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- This paper presents an analytical study on the displacement behavior safety of cylindrical hollow rollers. Using the finite element method, the hollow roller with Y-shaped column structures between three tubes has been developed to analyze the displacement behavior safety. For the same dimension and weight of two hollow roller models, the displacement behavior safety of a typical hollow roller is lower 4~6.6% than that of the newly designed hollow roller with Y-shaped column structures between three tubes. Thus, this paper rec-ommends Y-shaped hollow roller for increasing the roller strength safety and decreasing a total roller weight, which may save a consuming electrical energy.Key words : cylindrical hollow roller, Y-shaped column, displacement behavior safety, FEM 1) I.        ,       (cylindrical roller)          . † Corresponding author:ckkim_hongik@nate.com Copyright ⓒ 2014 by The Korean Institute of Gas

A Study on the Displacement Behavior Safety of Cylindrical Hollow Rollers