Numerical Analysis of Wave-induced Motion of Floating Pendulor Wave Energy Converter

Title & Authors
Numerical Analysis of Wave-induced Motion of Floating Pendulor Wave Energy Converter
Nam, Bo-Woo; Hong, Sa-Young; Kim, Ki-Bum; Park, Ji-Yong; Shin, Seung-Ho;

Abstract
In this paper, the wave-induced motion characteristics of a floating pendulor are investigated numerically. A floating pendulor is a movable-body-type wave energy converter. This device consists of three main parts (floater, pendulum, and damping plates). In order to obtain the hydrodynamic coefficients and wave exciting forces acting on floating bodies, a higher-order boundary element method (HOBEM) using a wave Green function is applied to the present problems. The hinged motion of a pendulum is simulated by applying the penalty method. In order to obtain a more realistic motion response for a pendulor, numerical body damping is included. First, the wave force and motion characteristics of just a floater are observed with respect to different shape parameters. Then, a coupled analysis of a floater, pendulum, and damping plates is carried out. The relative pitch velocity and wave forces acting on the floating pendulor are compared with those of a fixed pendulor.
Keywords
Floating pendulor;Wave energy converter;Wave-induced motion;Higher-order boundary element method(HOBEM);Coupling analysis;
Language
Korean
Cited by
1.
파력발전장치 설계를 위한후포 연안의 파랑 분석 및 스펙트럼 추정,권혁민;조홍연;정원무;

한국해안해양공학회논문집, 2013. vol.25. 3, pp.147-153
2.
동해 연안 파력 부존량의 시간적 및 공간적인 변동 양상,정원무;조홍연;오상호;김상익;

한국해안해양공학회논문집, 2013. vol.25. 5, pp.311-316
3.
부유식 진자형 파력발전장치의 연결부 최종강도해석,손정민;천호정;신승호;홍기용;

한국해양환경ㆍ에너지학회지, 2014. vol.17. 1, pp.36-41
4.
부유식 파력발전구조물의 운동 저감부 형상설계에 관한 수치 및 실험적 연구,박지용;남보우;홍사영;신승호;

한국해양환경ㆍ에너지학회지, 2014. vol.17. 2, pp.81-89
5.
등부표를 이용한 파력발전에 관한 실험적 연구,오남선;정신택;고동휘;

한국해안해양공학회논문집, 2015. vol.27. 1, pp.50-55
6.
대형 부유식 파력-해상풍력 복합발전 구조물의 극한환경 운동 성능에 대한 실험적 연구,김경환;홍장표;박세완;이강수;홍기용;

한국해양환경ㆍ에너지학회지, 2016. vol.19. 1, pp.7-17
1.
Ultimate Strength Analysis of Connections of Floating Pendulum Wave Energy Converter, Journal of the Korean Society for Marine Environment & Energy, 2014, 17, 1, 36
2.
An Experimental Study on Dynamic Performance of Large Floating Wave-Offshore Hybrid Power Generation Platform in Extreme Conditions, Journal of the Korean Society for Marine Environment and Energy, 2016, 19, 1, 7
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