硅油-橡胶并联减振器对轴系扭振性能的影响研究

摘要

The aim of this paper is to study the influence of parameters of silicone oil-rubber parallel dampers on torsional vibration,of which general inertia is equal to single torsional vibration damper.Firstly,a detailed procedure for three degrees of freedom calculation model is proposed,and an optimization algorithm,targeting the minimum torsional amplitude magnification,is presented.Then the following part discusses the influence of damping ratios,inertia parameters and frequency tone of this complex damper on the torsional amplitude.%将单级扭转减振器改造成惯量总和不变的硅油-橡胶二级并联减振器,并分析该复合减振器的参数对扭转振幅的影响.首先介绍了发动机轴系安装该种复合减振器后的简化模型及扭转振幅计算公式,以曲轴扭转振幅放大系数最优为目标,提出了开发设计复合减振器的优化算法,并分别讨论了橡胶减振器及硅油减振器的阻尼比、橡胶减振器的定调比以及二者的惯量比对扭转振幅放大系数曲线的影响.