Application of a computational data editing algorithm to summarise fatigue road loadings

Authors:
S. Abdullah;M. Z. Nuawi;A. Zaharim
Affiliations:
Engineering Faculty, Universiti Kebangsaan Malaysia, Selangor, Malaysia;Engineering Faculty, Universiti Kebangsaan Malaysia, Selangor, Malaysia;Engineering Faculty, Universiti Kebangsaan Malaysia, Selangor, Malaysia
Venue:
CEA'07 Proceedings of the 2007 annual Conference on International Conference on Computer Engineering and Applications
Year:
2007

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Abstract

One of the input variables in the durability analysis in automotive research is the load history. Since the nature of fatigue road loadings contain a mixture of high and low amplitude cycles, high amplitude cycles play a part in determining the degree of damage occurring. Therefore, it seems appropriate to see a method to summarise road load data. The process can be performed using a computational algorithm of fatigue data editing, known as Wavelet Bump Extraction (WBE) algorithm. This algorithm was developed for extracting fatigue damaging events, or bumps, from a fatigue road loading in order to produce a shortened signal. Finally, it is important to maintain the fatigue damage of the shortened signal as close to the original signal, with the retention of the original load sequences.