Analysis of Sound Transmission Characteristics of Multi-complex Panel for Noise Reduction in High Value-added Vessel Cabin

doi:2012.26.3.13

J. Ocean Eng. Technol. > Volume 26(3); 2012 > Article

J. Ocean Eng. Technol. 2012;26(3):13-19.
DOI: https://doi.org/10.5574/KSOE.2012.26.3.013

Kwon Hyun-Wung,Hong Suk-Youn,Kil Hyun-Gwon,Kim Hwa-Muk,Song Jee-Hun

Department of Naval Architecture and Ocean Engineering Seoul National University,Department of Naval Architecture and Ocean Engineering Seoul National University,Department of Mechanical Engineering University of Suwon,Defense Acquisition Program Admin

고부가가치선 선실의 소음 저감용 복합패널의 차음특성 해석

권현웅,홍석윤,길현권,김화묵,송지훈

서울대학교 조선해양공학과,서울대학교 조선해양공학과,수원대학교 기계공학과,방위사업청 함정사업부 전투함사업팀,전남대학교 조선해양공학전공

Keywords: High value-added vessel, Cabin, Mini reverberant chamber, Transmission loss, Multi-complex panel

핵심용어: 고부가가치선, 선실, 간이잔향실, 투과 손실, 복합패널

Abstract

Recently, as the importance of the interior noise in a ship cabin has risen, ship builders have becomeconcerned about the use of noise reduction panels to reduce cabin noise. The results of previous researches have been based on analytical and experimental methods using simple sandwich panels. However, panel structures are becoming more complex to improve the transmission loss. Thus, researches that analyze the transmission loss of a panel are reaching the limit of study. This paper reports on research that was performed to determine the sound transmission characteristics of multi-complex panels applicable to high value-added vessels. It presents comparisons between analytical methods and experimental results by using a mini-reverberant chamber with components of sound attenuation panels, including the core and surface materials. The sound transmission loss of multi-complex panels are also analyzed in terms of the influences of the inside perforate plates and air gap thickness on the attenuation. Finally, the multi-complex panel with the highest noise attenuation is proposed based on the analysis results and experimental results in mini-reverberant chamber, which wereverified using a real-size reverberant chamber.