Fuzzy Analysis of Resonance Frequencies for Structural Inspection of an Engine Cylinder Block

Morteza Mohammadzaheri*, Amirhosein Amouzadeh, Mojtaba Doustmohammadi, Mohammadreza Emadi, Ehsan Jamshidi, Mojtaba Ghodsi, Payam Soltani

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


Summary: A new inspection technique for complex mechanical structures is proposed in this paper, where a fuzzy inference system carries out structural inspection. The inputs to the fuzzy inference system are the elements of a fault signature, an array of numbers prepared with use of below 5 kHz resonance frequencies of faultless and a number of faulty specimens. Advantage: Below 5 kHz resonance frequencies are easier and less expensive to obtain compared to higher frequency ones. Limit: Due to high expenses of experiments, reliable finite element models were alternatively used to obtain resonance frequencies of the faulty specimens. Results: The developed fuzzy inference system in this research accurately located an under-surface fault in an engine cylinder block.

Original languageEnglish
Pages (from-to)266-276
Number of pages11
JournalFuzzy Information and Engineering
Issue number3
Publication statusPublished - Jun 28 2021


  • cylinder block
  • fuzzy
  • resonance frequencies
  • structural inspection
  • Vibration

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Theoretical Computer Science
  • Information Systems
  • Logic
  • Management Science and Operations Research
  • Industrial and Manufacturing Engineering
  • Artificial Intelligence
  • Applied Mathematics


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