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Research Journal of Applied Sciences

Year: 2007  |  Volume: 2  |  Issue: 5  |  Page No.: 600 - 605

Application of Moving Average Approaches in Analysing Fatigue Road Loading

S. Abdullah, M.D. Ibrahim, A. Zaharim and I. Ahmad

Abstract

This study describes the analysis of fatigue road loading using the Moving Average approaches. Thus, techniques for preserving data associated to the underlying probabilistic properties were introduced. Fatigue damage cumulating is a random variable in essence. The randomness comes from the loading process and fatigue resistance of material. Seldom have models dealing with fatigue damage cumulating considered the co-influence of the two aspects of randomness at the same time. This article has established a probabilistic distribution model of moving average fatigue damage. In the model, the moving average trend can be estimated by smoothing the data to reduce the random variation and randomness at fatigue resistance of material is described by introducing a random variable of a variable amplitude loading sampled at 200Hz. This model can calculate the fatigue damage cumulating distribution after moving.

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