悬挂式四层摇床床头参数优化设计及动力学仿真分析

Suspended four-layer shaking table head parameter optimization and dynamics simulation

悬挂式摇床不对称系数的取值是决定摇床选别效果优劣的关键。以悬挂式四层摇床为研究对象,利用Matlab的fmincon函数对摇床头的参数进行优化。研究结果表明,不对称系数E由1.405增加到1.595,增加13.5%,提高了摇床选别效率。运用Solid Works-Motion对两种不同摇床头偏心块布置方式下的动力学进行分析比较,找出了偏心块不对称布置摇床头扭摆振动的原因,改进了偏心块的布置方式,对悬挂式摇床的设计提供了参考依据。

The asymmetry coefficient value is the key for the suspended shaking table sorting effect. In terms of suspended four layers shaking table,using Matlab fmincon function to optimize the shaking table head coefficient. The results show that the asymmetry coefficient changes from 1. 405 to 1. 595,an increase of 13. 5%,which improves the shaking table sorting efficiency. Through Solid Works-Motion analysis and comparison for the dynamics of shaking table head under two different eccentric block arrangements,the authors found the torsional pendulum reasons of the shaking table head under the eccentric blocks asymmetrical arrangement,improved the eccentric blocks layout,and provided a reference for the suspended shaking table design.