On the inertial propulsion of floating objects using contra-rotating masses

被引：3

作者：

Provatidis, C. G. ^{[1
]}

机构：

[1] Natl Tech Univ Athens, Sch Mech Engn, GR-15780 Athens, Greece

来源：

MECHANICS RESEARCH COMMUNICATIONS | 2014年 / 62卷

关键词：

Inertial propulsion; Contra-rotating masses; Synchronization; Fluid mechanics;

D O I：

10.1016/j.mechrescom.2014.09.004

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

This paper demystifies the mechanics involved in the propulsion of a floating object in the water due to attached rotating masses. It is shown that a device made of contra-rotating masses may induce adequate water resistance that is capable of offering support to move the object in calm water. The resistance is split into two main components, the former being due to Blasius effect and the latter due to harmonic oscillation. Neglecting the wave-making resistance, a computer model reveals that the maximum distance travelled by the floating object is proportional to the square root of motor speed and highly depends on the cosine of the initial polar angle of the eccentric masses. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：117 / 122

页数：6

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