Title :
Analysis of Pass-by Noise in Protective Barrier Road
Author :
Ma, F.Y. ; Weiwei, Wu ; Wang, Y.S. ; Li Wei ; Lijun, Cai
Author_Institution :
Shanghai Univ. of Eng. Sci., Shanghai, China
Abstract :
By method of study in aerodynamic noise, a model of car and protective barrier road in air field was built in this paper. The distributed of fluid and acoustic in aside of protective barrier road was solved by Fluent software. The result of analysis showed that velocities, pressures and noise are all distributed as alternating strong and weak near the protective barrier. And when the speeds of car exceed 20m/s, the maximum peak of noise will over 60db and intermittent noise will produce. This result coincide with people´s feelings experience when who pass these load by car. Otherwise, this phenomenon will not be feeling if speed of car is to surpass 40m/s. It may be decided by size of protective barrier.
Keywords :
acoustic noise; aerodynamics; road safety; Fluent software; aerodynamic noise; air field; car model; pass-by noise; people feelings; protective barrier road; Acoustics; Analytical models; Atmospheric modeling; Fluids; Noise; Roads; Solid modeling; Fluent aerodynamic noise; Protective barrier road; pass-by noise;
Conference_Titel :
Measuring Technology and Mechatronics Automation (ICMTMA), 2011 Third International Conference on
Conference_Location :
Shangshai
Print_ISBN :
978-1-4244-9010-3
DOI :
10.1109/ICMTMA.2011.121
