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J. Ocean Eng. Technol. 1995;9(1):161-172.    

A Dynamic Response Analysis of Tension Leg Platforms in Waves (I)
인장계규식 해양구조물의 동적응답해석(I)
구자삼,김진하,이창호
부산수산대학교 선박공학과,부산수산대학교 선박공학과,부산수산대학교 선박공학과
© 1995 The Korean Society of Ocean Engineers     Open access / Under a Creative Commons License
Keywords: Dynamic Response, Tension Leg Platform, Three Dimensional Source Distribution Method, Structural Damping, Structural Response, Motion Response, Hydrodynamic Interaction
핵심용어: 동적응답, 인장계류식 해양구조물, 3차원 특이점분포법, 구조감쇠, 구조응답, 운동응답, 유체상호간섭
Abstract
A numerical procedure is described fro predicting the motion and structural responses of tension leg platforms(TLPs) in waves. The developed numerical approach is based on a combination of a three dimensional source distribution method and the dynamic response analysis method, in which the superstructure of TLPs is assumed flexible instead of the rigid body assumption used in tow-step analysis method. Both the hydrodynamic interactions among TLP members, such as columns and pontoons, and the structural whole structure are formulated using element-fixed coordinate systems which have the origin at the node of the each hull element and move parallel to a space-fixed coordinate system. Numerical results are compared with the experimental and numerical ones, which are obtained in the literature, concerning the motion and structural responses of a TLP in waves. The results of comparison confirmed the validity of the proposed approach.


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