期刊
PMM JOURNAL OF APPLIED MATHEMATICS AND MECHANICS
卷 72, 期 2, 页码 116-125出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jappmathmech.2008.04.014
关键词
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资金
- Russian Foundation for Basic Research [05-01-00647]
- Leading Scientific Schools [NSh-9831.20061]
The rectilinear motions of a two-mass system, consisting of a container and an internal mass, in a medium with resistance, are considered. The displacement of the system as a whole occurs due to periodic motion of the internal mass with respect to the container. The optimal periodic motions of the system, corresponding to the greatest velocity of displacement of the system as a whole, averaged over a period, are constructed and investigated using a simple mechanical model. Different laws of resistance of the medium, including linear and quadratic resistance, isotropic and anisotropic, and also a resistance in the form of dry-friction forces obeying Coulomb's law, are considered. (C) 2008 Elsevier Ltd. All rights reserved.
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