Acoustic Level Measurment By Noise Mapping Method And Mitigation Using Acoustic Plaster In Power Press Industry

Abstract

Ear is influenced by numerous noise generating hazards. In this investigation, the acoustic levels of all the machines in the industry were measured by Sound Level Meter (SLM) and the results were mapped. The mitigation measures were initiated with acoustic plaster. This work emphasizes the significance of decrease of noise levels by strategic analysis and development of acoustic barrier. The mapping of noise levels is performed using a 2D design of the plant utilizing Lutron SL 4030 SLM with distinct shading codes are utilized for various sound levels in noise mapping. The Time Weighted Average (TWA) and area estimations were concentrated to comprehend the impact of noise on the workmen. The composite noise barrier was developed by using coir and gypsum to alleviate the impact of noise on employees. An acoustic impedance tube was designed to measure the Transmission loss (TL) caused by the machines. The readings were taken and determined for a frequency range of 125 - 4000 Hz.