砂粒充てんによる機械構造物の減衰能向上

概要

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The purpose of this study is to propose a practical technique for damping characteristic improvement on the packed with sand. In this paper, the damping characteristics of structures packed with sand are experimentally investigated. The effects of sand size and moisture content on the damping characteristics are examined. The effective damping capacity improvement is achieved by packed sand of small size and dry sand. Also, the generation mechanism of damping capacity is discussed by observing the packed sand. When the moisture content is increase, there is moisture between many packed sand. It is considered that the movement of sand is constrained by moisture between sand. It is shown that the damping capacity is affected by friction and collision characteristics between packed sand.
豊田工業高等専門学校の論文
2006-11-24