【摘要】 螺旋桨在运转时发出使人的听觉所能接受的有节奏的声调称为谐鸣。产生谐鸣的主要原因是桨叶的随边产生了旋涡 ,且旋涡的频率恰好与桨叶的固有频率相接近时 ,便开始发出清脆的鸣音 ,即发生了共鸣现象。文中介绍船舶营运中因螺旋桨的问题而引起的船体振动或谐鸣现象并探讨其解决办法。更多还原

【Abstract】 The rhythmic voice accepted by people’s hearing when propeller is revolving,is called harmonic ringing,which is caused by the whirlpool of the blade edges,the clear and melodious ringing appears at the close frequency between the whirlpool and the blades;that means resonance.In this paper,hull vibration and harmonic ringing caused by propeller are probed,and some methods are also given to solve the problems.更多还原