STRENGTH RESEARCH OF MONOCOQUE BUS BODY FRAME STRUCTURE

Abstract

For chassis structure in bus body, the monocoque frame might bring lighter than the single frame. However, the complicated structure of the monocoque frame leads to the requirement of trade-off for strength in crashworthiness design. This paper presents an analysis of simulation of monocoque frame under static loading. First, the 3D and finite element of monocoque bus frame structure are builted by the CATIA and ALTAIR OPTISTRUCT software. Second, the static analysis of bus frame structures is carried out with different boundary and loading conditions as bending, torsing, braking, cornering. The simulation results show the fact that, the highest values of stress and deformation displacement of bus frame with the torsing condition. The bus frame safety requirements of strength and stiffness are also well met.