Establishing energy-damage relationship for fatigue data editing of strain loading history

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

This study presents the fatigue data editing (FDE) technique by establishing the relationship between wavelet energy and damage. Wavelet-energy-based FDE techniques have been widely studied but there is no effective guideline to estimate the energy gate value for extraction of high-energy cycles. Hence, the relationship between wavelet energy and fatigue damage needs to be known to accurately predict the gate value. The strain signal was collected from a car suspension coil spring while the car was being driven in a residential area. Continuous wavelet transform was used to compute the wavelet energy in the signal. An energy–damage relationship was established and a gate value was estimated. The results showed damage retention of 97% and signal length reduction of 95% in the mission signal using the estimated gate value. This indicates that the energy-damage relationship is effective for estimating the energy gate value for FDE. Hence, knowing the energy–damage relationship is important in wavelet-energy-based FDE as a guideline for estimating the energy gate value. This significantly improves the efficiency of the FDE process while reducing the duration of the analysis.

Original languageEnglish
Pages (from-to)612-619
Number of pages8
JournalInternational Review of Mechanical Engineering
Volume12
Issue number7
DOIs
Publication statusPublished - 1 Jul 2018

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Fatigue of materials
Railroad cars
Fatigue damage
Wavelet transforms

Keywords

  • Continuous wavelet transform
  • Fatigue damage
  • Fatigue data editing
  • Wavelet energy

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

Establishing energy-damage relationship for fatigue data editing of strain loading history. / Chin, C. H.; Abdullah, Shahrir; Singh, S. S.K.; Mohd Ihsan, Ahmad Kamal Ariffin.

In: International Review of Mechanical Engineering, Vol. 12, No. 7, 01.07.2018, p. 612-619.

Research output: Contribution to journalArticle

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