Journal of Hydrospace Technology

The Society of Naval Architects of Korea (대한조선학회)
권호 표지

Effects of Inplane Modes in SEA on Structure-Borne Noise Transmission in Ship Structures

  • Kim, Jae-S. (Acoustics Research Group, Korea Institute of Machinery & Materials) ;
  • Kim, Hyun-S. (Research Group, Korea Institute of Machinery & Materials) ;
  • Kang, Hyun-J. (Acoustics Research Group, Korea Institute of Machinery & Materials) ;
  • Kim, Sang-R. (Research Group, Korea Institute of Machinery & Materials)
  • Published : 1996.05.01
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Abstract

It is normal practice to consider bending wave modes only, when one applies SEA (Statistical Energy Analysis) to ship structures because of complexities in SEA modeling and evaluation of coupling loss factors for inplane modes. According to the result of Tratch[1], the inplane wave modes becomes important for the analysis of a foundation structure as the distance from the source and receiver increases. In this paper, the effect of inplane wave modes on structure-borne noise propagation in ship structures is presented. It is shown that the inplane wave could increase the noise level more than 10 dB compared with the results without inplane wave modes at high frequency bands for compartments far from the source location.

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