Abstract
Taking the high-speed train body as case study in the paper, a new method is put forward to obtain the structure dynamic stresses using dynamic response analysis, in which the acceleration-time history measured by actual operation testing of train on line is taken as exciting source, and then the dynamic response analysis is performed by finite element method. So that, the dynamic stress-time history at the locations concerned for the body structure can be yielded, and used to predict the fatigue life and its reliability for the structure.
