Vibro-impact responses of capsule system with various friction models
Vibro-impact responses of capsule system with various friction models
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DOI：
10.1016/j.ijmecsci.2013.03.009
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发表时间：
2013-07-01
影响因子：
7.3
通讯作者：
Wiercigroch, Marian
中科院分区：
文献类型：
--
作者：
Liu, Yang;Pavlovskaia, Ekaterina;Wiercigroch, Marian
本文研究了在不同环境中由胶囊主体与内部质点相互作用构成的冲击振动系统的动力学问题。环境阻力由四种不同的摩擦模型描述，它们考虑了库仑摩擦、粘性阻尼、斯特里贝克效应、预滑动和摩擦记忆。我们的研究主要集中在胶囊动力学的质变上。分叉分析是通过监测质量比变化下的质量速度和每个激励周期内太空舱的平均进程来实现的。通过观察胶囊的运动过程，我们发现可以通过改变胶囊的质量比或在共存吸引子之间切换来实现对系统的定向控制。(C)2013爱思唯尔有限公司。保留所有权利。
The dynamics of the vibro-impact system which consists of a capsule main body interacting with a harmonically driven internal mass in various environments is studied in this paper. The environmental resistance is described by four different friction models which take into account Coulomb friction, viscous damping, Stribeck effect, pre-sliding, and frictional memory. Our investigations are mainly focussed on the qualitative changes in the capsule dynamics. The bifurcation analysis is conducted by monitoring the mass velocity and the average progression of the capsule per period of excitation under variation of the mass ratio. By observing the progression of the capsule, we find that directional control of the system can be achieved either by varying its mass ratio or by switching between co-existing attractors. (c) 2013 Elsevier Ltd. All rights reserved.