Kevin G. Tomás, Ramiro E. Suarez, Julián M. Gómez-Paccapelo, María Victoria Ferreyra, Luis A. Pugnaloni
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引用次数: 0
Abstract
A granular damper consists in a container partially filled with solid particles that attenuate vibrations thanks to the multiple dissipative particle–particle collisions. These dampers have been investigated for decades because they are affordable, require low maintenance and can operate in harsh environments where viscous dampers fail. However, the nonlinear response of granular dampers, which includes chaotic dynamics and sharp transitions in loss factor, makes it difficult to predict their final performance when attached to the primary vibrating structure. To some extent, this has hampered widespread utilization of granular dampers in the industry. We show that a cone-in-cone design of such dampers can lead to an essentially linear response, which is compatible with a simple force law.
期刊介绍：
Although many phenomena observed in granular materials are still not yet fully understood, important contributions have been made to further our understanding using modern tools from statistical mechanics, micro-mechanics, and computational science.
These modern tools apply to disordered systems, phase transitions, instabilities or intermittent behavior and the performance of discrete particle simulations.
>> Until now, however, many of these results were only to be found scattered throughout the literature. Physicists are often unaware of the theories and results published by engineers or other fields - and vice versa.
The journal Granular Matter thus serves as an interdisciplinary platform of communication among researchers of various disciplines who are involved in the basic research on granular media. It helps to establish a common language and gather articles under one single roof that up to now have been spread over many journals in a variety of fields. Notwithstanding, highly applied or technical work is beyond the scope of this journal.
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