Anomaly detection in aircraft gas turbine engines

Devendra Tolani, Murat Yasar, Asok Ray, Vigor Yang

Research output: Contribution to journalArticlepeer-review

33 Scopus citations


The application of a novel method for early detection of anomalies in complex mechanical systems is discussed. The anomaly detection method is based on symbolic time series analysis (STSA) and its efficacy has been examined on the simulation test bed of a twin-engine propulsion system. the time series data of observed macroscopic variables, generated on the first time scale from the simulation model, are analyzed at slow time scale epochs for each detection of anomalies. the method is found to be more efficient compared to principal component analysis (PCA) and artificial neural network (ANN) methods.

Original languageEnglish (US)
Pages (from-to)44-51
Number of pages8
JournalJournal of Aerospace Computing, Information and Communication
Issue number2
StatePublished - Feb 2006

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering
  • Computer Science Applications
  • Electrical and Electronic Engineering


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