| 摘要 |
PURPOSE: A durability evaluating and analyzing method for a vehicle body is provided to evaluate and complement durability of a vehicle in the process of designing the vehicle, so that the performance of the designed vehicle is improved, thereby largely reducing the process, time and manpower required for the development of the vehicle. CONSTITUTION: A durability evaluating and analyzing method for a vehicle includes the steps of preparing a computerized model of a vehicle equal to a designed vehicle and a road profile corresponding to a testing road to carry out a travelling simulation for computing a dynamic load applied to the vehicle body and analyzing multi-objective dynamics(30), computing and analyzing a dynamic stress with relation to finite elements of the vehicle body on the basis of the obtained dynamic load(40), analyzing a damage value of the respective finite elements with relation to the analyzed dynamic stress(51), and computing a fatigue life from the damage value by a miner's rule(52).
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