Advanced Study on the Evaluation of Acoustic Characteristics for Sound Absorbing Foams
摘要
The aim of this work was to perform a comparative analysis of potential soundproofing capabilities provided by a set of foam type materials, additionally taking into account practical implementation requirements for each type of application. The analyses were based on experimental evaluations, in terms of sound absorption coefficient, performed using the impedance tube (also known as the Kundt tube) and the transfer matrix method. Additionally, advanced analyses were carried out using a set of special applications developed within the MATLAB computational platform. The sound-absorbing materials were selected according to their acoustic characteristics, market availability, and practical relevance, also taking into account diverse potential applications, both in civil construction and in technical, commercial, or industrial spaces. The results present particular relevance in the noise control domain, especially for those practical applications that require and/or impose strictly on-site embedding conditions.