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Discrete element method model ***** ***
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JOURNAL OF SOUND AND VIBRATION
¾í: 333  ÆÚ: 23  Ò³: 6024-6037
DOI: 10.1016/j.jsv.2014.07.011
³ö°æÄê: NOV 24 2014
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»áÒé: 3rd International Conference on Vibro-Impact Systems and Systems with Non-Smooth Interactions
»áÒ鵨µã: Leinsweiler, GERMANY
»áÒéÈÕÆÚ: JUL 23-27, 2013
»áÒéÔÞÖúÉÌ:Int Ctr Vibro Impact Syst; Karlsruhe Inst Technol
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Bean bag dampers (BBDs) have been widely applied in engineering to attenuate the vibration of a structural system, but the theoretical analysis on BBDs has been scarcely reported because of their nonlinear damping performance and complex mechanism. In this work, a three-dimensional model of a BBD was established based on the discrete element method (DEM); its flexible boundary was discretized. The model was verified by comparing simulation with test data. Based on the model, the selection of proper particle diameter on the flexible boundary of the BBD was discussed first, and then the effects of internal particle size of the BBD, the BBD's tightness and the gap between BBD and the inner wall of its enclosure on the energy dissipation capacity were studied. Moreover, the filling ratio of BBD (total internal particles' volume/the flexible boundary's capacity) was defined to quantitatively describe the tightness of BBD, and the effects of the internal particle size, the natural frequency of primary system and the enclosure size on the optimum tightness of the BBD were also considered. The results can be used as a guide in the design of BBDs. (C) 2014 Elsevier Ltd. All rights reserved.
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KeyWords PlusARTICLE DAMPERS; SIMULATION; VIBRATIONS
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ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD, 24-28 OVAL RD, LONDON NW1 7DX, ENGLAND
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Ñо¿·½Ïò:Acoustics; Engineering; Mechanics
Web of Science Àà±ð:Acoustics; Engineering, Mechanical; Mechanics
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ÎÄÏ×ÀàÐÍ:Article; Proceedings Paper
ÓïÖÖ:English
Èë²ØºÅ: WOS:000341675200009
ISSN: 0022-460X
µç×Ó ISSN: 1095-8568
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Impact Factor (Ó°ÏìÒò×Ó): Journal Citation Reports®
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Web of Science ºËÐĺϼ¯ÖÐµÄ "ÒýÓõIJο¼ÎÄÏ×": 21
Web of Science ºËÐĺϼ¯ÖÐµÄ "±»ÒýƵ´Î": 0
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