Research on Aircraft Aluminum Alloy Structure Corrosion Fatigue Life Based on Artificial Neural Net Theory

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Abstract:

Ther BP neural net model which is a branch of artificial neural net theory was adopted to analyse the problem of aircraft LY12CZ structure corrosion fatigue life considering the effect of stress level and corrosion environment,and Newton interpolation algorithm was used to increase the quantity and enhance the quality of BP net model training data. The application result show that the BP net model can simulate the value and development trend of corrosion fatigue life with higher precision contrast to the traditional method of exponential function fitting.

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1159-1162

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June 2012

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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