Get Acoustic Textiles PDF

By Rajiv Padhye, Rajkishore Nayak (eds.)

ISBN-10: 9811014744

ISBN-13: 9789811014741

ISBN-10: 9811014760

ISBN-13: 9789811014765

This e-book highlights the producing and functions of acoustic textiles in quite a few industries. it is also examples from varied industries within which acoustic textiles can be utilized to take in noise and aid decrease the impression of noise on the office. Given the significance of noise relief within the operating setting in different industries, the ebook bargains a precious consultant for corporations, educators and researchers concerned with acoustic materials.

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3 Sound wave interaction with material or object surface Sound absorption measures the amount of energy absorbed by the material and expressed as sound absorption coefficient (α). The coefficient ranges between 0 and 1 where 0 is no absorption and 1 is highest or total absorption. The higher coefficient yields lower reverberation time. The reverberation time is persistence of sound in a space after a sound source has been stopped [1]. It is the time lag, in seconds, for the sound to decay by 60 dB after a sound source has been stopped.

Keywords Sound wave Á Propagation Á Frequency Á Absorption Á Decibel 1 Introduction The most important interactive communication in the social sense of human beings is to hear [3]. A sensation or a feeling that we hear is a sound. The science of sound is termed as acoustics. The word acoustics originated from the Greek word meaning “to hear” [4]. V. V. Kadam Á R. au © Springer Science+Business Media Singapore 2016 R. Padhye and R. V. Kadam and R. Nayak elastic or viscous), or the superposition of such propagated oscillation.

Padhye and R. 1007/978-981-10-1476-5_3 43 44 X. Qiu 1 Principles of Sound Absorbers This chapter introduces the principles of sound absorbers and the factors that affect acoustic absorption. The basic wave phenomena related to sound propagation such as acoustic reflection, absorption and scattering are introduced first and then the corresponding parameters such as transmission loss, absorption coefficient, scattering coefficient and flow resistance are explained. The mechanisms of porous absorbers and resonance absorbers are discussed next as well as designing factors that affect acoustic absorption.

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Acoustic Textiles by Rajiv Padhye, Rajkishore Nayak (eds.)

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