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Mobility Assessment of Equipment Foundation using Fluid-loaded Whole Ship Model

접수 전선 모델을 이용한 장비 받침대 모빌리티 평가

  • Lee, Dong-Sup (Department of Naval Architecture & Ocean Engineering, Pusan National University) ;
  • Cho, Dae-Seung (Department of Naval Architecture & Ocean Engineering, Pusan National University) ;
  • Kim, Kookhyun (Department of Naval Architecture & Ocean Engineering, Tongmyong University)
  • 이동섭 (부산대학교 조선해양공학과) ;
  • 조대승 (부산대학교 조선해양공학과) ;
  • 김국현 (동명대학교 조선해양공학과)
  • Received : 2013.05.20
  • Accepted : 2014.01.16
  • Published : 2014.06.20

Abstract

The fluid loading effect has been investigated for the shipboard equipment foundation mobility with finite element model. For the purpose, two kinds of finite element models for 60m class ship have been developed: global and local model. The former is for low frequency range and the latter for middle frequency range. These finite element models contain added mass explaining fluid loading effect. Added mass has been implemented with virtual mass matrix derived from Laplace equation governing fluid surrounding ship hull. The mobility assessment result for diesel generator foundation of the objective model shows that the fluid loading effect should be considered, especially in low frequency range, to more accurately assess shipboard equipment foundation mobility.

Keywords

References

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