Host: The Japan Society of Mechanical Engineers
Name : Dynamics and Design Conference 2021
Date : September 13, 2021 - September 17, 2021
In this paper, the effect of the blade shape on the efficiency of damping by stirring granular materials. Compared to oil damper, this damper has the advantages of a simple structure, no possibility of granule leakage and no need for periodic maintenance. Granular materials were placed in the space between the cylinder container and the blade. The blade rotated sinusoidally using four-bar linkage. The rotation angle of the blade and the torque caused by the collision force were measured with an angle sensor and a torque sensor, respectively. The granular spherical particles used in this study are made of glass. Five blade shapes were used. It is shown that the stirring torque becomes larger for the fin type blade than for the plate type blade.
