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In allusion to the frame of a certain semi-trailer, through adopting ANSYS software, its stress response, modal response and random vibration response were calculated with FEA method under various load cases. The finite element fatigue analysis was carried out in the form of load spectrum, as well as fatigue life and the stress strain variation laws of the vehicle frame under dynamic loads have been...
This paper researches on the lift mechanism of an engineering car, and uses SimMechanics toolbox and Simulink toolbox to establish a mechanic system simulated model and hydraulic system simulated model; uses subsystem encapsulation technology of Simulink to package the modules; then establishes mechanic-hydraulic coupled model of the lift mechanism and realizes dynamic simulating analysis. It also...
Taking a special vehicle frame as the study object, in allusion to the complex time-consuming FEA computation in the optimization design, the numerical approximation technology of Kriging method is adopted to establish the approximate mapping relationship between design variables of vehicle frame and structural strength, stiffness and weight. The genetic algorithm is employed to perform the optimization...
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