A Dynamic Response Analysis of Tension Leg Platforms in Waves (I) |
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인장계규식 해양구조물의 동적응답해석(I) |
구자삼,김진하,이창호 |
부산수산대학교 선박공학과,부산수산대학교 선박공학과,부산수산대학교 선박공학과 |
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© 1995 The Korean Society of Ocean Engineers
Open access / Under a Creative Commons License
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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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