Supported by The Jiangsu 10th Five-Year scientific tackling key project and The National Natural Science Fund project, and focused on the development of the IVECO A40 new bus, this dissertation systematically studied the key CAE techniques of the structural design dynamics and acoustics of the bus body, which included the modelling method of the finite element (FE) model of the structure of the whole bus body, modification of the FE model based on the modal test, the analyses and optimization of...