공기챔버 위치에 따른 폰툰형 초대형 구조물 유탄성응답 해석

• Published in: Han-guk haeyang gonghak hoeji (Online) Vol. 22; no. 1; pp. 22 - 29
• Main Authors: 홍사영(SA-YOUNG HONG), 경조현(JO-HYUN KYOUNG), 김병완(BYOUNG-WAN KIM)
• Format: Journal Article
• Language: Korean
• Published: 한국해양공학회 2008
• Subjects: 해양공학; Mode superposition method 모드중첩법; Finite element method 유한요소법; Pontoon-type VLFS 폰툰형 초대형 구조물; Hydroelastic analysis 유탄성해석; OWC chamber 진동수주 공기챔버
• ISSN: 1225-0767; 2287-6715

A numerical investigation is made on the effects of the location and shape of the front wall of an OWC(Oscillating Water Column) chamber on the hydroelastic response of a VLFS. Most of the studies on the effects of an OWC chamber on the response of a VLFS have assumed the location of the OWC chamber to be at the front of the VLFS. In the present study, an OWC-chamber is introduced at an arbitrary position in relation to a VLFS to determine the influence of the location and shape of the OWC chamber on the hydroelastic response of the VLFS. A finite element method is adopted as a numerical scheme for the fluid domain. or the finite element method, combined with a mode superposition method, is applied in order to consider the change of mass and stiffness The OWC chamber in a piecewise constant manner. or the facilitated anefficient analysis of The hydroelastic response of the VLFS, as well as the easy modeling of different shape and material properties for the structure. Reduction of hydroelastic response of the VLFS is investigated for various locations and front wall shapes of the owe chamber.