Based on statistical energy analysis, a shipboard noise prediction computer code named NASS (Noise Analysis of Ship by SEA) has been developed. NASS consists of three major parts, ie, source level estimation, geometry generation, and solver module. To prepare the connectivity information among sub-systems such as joint types, joint lengths etc, is one of the most difficult and confusing tasks when applying SEA to ship structures from a practical point of view. The developed code generates such data from nodal coordinates and nodal point definitions of each element so that one can use the preprocessor of a FEM code. Internal data files, containing the acoustical properties of shipboard partitions and structural materials, together with graphic user interfaces provide conveniences to the user. This paper describes some applications of NASS to noise prediction of ships in construction, in addition to the concept and capabilities of the package.

  • Supplemental Notes:
    • PRADS 95, 6th Intl Symposium on Practical Design of Ships and Mobile Units; 17-22 Sept 1995; Seoul, Korea. Procs. Publ by Soc Naval Architects of Korea, ISBN 89-950016-2-3. Vol 2, p 2.1151 [12 p, 7 ref, 10 fig]
  • Authors:
    • Kim, J S
    • Kang, H J
  • Publication Date: 1995


  • English

Subject/Index Terms

Filing Info

  • Accession Number: 00727814
  • Record Type: Publication
  • Source Agency: British Maritime Technology
  • Files: TRIS
  • Created Date: Nov 4 1996 12:00AM