This article deals with an estimation method of life for vehicle components related to acceleration and road roughness. thereby applying the Weibull distribution function to the frequency distribution service stress. The estimation, which has been made in each case of different component or driving condition, is generalised and simplified with a non-dimensionalised S-N diagram of material. As a result, the fatigue damage factor can be easily found by the diagram consisting of the parameters of distribution shape and material strength at the same time, the estimation of the allowable stress in safe-life design and the evaluation of driving condition are easily established by the use of these parameters from the standpoint of fatigue damage of the components.
Samenvatting