Running Damage Extraction (RDE) technique on the segmentation of variable amplitude fatigue loading data

Zulkifli Mohd Nopiah, Mohd Noor Baharin, Shahrum Abdullah, Muhammad Ihsan Khairir, Lennie Abdullah

Research output: Contribution to journalArticle

Abstract

The abrupt changes are the changes that occur at a time instant at which properties suddenly change, but before and after which properties are constant in some sense. Whilst, the detection of abrupt changes refers to tools that help in decide whether such a change occurred in the characteristics of the considered subject. Running Damage Extraction (RDE) Algorithm is a new technique that was developed based on the fatigue damage calculation in detecting the abrupt changes. The objective in this study is to understand the behaviour fatigue damage that has been extracted by using RDE algorithm. For the purpose of this study, a collection of nonstationary data that exhibits a random behaviour was used. This random data was measured in the unit of microstrain on the lower suspension arm of a car. Experimentally, the data was collected for 60 seconds at a sampling rate of 500 Hz, which gave 30,000 discrete data points. By using a scatter diagram, value of Root Mean Square (RMS) and kurtosis was constructed. The result of the study indicates that the behaviour of fatigue damaging in different types of road are various between each other.

Original languageEnglish
Pages (from-to)43-47
Number of pages5
JournalAdvanced Science Letters
Volume15
Issue number1
DOIs
Publication statusPublished - Aug 2012

Fingerprint

Fatigue damage
fatigue
Fatigue
segmentation
Fatigue Damage
damages
Segmentation
Damage
Fatigue of materials
damage
Scatter diagram
Railroad cars
Discrete Data
Kurtosis
Sampling
Instant
Mean Square
Suspensions
Roots
automobile

Keywords

  • Abrupt changes
  • Kurtosis
  • Nonstationary data
  • RDE algorithm
  • RMS
  • Scatter diagram

ASJC Scopus subject areas

  • Education
  • Health(social science)
  • Mathematics(all)
  • Energy(all)
  • Computer Science(all)
  • Environmental Science(all)
  • Engineering(all)

Cite this

Running Damage Extraction (RDE) technique on the segmentation of variable amplitude fatigue loading data. / Mohd Nopiah, Zulkifli; Baharin, Mohd Noor; Abdullah, Shahrum; Khairir, Muhammad Ihsan; Abdullah, Lennie.

In: Advanced Science Letters, Vol. 15, No. 1, 08.2012, p. 43-47.

Research output: Contribution to journalArticle

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