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Study of a vibrating propulsion system for marine vessels: Evaluation of the efficiency for a boat 13 m long

机译:船用振动推进系统的研究:评估13 m长船的效率

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摘要

This paper illustrates recent advancements relative to a non-conventional propulsion system for boats and is based on two previous papers ofudthe author presented at a conference (see Muscia, 2015a,b). The system does not consider propellers and utilizes the vibration generated by twoudor more pairs of counter rotating masses. The resultant of the centrifugal forces applies an alternate thrust to the hull that oscillates forward andudbackward along the longitudinal axis of the boat. The different hydrodynamic drag forces that oppose to the oscillation produce a prevalentlyudforward motion of the vessel. The vibration that causes the motion can be suitably defined to maximize the forward displacement and theudefficiency propulsion of the system. This result is obtained by using elliptical gears to rotate the counter rotating masses. The computation of theudpropulsion efficiency is based on a suitable physical mathematical model. Correlations between numerical experiments on models and possibleudfull scale application are discussed. Some remarks in relation to practical applications and critical issues of the propulsive solution are illustrated.udThe results have been obtained with reference to a CAD model of a real boat already manufactured whose length is approximately equal to 13 m.udCopyright © 2016 Society of Naval Architects of Korea. Production and hosting by Elsevier B.V. This is an open access article under theudCC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
机译:本文说明了相对于非常规船用推进系统的最新进展,并基于作者在一次会议上发表的前两篇论文(见Muscia,2015a,b)。该系统不考虑螺旋桨,而是利用两对或更多对反向旋转质量产生的振动。离心力的合力向船体施加交替的推力,该推力沿船的纵轴向前和向后摆动。抵抗振荡的不同的流体动力阻力产生了船的普遍向前运动。可以适当地定义引起运动的振动,以使系统的向前位移和低效率推进最大化。通过使用椭圆齿轮旋转反向旋转质量块可获得此结果。推进效率的计算基于合适的物理数学模型。讨论了模型上的数值实验与可能的超大规模应用之间的相关性。说明了与实际应用和推进解决方案的关键问题有关的一些说明。 ud参考已经制造的真实船的CAD模型获得的结果,该船的长度大约等于13 m。 ud版权所有©2016 Society韩国海军建筑师。 Elsevier B.V.的生产和托管。这是 udCC BY-NC-ND许可(http://creativecommons.org/licenses/by-nc-nd/4.0/)下的开放获取文章。

著录项

  • 作者

    Muscia Roberto;

  • 作者单位
  • 年度 2017
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  • 原文格式 PDF
  • 正文语种 eng
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