In this study, the fatigue and vibration analysis were performed by using Solidworks program to investigate the damage percentage, life cycle and vibration mode depending on the types and positions of load applied to the table (Cases 1, 2, 3, 4). The farther the point of action of the load was, the more the fatigue damage and stability of the table were greatly reduced. The life cycles of Case 1 and 4 were over 100,000 cycles and the fatigue damage was less than 70%. From the vibration analysis, five modes and natural frequencies of Case 1 were confirmed. As the natural frequency increases, the shape of the corresponding mode is predicted not to be deformed.

Prior to the experimental and production stages of the center pillar, a structural analysis must be carried out at the design stage. The commercial software for the structural analysis at the design stage provides benefits such as cost-effective and time economy. In this study, the structural analysis was performed to investigate the stress and displacement characteristics of the center pillar for five types of the applied loads using SolidWorks. The equivalent stress was relatively larger on the outside plate than the inside plate. The maximum equivalent stress according to the change of the applied loads increased linearly in the range of 47~181%. The deformation was larger at the upper end of the center pillar, and the maximum displacement was linearly increased in the range of 35~187%. The analysis results of the center pillar according to the applied loads show that the location and distribution of the maximum stress and displacement of the center pillar can be predicted.