Published in: 2nd International Conference on Acoustics and Vibration
COI code: ISAV02_189
Paper Language: English
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Authors Optimized Inclined Sound Barrier for Railway Noise MitigationMostafa Karimi - University of Science and Technology, Tehran, Iran
Davood Younesian -
Abstract:Performance of inclined noise barriers in railway noise mitigation is studied in this paper. At the first part, mitigation performance of a partial sound barrier is experimentally examined. Validityof the Kurze & Anderson formula is investigated in presence of a moving sound source such as alocomotive. A numerical model is then provided in SOUNDPLAN software and it is validated by the supporting experimental results. For different frequencies 500, 1K, 1.5K and 2 KHzoptimal inclination angle is obtained for various geometrical configurations. Sound spectrum is then obtained for different types of locomotives in a series of filed measurement tests. Using thereal sound data for different types of passenger and freight trains, optimal barrier configurationsare obtained. It is shown that the inclination angle can play a significant role in noise mitigation level remarkably in high height regions.
Keywords:Sound barrier; Noise mitigation; Optimization
COI code: ISAV02_189
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Karimi, Mostafa & Davood Younesian, 2012, Optimized Inclined Sound Barrier for Railway Noise Mitigation, 2nd International Conference on Acoustics and Vibration, تهران, دانشگاه صنعتي شريف, https://www.civilica.com/Paper-ISAV02-ISAV02_189.htmlInside the text, wherever referred to or an achievement of this article is mentioned, after mentioning the article, inside the parental, the following specifications are written.
First Time: (Karimi, Mostafa & Davood Younesian, 2012)
Second and more: (Karimi & Younesian, 2012)
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