Investigation on Hydrodynamics of a Truss Spar in South China Sea

Abstract

Abstract: Based on 3D potential theory, dynamic coupled timedomain analysis and hybrid model testing technique, investigations are focused on a 1 500 m deepwater Truss Spar in South China Sea with different sea states for operational loading condition. Hydrodynamic performances of the Spar are well predicted including surge, heave and pitch motions. It can be concluded that lowfrequency response of heave and pitch motions should be taken seriously, as well as the surge motion, which is mainly predominant by low frequency response. While the heave motion response seems relatively moderate. It can satisfy the requirements of offshore oil and gas production.

Key words: truss, Spar, hydrodynamics, low frequency response, hybrid model test

CLC Number:

P 75

ZHANG Lei-1, YANG Jian-Min-1, ZHANG Yan-Fang-2, LIU Pei-Lin-2, 吕Hai-Ning-1 , LIU Jian-Hui-2. Investigation on Hydrodynamics of a Truss Spar in South China Sea[J]. Journal of Shanghai Jiaotong University, 2012, 46(03): 463-467.

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