期刊
OCEAN ENGINEERING
卷 287, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.oceaneng.2023.115830
关键词
Asymmetric slamming; Whipping; Hydroelasticity; Oblique wave; Nonlinear wave loads; Container ship
This paper proposes a 3-D nonlinear time-domain hydroelastic analysis method for ship wave loads considering asymmetric slamming, using a 3-D Rankine panel method to solve the seakeeping problem. The interaction between the hull structure and the flow field is considered to accurately predict the hydroelastic response of the hull girder. By calculating asymmetric slamming loads using the Modified Logvinovich Model (MLM), the hydroelastic response of a 21,000-TEU container ship is analyzed, incorporating horizontal bending-torsional coupling vibration, and the mechanism of the slamming-whipping phenomenon is identified.
In this paper, a 3-D nonlinear time-domain hydroelastic analysis method for ship wave loads considering asymmetric slamming is proposed, and a 3-D Rankine panel method is used to solve the seakeeping problem. To accurately predict the hydroelastic response of the hull girder, the interaction between the hull structure and the flow field is considered in the body boundary condition. The motions and sectional loads of the ship are expressed by the superposition of the modal, which is obtained by modal analysis on a 3-D finite element model of the hull. After calculating asymmetric slamming loads using the Modified Logvinovich Model (MLM), the hydroelastic response of a 21,000-TEU container ship is analyzed, which incorporates the horizontal bendingtorsional coupling vibration. Furthermore, the hull motion, slamming force, and section load are analyzed in detail to properly identify the mechanism of the slamming-whipping phenomenon. The results show that asymmetric slamming significantly affects the horizontal-torsional whipping response of the hull, especially when the wave encounter frequency matches the natural frequency.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据