基于单目标解析法橡胶式扭转减振器建模分析

发布时间：2018-10-17 21:45

【摘要】：扭转减振器是削减发动机扭转振动的重要装置,其可有效削减扭转振动对曲轴及动力传递系统其他机构的影响。采用传统双扭摆模型搭建扭转减振器的数学模型,应用单目标设计解析法对橡胶式扭转减振器的结构参数、转动惯量、阻尼和扭转刚度进行分析设计。运用MATLAB和ADAMS对安装扭转减振器前后传动轴在发动机典型工况下的扭振特性进行对比分析;对安装减振器的传动系统减振效果进行分析。结果表明:对于所研究的系统,安装橡胶式扭转减振器的传动轴扭振振幅在许用范围内波动均匀,保证传动轴的可靠安全运行;且在发动机临界转速和最大功率时,减振器将传动轴的扭振角位移控制在许用振幅以下,橡胶式扭振减振器能够达到更好的减振效果。
[Abstract]:Torsional shock absorber is an important device to reduce torsional vibration of engine. It can effectively reduce the influence of torsional vibration on crankshaft and other mechanisms of power transfer system. The mathematical model of torsional shock absorber is built with traditional twisting pendulum model. The structural parameters, moment of inertia, damping and torsional stiffness of rubber torsional damper are analyzed and designed by single objective design analytical method. MATLAB and ADAMS are used to compare the torsional vibration characteristics of the transmission shaft before and after the installation of the torsional shock absorber under typical conditions of the engine, and the vibration absorption effect of the transmission system installed with the damper is analyzed. The results show that, for the studied system, the torsional vibration amplitude of the transmission shaft installed with rubber torsion absorber fluctuates uniformly within the allowable range, which ensures the reliable and safe operation of the drive shaft, and at the critical speed and maximum power of the engine, The torsional angular displacement of the transmission shaft is controlled below the allowable amplitude by the shock absorber, and the rubber torsional vibration absorber can achieve better damping effect.
【作者单位】：柳州铁道职业技术学院;广西科技大学机械工程学院;
【基金】：广西高校科学技术研究项目(KY2015LX741)
【分类号】：TB535.1

【参考文献】