基于ANSYS Workbench的船用橡胶减振器振动优化设计

Vibration optimization design of marine rubber damper based on ANSYS workbench

文章针对某船用橡胶减振装置水平方向振动大而容易失稳的问题,提出了一种改进橡胶减振器动力学特性的优化设计方案。采用Pro/E软件建立分析模型,将模型导入到ANSYS Workbench结构分析模块中进行有限元分析,以减振橡胶尺寸参数为设计变量,减振装置的水平模态频率为目标函数,通过迭代计算得到橡胶尺寸的最优设计解。然后应用谐响应分析法分别计算优化前、后的减振装置在受到相同水平方向简谐激励力作用下的振动响应。结果表明,优化后的减振装置振幅大幅下降,优化效果明显,可为解决类似问题提供技术参考。

In this paper,an improved design scheme for improving the dynamic characteristics of rubber damper is proposed for a marine rubber vibration damping device with large vibration in the horizontal direction and easy to lose stability.The analysis model was established by Pro/E software,and the model was imported into the ANSYS Workbench structural analysis module for finite element analysis.The damping rubber size parameter was used as the design variable,and the horizontal modal frequency of the damping device was taken as the objective function.The optimal design solution for rubber size.Then,the harmonic response analysis method is used to calculate the vibration response of the vibration damping device before and after optimization under the same horizontal direction.The results show that the amplitude of the optimized damping device is greatly reduced,and the optimization effect is obvious.It can provide technical reference for similar damping device.