An Experimental Study for the Wave Exciting Force of a Truss Spar

J. Ocean Eng. Technol. 2004;18(6):16-21.

JO HYO-JAE;GOO JA-SAM;CHOI HAN-SUK;PARK JU-YONG;OH TAE-WON;KIM BYUNG-WOO;HA MUN-KEUN;

Division of Ocean System Engineering, Korea Maritime University;Dept. of Naval Architecture and Marine System Engineering, Pukyong National University;Dept. of Naval Architecture and Ocean Engineering, Pusan National University;Division of Ocean System En

Truss Spar의 파강제력에 대한 실험적 연구

조효제;구자삼;최한석;박주용;오태원;김병우;하문근;

한국해양대학교 해양시스템공학부;부경대학교 조선해양시스템공학과;부산대학교 조선해양공학과;한국해양대학교 해양시스템공학부;한국해양대학교 해양시스템공학부;삼성중공업(주) 조선플랜트연구소;삼성중공업(주) 조선플랜트연구소;

Keywords: Truss Spar, Wave Exciting Force, Time Domain Analysis, Singularity Distribution Method, Heave Damping Plate

핵심용어: 트러스형 스파, 파랑강제력, 시간영역해석, 특이점분포법, 상하운동감쇠판

Abstract

This study presents the wave forces for spar platforms. The advantage of a spar platform is that it is easy to manufacture and has excellent to motion characteristics. It is important to precisely determine the wave force acting on spar platforms for their basic design of them. We measur the wave exciting force for both the classic spar and truss spar models, and accomplish the numerical calculation using diffraction theory. The results show that experimental values have good agreement with theoretical values. However it is difficult to accurately estimate the value considering the heave plate of truss spar due to the viscosity.