针对船舶轴系的纵向振动情况,研究一种嵌入式船舶推力轴承纵向液压减振器,以隔离螺旋桨脉动激励而引起的船舶轴系纵向振动。首先,建立桨轴系统的动力学模型,分析船舶推进轴系纵向减振特点;其次,提出液压减振器模型,开展动力学分析并提出动刚度计算方法;最后开展系统减振效果验证试验,结果表明推力轴承集成纵向液压减振器后可明显降低轴系纵向振动,为船舶轴系声学设计提供方法。
To reducing axial vibration induced by the pulse thrust excitation from propellera hydraulic shock absorber embedded in ship's thrust bearing was introduced. Firstly, the model of propeller-shaft isolation system was set up, and the characteristic of axial vibration was analyzed. Secondly, the dynamic model of hydraulic shock absorber was designed and the computing method of stiffness was proposed. Finally, experiment analysis of thrust bearing with hydraulic shock absorber was developed, the result demonstrated that the designed absorber can reduce the axial vibration effectively, providing a method for the acoustic design of ship's shaft.
2016,38(3): 59-62 收稿日期：2015-06-29
DOI：10.3404/j.issn.1672-7619.2016.03.013
分类号：U664.21
作者简介：刘伟(1985-),男,硕士,工程师,从事船舶推进技术研究。
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