Study and conducting appropriate approaches for noise reduction and presenting an equation with plans for predicting noise reduction (case study: tune boundary stations in Semnan province)

Subject Areas : Operational Modal Analysis (OMA)

Ehsan Jamshidi ¹ ( Department of Mechanical Engineering, Semnan Branch, Islamic Azad University, Semnan, Iran )
alireza arghavan ² ( department of mechanical engineering, semnan branch,islamic azad university,semnan,iran )
sadegh tarahomi ³ ( semnan azad university/mechanical engineering )

Received: 2019-10-24 Accepted : 2020-02-29 Published : 2020-02-20

Keywords: Modeling, Gas Pressure Reducing Station, Voice Pollution, Sound Distribution, Sound Insulation,

Abstract :

In gas pressure reduction stations, due to the equipment installed and the geographic location of the station, in order to maintain the safety and health of the station, appropriate measures are needed to measure noise and reduce noise. Due to the high noise pollution, the TBS gas pressure stations are compared. Therefore, in this research, an appropriate model and a mathematical program to analyze the intensity level of sound at different intervals from the source of sound and various frequencies and different sound power in a non-insulated state and in insulated mode, by changing the surface density of the insulator, it examines the effect of reducing the level of sound intensity. The most important results are: Reduces the intensity of the sound by increasing the distance from the sound source. Voice intensity increases with increasing sound power at identical intervals from the sound source. As the distance from the sound source increases, the intensity of the sound decreases with decreasing frequency. With increasing insulating surface density, the level of sound balance decreases at identical intervals.