Volume 4, Issue 4 (12-2014)                   ASE 2014, 4(4): 834-845 | Back to browse issues page

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Younesian, Hamzavi, Rostam. Active Noise Control in Pardis Coach using Different Fuzzy Controllers. ASE 2014; 4 (4) :834-845
URL: http://www.iust.ac.ir/ijae/article-1-289-en.html
Abstract:   (20384 Views)
In recent years, need to increase the convenience of trips in railway vehicles causes that train operators and manufacturers focus on reducing the noise level which is sensed by passengers. In this paper, first the state of modeling acoustic noise in cab train is discussed and natural frequencies and acoustic mode shapes are derived and then formulation of acoustic pressure in the cab will be obtained. By utilizing field testing, the noise produced by diesel engine in the cabin of Pardistranset train (source of undesirable noise), has been measured and is used in simulating. In order to reduce the acoustic pressure, a secondary noise source is used which its Stimulation signal is obtained by phased PID controller. Then, active noise control will be investigated in two cases of single-channel and multi-channel. The result of actuating the controller shows that in central frequencies of one octave band, there is a reduction in the sound pressure level, loudness, and sound loudness level.
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