Investigation of Hydroelastic Ship Responses of An ULOC in Head Seas 被引量：1

Investigation of Hydroelastic Ship Responses of An ULOC in Head Seas

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摘要 Investigation of hydroelastic ship responses has been brought to the attention of the scientific and engineering world for several decades. There are two kinds of high-frequency vibrations in general ship responses to a large ocean-going ship in its shipping line, so-called springing and whipping, which are important for the determination of design wave load and fatigue damage as well. Because of the huge scale of an ultra large ore cartier （ULOC）, it will suffer seldom slamming events in the ocean. The resonance vibration with high frequency is springing, which is caused by continuous wave excitation. In this paper, the wave-induced vibrations of the ULOC are addressed by experimental and numerical methods according to 2D and 3D hydroelasticity theories and an elastic model under full-load and ballast conditions. The influence of loading conditions on high-frequency vibration is studied both by numerical and experimental results. Wave-induced vibrations are higher under ballast condition including the wave frequency part, the multiple frequencies part, the 2-node and the 3-node vertical bending parts of the hydroelastic responses. The predicted results from the 2D method have less accuracy than the 3D method especially under ballast condition because of the slender-body assumption in the former method. The applicability of the 2D method and the further development of nonlinear effects to 3D method in the prediction of hydroelastic responses of the ULOC are discussed. Investigation of hydroelastic ship responses has been brought to the attention of the scientific and engineering world for several decades. There are two kinds of high-frequency vibrations in general ship responses to a large ocean-going ship in its shipping line, so-called springing and whipping, which are important for the determination of design wave load and fatigue damage as well. Because of the huge scale of an ultra large ore cartier （ULOC）, it will suffer seldom slamming events in the ocean. The resonance vibration with high frequency is springing, which is caused by continuous wave excitation. In this paper, the wave-induced vibrations of the ULOC are addressed by experimental and numerical methods according to 2D and 3D hydroelasticity theories and an elastic model under full-load and ballast conditions. The influence of loading conditions on high-frequency vibration is studied both by numerical and experimental results. Wave-induced vibrations are higher under ballast condition including the wave frequency part, the multiple frequencies part, the 2-node and the 3-node vertical bending parts of the hydroelastic responses. The predicted results from the 2D method have less accuracy than the 3D method especially under ballast condition because of the slender-body assumption in the former method. The applicability of the 2D method and the further development of nonlinear effects to 3D method in the prediction of hydroelastic responses of the ULOC are discussed.

作者 WANG Xue-liang Pandeli TEMAREL HU Jia-jun GU Xue-kang 汪雪良;Pandeli TEMAREL;胡嘉骏;顾学康(Marine Structure Department, China Ship Scientific Research Center;Fluid-Structure Interactions Group, Faculty of Engineering and the Environment, University of Southampton)

机构地区 Marine Structure Department Fluid-Structure Interactions Group

出处《China Ocean Engineering》 SCIE EI CSCD 2016年第5期687-702,共16页 中国海洋工程（英文版）

基金 supported by China Shipbuilding Industry Corporation the Academy of China Ship Scientific Research Center(Grant No.62101010103)

关键词 hydroelastic ship response EXPERIMENT wave-induced vibration ultra large ore carrier hydroelastic ship response experiment wave-induced vibration ultra large ore carrier

分类号 U661 [交通运输工程—船舶及航道工程] U674.134.1 [交通运输工程—船舶及航道工程]

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