energies. (Braune 1960) sonic energy in the anisotropic planes of wood LR or longitudinal tangential (LT), the absorption coefficient is small and quite constant for all frequencies. 2 Wood Materials as Acoustical Insulators Wood was and still is a basic building material.

Download PDF sample

Rated 4.52 of 5 – based on 33 votes