群遮效应对海上结构物波漂移力的低减作用

发布时间：2018-03-08 10:30

本文选题：群遮效应　切入点：多浮体　出处：《哈尔滨工程大学学报》2017年11期 　论文类型：期刊论文

【摘要】：针对波浪作用下海上浮式建筑物的波漂移力问题,考虑在海上建筑物周围合理地布设小型浮体群以降低海上建筑物的波漂移力。本文基于波浪交互理论和高阶边界元方法,建立了分析三维多浮体间群遮效应的数值模型。计算结果表明:通过优化外围浮体的尺寸可以降低海上建筑物的波漂移力;本数值模型计入了浮体间的波浪相互干涉作用,对群遮效应的预报更加准确和接近工程实际问题。随着入射波频率的不同,发生群遮效应所对应的外围浮体尺寸不同;群遮效应不仅可以降低所需防护海上建筑物的波漂移力,也可以降低整个浮体群的波漂移力。
[Abstract]:To solve the problem of wave drift force of floating building on the sea under the action of wave, a reasonable arrangement of small floating body group around the building is considered to reduce the wave drift force of offshore building. This paper is based on wave interaction theory and high order boundary element method. A numerical model is established to analyze the group shielding effect between three dimensional floating bodies. The results show that the wave drift force can be reduced by optimizing the size of the outer floating body, and the wave interaction between the floating bodies is taken into account in this numerical model. The prediction of group shielding effect is more accurate and close to the practical engineering problem. With the different frequency of incident wave, the size of the floating body corresponding to the group shielding effect is different, and the group shielding effect can not only reduce the wave drift force of the protective offshore building, The wave drift force of the whole floating body group can also be reduced.
【作者单位】：哈尔滨工业大学(威海)船舶与海洋工程学院;
【基金】：国家自然科学基金项目(11502059) 大连理工大学海岸和近海工程国家重点实验室开放课题基金项目(LP1513) 哈尔滨工业大学科研创新项目(HIT.NSRIF.201726) 水沙科学与水灾害防治湖南省重点实验室基金(2015SS02) 卫星海洋环境动力学国家重点实验室(国家海洋局第二海洋研究所)项目(SOED1514)
【分类号】：P752

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