Equivalent Beam Joint Modeling and Vibration Analysis Using Vehicle Side Key Sections

차체 Side Key Section 을 이용한 등가빔 결합부 모델링 및 강성해석

Low vibration characteristics of a vehicle are mainly influenced by the local stiffness of the joint structure beam section. The method of substituting equivalent beam element to spring element for the joint is presented. Formation process of the equivalent beam joint modeling is described in terms of key section properties. To get required dynamic characteristics section properties of the equivalent beam element are set to design variables. The study shows that the equivalent beam joint model can be effectively used for low frequency vibration analysis of a vehicle.