【摘要】 本文给出了一种新的节能减振船尾——涡尾的实船振动测试结果,分析了这种船型尾体形状与螺旋桨的相互作用及其产生的消振效果;指出了涡尾船不仅推进效率高,节能指标显著,而且振动小,为船舶节能及尾部的减振研究设计提供了有益的参考。更多还原

【Abstract】 The paper describes the full-scale vibration measurement of a cochleachanneled stern ship. An analysis of the interaction of ship hull and propellets and reduction of vibration are given.From the full-scale trials it shows that the cochlea-channeled stern not only yields a high propulsive efficiency (ship′s QPC=0.78), the stern vibration can also be reduced. The vertical acceleration of vibration of the stern is about 1/3 of that of conventional ship stern.Ship hull, main engine and propeller can be matched effectively for this new ship stern, so as the power of engine is saved and the.stern vibration is reduced. A design method is recommeded for ship designers to reduce vibration of ship stern.更多还原