【作者】 侯志强； 侯书军； 李慨； 贾力伟； 赵雪涛； 郭晓庆；

【Author】 Hou Zhi-qiang,Hou Shu-jun,Jia Li-wei,Zhao Xue-tao,Guo Xiao-qing,Cui Li-hua (College of Mechanical Engineering,Hebei University of Technology,Tianjin,300130,China)

【机构】 河北工业大学机械工程学院；

【摘要】 活塞式颗粒减振器是颗粒减振器中的重要一种,它具有减振频带宽、环境应用范围广、对机械振动系统结构改动小等许多突出的优点。本文采用基于离散单元法的数值仿真研究与实验研究相结合的方法,对三种不同结构形式的活塞式颗粒减振器的减振性能进行研究,通过对比得到了当活塞杆头部形状改变时机械振动系统减振效果的变化规律以及活塞杆与减振颗粒之间相互作用规律。更多还原

【Abstract】 A piston-based particle damper is an important particle damper.As the particle damper likes,the piston-based particle damper has a lot of outstanding advantages,such as wide damping frequency band,extensive environment adaptability,small structure modification to the initial mechanical vibration system,and so on.In this paper,the damping performance of three piston-based particle dampers with different structure are investigated using the method of combination of numerical simulation research based on the discrete element method and experimental research.After comparison,we can get the law how the piston end’s shape affects on the damping performance of the mechanical vibration system,and the law how the piston interacts with damping particles.更多还原