A case study: theoretical and experimental analysis of motion characteristics of a trimaran hull form
A case study: theoretical and experimental analysis of motion characteristics of a trimaran hull form
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DOI：
10.1080/17445300701430242
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发表时间：
2007-10
影响因子：
2.1
通讯作者：
K. Hebblewhite-;P. Sahoo;L. Doctors
中科院分区：
文献类型：
--
作者：
K. Hebblewhite-;P. Sahoo;L. Doctors
船舶运动是设计的一个方面，需要高度考虑乘客的舒适度。在过去的二十年里，广泛的研究工作导致了双体船船体形态的垂升和俯仰运动预测的数值和分析方法的发展。然而，在最近的过去，似乎有一个强烈的兴趣在三体船体形式的发展。调查表明，对这种船体形式进行的研究很少，以减少他们在升沉和俯仰中的运动。在本文中，我们研究了侧舷（纵向）交错对典型三体船体的升沉和俯仰运动的影响。为了量化侧舷（外伸臂）相对于中船体的纵向错开的影响，在澳大利亚海事学院船舶流体动力中心进行了实验调查。构建了澳大利亚海事工程公司CRC系统系列的圆舱高速船体形状模型，并对四种不同的纵向交错位置进行了广泛的实验分析和计算机模拟（HYDROS）。研究表明，这种变化和由此产生的旋转半径的变化可能对升沉和俯仰运动产生重大影响。文献调查表明，迄今为止，对三体船船体形式的调查仅限于确定横向和纵向船体位置对阻力特性的影响。在本文范围内进行的调查为研究三体船的侧舷位置对船舶运动的影响提供了一个起点。
Abstract Vessel motion is an aspect of design that requires a high degree of consideration with regard to passenger comfort. Within the last two decades, extensive research work has resulted in development of numerical and analytical methods for the prediction of heave and pitch motions of catamaran hull forms. However, in the recent past, there appears to be a strong interest in the development of trimaran hull forms. Investigations have shown that little research has been conducted on such hull forms to reduce their motions in heave and pitch. In this article, we investigate the effects of the (longitudinal) stagger of the sidehulls on the motions in heave and pitch of a representative trimaran hull. To quantify the effects of longitudinal stagger of the sidehulls (outriggers) with respect to the centrehull, experimental investigations were undertaken at the Australian Maritime College Ship Hydrodynamic Centre. A round-bilge high-speed hull form model of the Australian Maritime Engineering CRC systematic series was constructed and subjected to extensive experimental analysis as well as computer simulations (HYDROS) for four different longitudinal stagger positions. The investigations demonstrated that this variation and the resulting variation in the radius of gyration could have a significant effect on the heave and pitch motions. The literature survey indicated that, to date, investigations on trimaran hull forms have been confined to determining the effects of transverse and longitudinal positions of the sidehulls only on the resistance characteristics. The investigations undertaken within the scope of this article provide a starting point to investigate the effect of the trimaran's sidehull position on the motions of the vessel.