Design of Composite Material Center Frame for Low-Floor Bus

초록

The center frame of the low floor bus was designed to consider Korean physical standard, passenger capacity (standee, seated, handicapped), and KMVSS (Korean motor vehicle safety standard). It was also designed to have light-weight sandwich structure with glass fabric/epoxy resin skins, aluminum honeycomb cores and inner-frames. For the designed center frame, strength and stiffness were evaluated by finite element analysis. After manufacturing the prototype of the center frame, several tests were performed. Test results were compared with that of FEA analysis results, and the design validity of the center frame were evaluated.