当前位置: X-MOL 学术J. Vib. Control › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Investigation of dynamic characteristics of rolling particle dampers
Journal of Vibration and Control ( IF 2.8 ) Pub Date : 2020-09-23 , DOI: 10.1177/1077546320957456
Takuya Kuriyama 1 , Masato Saeki 2
Affiliation  

In this article, the investigation of the use of a rolling particle damper under sinusoidal excitation is described. A rolling particle damper is a type of ball vibration absorber and consists of a rotating cylinder placed on a curved track mounted on a primary system. The rotating cylinder is partially filled with granular materials. When the rotating cylinder rolls inside the curved track, the granular materials also move. The friction between the granular materials and the inside wall of the rotating cylinder results in some energy dissipation. A rolling particle damper can be adopted in a harsh environment because it can be operated in a wide temperature range. The effects of the mass ratio, the particle material, and the particle diameter on the damping performance were examined experimentally. To elucidate the behavior of the entire system in detail, a numerical solution using the discrete element method was established. The predicted damping results were compared with experimental results for various mass ratios. In addition, the effect of the frequency ratio on the highest displacement amplitude of the primary system was examined referring to the numerical results.



中文翻译:

滚动颗粒阻尼器的动力特性研究

在本文中,描述了在正弦激励下使用滚动颗粒阻尼器的研究。滚动颗粒阻尼器是一种球型减振器,由旋转圆柱体组成,该圆柱体放置在安装在主系统上的弯曲轨道上。旋转圆柱体部分填充有颗粒状材料。当旋转圆柱体在弯曲轨道内滚动时,粒状物料也会移动。粒状材料和旋转圆筒内壁之间的摩擦会导致一些能量消散。滚动颗粒阻尼器可以在恶劣的环境中使用,因为它可以在较宽的温度范围内运行。实验研究了质量比,颗粒材料和粒径对阻尼性能的影响。为了详细说明整个系统的行为,建立了使用离散元方法的数值解。将预测的阻尼结果与各种质量比的实验结果进行了比较。另外,参照数值结果,研究了频率比对一次系统的最大位移振幅的影响。

更新日期:2020-09-23
down
wechat
bug