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http://dx.doi.org/10.5050/KSNVN.2009.19.7.693

A Study on the Performance Improvement of Medium Speed Diesel Engine Exhaust Silencer in the Low-frequency Range Using Array Resonators  

Kim, Young-Hyun (현대중공업 진동소음연구실)
Joo, Won-Ho (현대중공업 진동소음연구실)
Bae, Jong-Gug (현대중공업 기술개발본부)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.19, no.7, 2009 , pp. 693-698 More about this Journal
Abstract
Various acoustic tests were carried out to investigate the acoustic performance of diesel engine exhaust silencers. In order to consider flow effects, the test facility was set up composed of fan, duct and silencer. Using the test facility, insertion loss tests were carried out to improve the acoustic performance in the low-frequency ranges. Through a series of tests, it was found out that the array resonators having multi-perforated holes inside the exhaust silencer, might be very effective in the low frequency range. Consequently, the hybrid-type silencer which is the combination of reflective silencer with array resonators and conventional absorptive silencer, was proposed and its high performance in the low-frequency range was also verified.
Keywords
Diesel Engine; Silencer; Insertion Loss; Array Resonator; Low-frequency Range;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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2 Seo, S.-H. and Kim, Y.-H., 2004, “Acoustic Characteristics of a Silencer by Using Array Resonators,” Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 14, No. 10, pp. 975~982   DOI   ScienceOn
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