NDLI: Fatigue life prediction of key structural parts in aeronautics and astronautics based on fuzzy theory

Content Provider	IEEE Xplore Digital Library
Author	Wang Xuliang Nie Hong
Copyright Year	2008
Description	Author affiliation: Nanjing Univ. of Aeronaut. & Astronaut., Nanjing (Wang Xuliang; Nie Hong)
Abstract	For the fuzzy phenomenon during fatigue life prediction of key structural parts in aeronautics and astronautics, membership function is used to denote the fuzziness of fatigue damage caused by the stress nearby fatigue limit. The concept of fuzzy zone of stress is put forward and classified as safety fuzzy zone, economy fuzzy zone and compatibility fuzzy zone according to relative position among fatigue limit and edges of the fuzzy zone of stress. The results of the example show that the accuracy of fatigue life prediction can be largely improved by the method. Choosing safety fuzzy zone and increasing half normal distribution in the example, and setting parameter a = $0.6sigma_{r},$ k = 0.5, the error can be reduced by 51.0% compared to the traditional fatigue life prediction method.
Starting Page	1
Ending Page	4
File Size	500291
Page Count	4
File Format	PDF
ISBN	9781424439089
DOI	10.1109/ISSCAA.2008.4776254
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-12-10
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	fuzzy theory Prediction methods fatigue damage Gaussian distribution Fatigue fuzzy zone of stress Mechanical engineering Stress membership function Information analysis Fuzzy sets Modems Fuzzy set theory Safety fatigue life
Content Type	Text
Resource Type	Article

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