Dynamics of a bouncing dimer

被引：67
作者：
Dorbolo, S [1 ]
Volfson, D
Tsimring, L
Kudrolli, A
机构：
[1] Clark Univ, Dept Phys, Worcester, MA 01610 USA
[2] Univ Liege, Dept Phys, GRASP, B-4000 Liege, Belgium
[3] Univ Calif San Diego, Dept Bioengn, La Jolla, CA 92093 USA
[4] Univ Calif San Diego, Inst Nonlinear Sci, La Jolla, CA 92093 USA
来源：
PHYSICAL REVIEW LETTERS | 2005年 / 95卷 / 04期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1103/PhysRevLett.95.044101
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We investigate the dynamics of a dimer bouncing on a vertically oscillated plate. The dimer, composed of two spheres rigidly connected by a light rod, exhibits several modes depending on initial and driving conditions. The first excited mode has a novel horizontal drift in which one end of the dimer stays on the plate during most of the cycle, while the other end bounces in phase with the plate. The speed and direction of the drift depend on the aspect ratio of the dimer. We employ event-driven simulations based on a detailed treatment of frictional interactions between the dimer and the plate in order to elucidate the nature of the transport mechanism in the drift mode.
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页数：4
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