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Numerical analysis of the forces exerted on offshore structures by ship waves

机译:舰船波浪作用于近海结构的数值分析

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摘要

Ship-generated waves can contribute to the fatigue of offshore structures. This paper presents a numerical model for evaluating the forces exerted on a nearby fixed structure by ship-generated waves. The ship waves were modeled using Michell's thin-ship theory (Wigley waves), and the forces were computed using a boundary element method in the time domain. The simulation was validated by comparing its results with those of frequency-domain methods reported in the literature. It was then applied to calculate the forces exerted on a hemisphere by ship waves varying with the ship's speed, dimensions and distance from the hemisphere to the ship's path. Our results indicate that the ship waves have enormous effects on offshore structures and are not neglectable.
机译:船舶产生的波浪会加剧海上结构的疲劳。本文提出了一种数值模型,用于评估舰船产生的波浪作用在附近固定结构上的力。使用米歇尔的薄船理论(威格利波)对船浪建模,并使用时域中的边界元法计算力。通过将仿真结果与文献中报道的频域方法进行比较,验证了仿真结果。然后将其应用于计算随船舶速度,尺寸以及从半球到船舶路径的距离而变化的船波对半球施加的力。我们的结果表明,海浪对近海结构产生了巨大影响,而且不可忽略。

著录项

  • 来源
    《Ocean Engineering》 |2009年第7期|468-476|共9页
  • 作者单位

    State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116023, PR China;

    State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116023, PR China;

    Department of Naval Architecture, Dalian University of Technology, Dalian 116023, PR China;

    State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116023, PR China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    boundary element method; time domain; ship-generated waves; thin-ship theory; wave force;

    机译:边界元法时域船舶产生的波浪薄船理论波浪力;

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