Abstract

In this study, we performed finite element analysis for the design of a medical centrifuge and two-types of centrifuge were compared with each other. The types of centrifuge are 2-arm straight type and 3-arm type. Structural analysis was done with respect to the change of the rotational speed of the rotor of a centrifuge. When the rotor of centrifuge was rotated, the von Mises stress of 2-arm straight type-rotor was compared with the von Mises stress of 3-arm type. The margin of safety was estimated from the result. We found the critical speed of centrifuge from the campbell diagram by modal analysis.

• Keywords: F.E.M(유한요소법),Centrifuge(원심분리기),von Mises Stress(등가응력),2-arm straight type(2-Arm 직선형),3-arm type(3-Arm형),Safety factor(안전계수),Margin of Safety(안전여유),Campbell Diagram(캠벨선도),Modal Analysis(모우드 해석)