Using the hybrid kurtosis-based method to correlate strain and vibration signals

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9 Citations (Scopus)

Abstract

This study specifically focuses on the coil spring, one of the automotive suspensions system parts. Under its service life, this component will be driven over different surface profiles that will give different displacements and vibration responses. This paper explores the correlation between the strain signals resulting from displacement and vibration responses when subjected to the variable amplitude loading. This comparative study was implemented using strain-life approach, (ε-N) and Hybrid Integrated Kurtosis-based Algorithm for Z-notch filter Technique (Hybrid I-kaz). The Hybrid I-kaz method provides a two dimensional graphical representation of the measured strain and vibration signal and Hybrid I-kaz coefficient, Z{stroke}h in order to measure the degree of data scattering. An experiment has been performed on an automotive suspension system machine. This study was considered test signals which were excited based on ten different frequencies that were varied from 1 Hz to 10 Hz. A strain gauge of 5 mm in size and an accelerometer were mounted on the inner surface of the coil spring to measure the strain signals and vibration responses due to the loading. The time domain strain signals and vibration signals were then analysed based on the Coffin-Manson model for fatigue damage prediction and the Hybrid I-kaz method. The total fatigue damage and Hybrid I-kaz coefficients, Z{stroke}h for each signal of the different frequencies were compared in order to perform the correlation study. From the analysis, it was found that the strain signal was linearly proportional to the vibration responses.

Original languageEnglish
Pages (from-to)79-90
Number of pages12
JournalWSEAS Transactions on Signal Processing
Volume6
Issue number3
Publication statusPublished - Jul 2010

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Notch filters
Fatigue damage
Strain gages
Accelerometers
Service life
Scattering
Experiments

Keywords

  • Coefficient
  • Correlation
  • Fatigue
  • I-kaz Hybrid
  • Random loading
  • Vibration response

ASJC Scopus subject areas

  • Signal Processing
  • Software
  • Computer Vision and Pattern Recognition
  • Computer Networks and Communications

Cite this

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abstract = "This study specifically focuses on the coil spring, one of the automotive suspensions system parts. Under its service life, this component will be driven over different surface profiles that will give different displacements and vibration responses. This paper explores the correlation between the strain signals resulting from displacement and vibration responses when subjected to the variable amplitude loading. This comparative study was implemented using strain-life approach, (ε-N) and Hybrid Integrated Kurtosis-based Algorithm for Z-notch filter Technique (Hybrid I-kaz). The Hybrid I-kaz method provides a two dimensional graphical representation of the measured strain and vibration signal and Hybrid I-kaz coefficient, Z{stroke}h ∞ in order to measure the degree of data scattering. An experiment has been performed on an automotive suspension system machine. This study was considered test signals which were excited based on ten different frequencies that were varied from 1 Hz to 10 Hz. A strain gauge of 5 mm in size and an accelerometer were mounted on the inner surface of the coil spring to measure the strain signals and vibration responses due to the loading. The time domain strain signals and vibration signals were then analysed based on the Coffin-Manson model for fatigue damage prediction and the Hybrid I-kaz method. The total fatigue damage and Hybrid I-kaz coefficients, Z{stroke}h ∞ for each signal of the different frequencies were compared in order to perform the correlation study. From the analysis, it was found that the strain signal was linearly proportional to the vibration responses.",
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AB - This study specifically focuses on the coil spring, one of the automotive suspensions system parts. Under its service life, this component will be driven over different surface profiles that will give different displacements and vibration responses. This paper explores the correlation between the strain signals resulting from displacement and vibration responses when subjected to the variable amplitude loading. This comparative study was implemented using strain-life approach, (ε-N) and Hybrid Integrated Kurtosis-based Algorithm for Z-notch filter Technique (Hybrid I-kaz). The Hybrid I-kaz method provides a two dimensional graphical representation of the measured strain and vibration signal and Hybrid I-kaz coefficient, Z{stroke}h ∞ in order to measure the degree of data scattering. An experiment has been performed on an automotive suspension system machine. This study was considered test signals which were excited based on ten different frequencies that were varied from 1 Hz to 10 Hz. A strain gauge of 5 mm in size and an accelerometer were mounted on the inner surface of the coil spring to measure the strain signals and vibration responses due to the loading. The time domain strain signals and vibration signals were then analysed based on the Coffin-Manson model for fatigue damage prediction and the Hybrid I-kaz method. The total fatigue damage and Hybrid I-kaz coefficients, Z{stroke}h ∞ for each signal of the different frequencies were compared in order to perform the correlation study. From the analysis, it was found that the strain signal was linearly proportional to the vibration responses.

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