By Rajiv Padhye, Rajkishore Nayak (eds.)

This e-book highlights the producing and functions of acoustic textiles in a variety of industries. it's also examples from diverse industries within which acoustic textiles can be utilized to soak up noise and support decrease the impression of noise on the office. Given the significance of noise relief within the operating surroundings in different industries, the publication bargains a useful advisor for firms, educators and researchers concerned with acoustic materials.

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Extra resources for Acoustic Textiles, 1st Edition

Sample text

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.

The sinusoidal wave generates only single frequency. A variety of non-repetitive sounds produce waves of different frequencies. Sound waves are principally longitudinal waves. It means the wave medium, for instance, air, oscillates parallel to the wave’s direction. Let us consider a soft coil is stretched and fixed at one end. If the coil is quickly pushed and pulled from the other Fig. V. Kadam and R. Nayak end, it will compress and elongate along with the force direction. The same thing happens in longitudinal sound wave.

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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