Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : October 04, 2019 - October 06, 2019
In order to achieve both high stiffness and light weight of the machine tool structure, ribs and partitions are installed into the main body structure such as columns and beds. However, evaluation of thermal characteristics combined with mechanical characteristics of the structural bodies has not been studied so far. Therefore, this study evaluates thermal and mechanical characteristics of various column structures by simulation with the finite element method. In addition to static and dynamic stiffness of various columns with ribs and partitions, thermal structural stability can be evaluated. The result confirmed that thermal stiffness of columns differs by arrangement of ribs or partitions even if columns have same mechanical stiffness, and thermal stiffness of the entire structure can be expressed by the sum of the thermal stiffness of the basic structure and each rib or partition.
