Performance improvement of a vibration driven system for marine vessels
Performance improvement of a vibration driven system for marine vessels
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DOI：
10.1007/s11044-015-9465-8
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发表时间：
2015-06
影响因子：
3.4
通讯作者：
R. Muscia
中科院分区：
文献类型：
--
作者：
R. Muscia
本文介绍了部分或全部浸没在水中的物体在振动下产生直线运动的可能性，而不使用螺旋桨的一些发展。该运动通过装备有反向旋转质量的装置获得，该反向旋转质量安装在容器中，该容器沿纵向方向沿着振动。船体有一个形状合适的船尾。该研究认为，分析评估的能量，推进系统消耗的性能。另一个目的是最大化系统的速度，同时保持与装置的运动方程相关的某些参数不变，并适当地分配反向旋转的质量。这一结果是通过使用椭圆齿轮将运动从驱动电机传递到双对反向旋转的质量来获得的。这样的解决方案允许我们根据某些定律在每次旋转期间达到反向旋转质量的角速度的可变性，这些定律使优选地沿着相对于相反方向的方向沿着施加到容器的推力最大化，所有这些都是相等的。最后，一个公式来计算推进效率的设备的研究和数值模拟的结果进行了说明。
In this paper some developments concerning the possibility of generating a rectilinear motion of bodies partially or totally submerged subject to vibration, without the use of propellers, are presented. The motion is obtained by a device equipped with counterrotating masses installed in the vessel that vibrates along the longitudinal direction. The hull has a suitably shaped stern. The study considers an analysis for evaluating the energy that the propulsion system consumes in relation to its performances. A further objective was to maximize the speed of the system while keeping certain parameters unchanged relating to the equations of motion of the device and suitably allocating the counterrotating masses. This result is obtained by using elliptical gears to transmit the motion from the driving motor to a double pair of counterrotating masses. Such a solution allows us to reach the variability of the angular velocity of the counterrotating masses during each revolution in accordance with certain laws that maximize the thrust applied to the vessel preferentially along a direction in respect of the opposite one, all being equal. Finally, a formulation to compute the propulsive efficiency of the device study and the results of the numerical simulations carried out are illustrated.