접수 전선 모델을 이용한 장비 받침대 모빌리티 평가
Mobility Assessment of Equipment Foundation using Fluid-loaded Whole Ship Model
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참고문헌
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초록
The fluid loading effect has been investigated for the shipboard equipment foundation mobility with finite element model. For thepurpose, two kinds of finite element models for 60m class ship have been developed: global and local model. The former is for lowfrequency range and the latter for middle frequency range. These finite element models contain added mass explaining fluid loadingeffect. 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 beconsidered, especially in low frequency range, to more accurately assess shipboard equipment foundation mobility.
Abstract
The fluid loading effect has been investigated for the shipboard equipment foundation mobility with finite element model. For thepurpose, two kinds of finite element models for 60m class ship have been developed: global and local model. The former is for lowfrequency range and the latter for middle frequency range. These finite element models contain added mass explaining fluid loadingeffect. 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 beconsidered, especially in low frequency range, to more accurately assess shipboard equipment foundation mobility.
참고문헌 (6)
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- 김국현, "선박 장비 받침대의 동강성 평가를 위한 유한요소 모델링과 해석 인자에 관한 연구", 대한조선학회 논문집, 47(6), pp.808~812 (2010), 대한조선학회
- Korean Register of shipping, "Guideline for Control of Ship Vibration and Noise", Korean Register of shipping, ~ (1997)
- MSC, "MSC.Nastran 2010 Dynamic Analysis User’s Guide", MSC.Software, ~ (2010)
- Petersson, B., "Structure-borne Sound Transmission from Machinery to Foundation" (1980), Chalmers University of Technology