CHEN Zhi-yong1; SHI Wen-ku1; SHEN Zhi-hong2; GUO Fu-xiang2; FANG De-guang2
1.Jilin University, State Key Laboratory of Automobile Dynamic Simulation, Changchun 130025, China;2. Nanjing IVECO Motor Company LTD.,Nanjing 210028,China
Abstract: In this paper, the finite element model of body included frame of a light bus is established. The vibration modality of body included frame and frame alone are evaluated. The computed results are compared with tests. It shows that the model has represented the vibration characteristics of the original structure. The finite element model for the cavity acoustics is established. The first step modality in the longitudinal direction of the cavity acoustics is evaluated. All of the modalities include body, frame and cavity acoustics are analyzed and compared.