摘要
在船舶轴系实验台上，对分别采用３叶桨、４叶桨情况下轴系横向振动进行了实验研究。结果表明：螺旋桨叶数的不同对弱阻尼轴系横振的共振转速及横振响应的频谱特性影响不大；稳定运转中，弱阻尼轴系横振的基本特点是以轴频为基频的周期性振动，并且还有较强的一阶横振固有频率分量。在低转速下轴系横振以轴频分量和一阶横振固有频率分量为主，在较高转速下还需考虑２倍轴频、３倍轴频分量。
In the paper an experimental research on shafting transverse vibration is proceeded on a test shafting by using three-blade and four-blade propellers. The result shows that different propeller blads number does not obviously effect the critical speed and transverse vibration’s spectrum of the weak damping shafting.The measurements also show that transverse vibration is a periodical vibration that contains multiple sinusoidal components with rotating frequency as ultimate frequency, and has large component at the first critical frequency. Under lower rotating speed the transverse vibration consists largely of components at ultimate frequency and first critical frequency, while under higher rotating speed components at double ultimate frequency and triple ultimate frequency should be taken into consideration besides.
出处
《船舶》
北大核心
1996年第5期38-41,共4页
Ship & Boat
关键词
轴系
横向振动
船舶
推进器
叶片
Propeller.Propeller blade.Shafting transverse vibration. Effect.Experiment research
