《Acoustics: an introduction to its physical principles of lustand applications 》 byAllan D. Pierce

来源：蜘蛛抓取(WebSpider) 时间：2012-05-21 22:28 标签： principles of lust
Sound-Insulation Layer Modelling in Car Computational Vibroacoust...: Ingenta Connect
Volume 96,&Number 3
Authors: Fernandez, C&Soize, C&Gagliardini, Laurent
Source: , Volume 96,&Number 3, May/June 2010, pp. 437-444(8)Publisher:
In a previous article, a simplified low- and medium-frequency model for uncertain automotive sound-insulation layers was developed and experimentally identified and validated. This model is based on a stochastic elastoacoustic element whose mean part comes from an extension of the fuzzy structures theory and depends on three physical parameters: the modal density, the damping rate and the participating mass. A non-parametric probabilistic approach is used to build the uncertainty-accounting stochastic simplified model. This model takes into account the modelling and system-parameters uncertainties and depends on three dispersion parameters. In this paper, the insulation simplified model is implemented in an industrial stochastic vibroacoustic model of a car. An experimental database of tests on vehicles has been carried out and is compared with the predictions. The analysis of these results shows the relevance of the proposed methodology for complex vibroacoustics industrial computational models.
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Vertebrate Ecophysiology : An Introduction to its Principles and Applicationsby D. Bradshaw : book review
Journal Title:&African Zoology
Volume:&Volume 39
Publication Date:&2004
Pages:&p.159
Abstract:&
Extracted from text ...
Vertebrate Ecophysiology: An Introduction to
its Principles and Applicationsby D. Bradshaw.
Cambridge University Press, Cambridge.
2003. Price R420 (paperback). ISBN 0 521
The layout and content of this small, readable
book differs from all other works on ecophysiology.
It is essentially three-faceted. First, it discusses the
definition of ecophysiology, namely the study of
homeostasis or the control of the milieu int�rieur, as
Don Bradshaw prefers, in animals in the field.
However, in this context, he also redefines the
concept of stress, and throughout the book refers
to examples from harsh environments where stress
measurement is a crucial indicator
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