Paper Title:
Vibrational Fatigue Analysis of a Strain Loading Using the Frequency and Wavelet Filtering Methods
  Abstract

This paper presents a comparison work between the filtering methods of fatigue strain loadings using the frequency spectrum and the wavelet transform (WT), in which a raw loading signal can be simplified for purpose of simulation. For this reason, the Fast Fourier Transform (FFT) and the Morlet wavelet algorithms were used in order to transform the vibrational fatigue time series into the frequency domain signal, leading to the observation of the frequency characteristics of the signal. To retain high amplitude cycles in the FFT algorithm, a low pass filter technique was applied to remove the high frequency signals with small amplitude that are non-damaging. The departure of high frequency information smoothed the low amplitude cycles at high frequency events in the fatigue signal. The Butterworth filter was selected as the most efficient filter design as it retained most of the fatigue damage and also had the capability to remove 30 % of the original low amplitude cycles. On the other hand, the Morlet wavelet managed to remove 64 % of the original 59 second signal. This wavelet filtering method removed 34 % more than the similar procedure applied through the FFT approach. Hence, this fatigue data summarising algorithm can be used for studying the durability characteristics of automotive components.

  Info
Periodical
Key Engineering Materials (Volumes 462-463)
Edited by
Ahmad Kamal Ariffin, Shahrum Abdullah, Aidy Ali, Andanastuti Muchtar, Mariyam Jameelah Ghazali and Zainuddin Sajuri
Pages
124-129
DOI
10.4028/www.scientific.net/KEM.462-463.124
Citation
S. Abdullah, E. P. Teuku, Z. N. Mohd., M. N. Zulkifli, "Vibrational Fatigue Analysis of a Strain Loading Using the Frequency and Wavelet Filtering Methods", Key Engineering Materials, Vols. 462-463, pp. 124-129, 2011
Online since
January 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Shahrum Abdullah, Ahmad Kamal Ariffin
Abstract:This paper describes the laboratory accelerated fatigue tests of BS 080A42 steel using the shortened variable amplitude (VA) loading...
1023
Authors: Shu Ying Yin, Li Jia Chen, Xin Wang
Building Materials
Abstract:In order to identify the influence of solid solution, aging and solid solution plus aging treatments on the low-cycle fatigue behavior of the...
883
Authors: R. Oyyaravelu, K. Annamalai, M. Senthil Kumar, C.D. Naiju, Joel Michael
Chapter 23: Mechanical and Electronic Engineering Control
Abstract:Fatigue failure has become a major concern in the automobile and aircraft industry, heavy machinery etc. Failures by fatigue are especially...
1808
Authors: Ewa Marcisz, Adam Niesłony, Tadeusz Łagoda
Chapter 1: Fatigue Life Prediction
Abstract:The paper presents the concept of division of the total strain amplitudes. Simulations were performed for high-alloy steel X6NiCr3220 for...
43