A Review on Methods of Noise Attenuation in Engineering Design Applications

Abstract

Nose is an unwanted sound that causes annoyance. It has been proved that the noise has an adverse effect on living things including human beings. Noise pollution norms have been laid down by OSHA (Occupational Safety and Health Administration) and Euro Norms. It is apparent that there exists a scope for the research in the design and development of noise attenuation methods and materials. In present review, the contributions of the researchers in design, testing and implementation of noise engineering in attaining the attenuation is focussed. Application of numerical, finite element analysis and experimentation analysis to study and to investigate acoustic materials in achieving noise attenuation are discussed. It also provides useful information in extending these studies and approaches with respect to macro and micro level material analysis in engineering design applications and thin film noise attenuation as well.