✦ LIBER ✦

THE EFFECT OF STRUCTURAL ELASTICITY ON THE EFFICIENCY OF NOISE BARRIERS

✍ Scribed by P. JEAN

Publisher: Elsevier Science
Year: 2000
Tongue: English
Weight: 319 KB
Volume: 237
Category: Article
ISSN: 0022-460X
DOI: 10.1006/jsvi.2000.3059

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✦ Synopsis

The e$ciency of noise barriers is usually estimated neglecting their elastic behaviour. In this paper, the total vibro-acoustical response of simple barriers is considered. A variational approach with a boundary-element technique is used. It is a generalization of an existing formalism developed for the study of two-dimensional acoustical problems. The case of straight and thin barriers is studied. It is found that, at low frequencies, their vibrations can modify their insertion losses by several decibels.

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