Granular binary mixtures improve energy dissipation efficiency of granular dampers

IF 2.4 3区工程技术

Granular Matter Pub Date : 2023-06-12 DOI:10.1007/s10035-023-01337-8

Nydia Roxana Varela-Rosales, Angel Santarossa, Michael Engel, Thorsten Pöschel

引用次数: 1

Abstract

Granular dampers are systems used to attenuate undesired vibrations produced by mechanical devices. They consist of cavities filled by granular particles. In this work, we consider a granular damper filled with a binary mixture of frictionless spherical particles of the same material but different size using numerical discrete element method simulations. We show that the damping efficiency is largely influenced by the composition of the binary mixture.

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颗粒二元混合物提高了颗粒阻尼器的耗能效率

颗粒阻尼器是用来衰减机械装置产生的不希望的振动的系统。它们由充满颗粒的空腔组成。在这项工作中，我们考虑了一个颗粒阻尼器填充了相同材料但不同尺寸的无摩擦球形颗粒的二元混合物，使用数值离散元法模拟。研究表明，阻尼效率在很大程度上受二元混合物组成的影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Granular Matter MATERIALS SCIENCE, MULTIDISCIPLINARY-MECHANICS

CiteScore

4.30

自引率

8.30%

发文量

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.