Damage Detection Capabilities Based on New Signal Processing Approach

Len M. Gelman, Ivan V. Petrunin, Mike L. Sanderson, Chris P. Thompson

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A new non-traditional signal processing approach to damage detection is presented. The proposed approach consists of using two new variables (monitoring features) simultaneously: the real and imaginary components of the Fourier transform taking into account covariance between these variables. Analytical comparison of the monitoring effectiveness of the proposed approach and three traditional approaches is performed. Numerical modeling and experimental results dealing with the fatigue crack and damping diagnostics in aircraft engine blades based on the proposed approach are presented. It is shown that the proposed approach offers an essential improvement in effectiveness of damage detection in comparison to the traditional approaches.

Original languageEnglish
Title of host publication45th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics & Materials Conference
PublisherAmerican Institute of Aeronautics and Astronautics
Pages4671-4683
Number of pages13
Volume6
ISBN (Electronic)9781624100796
DOIs
Publication statusPublished - 2004
Externally publishedYes
Event45th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics & Materials Conference - Palm Springs, United States
Duration: 19 Apr 200422 Apr 2004
Conference number: 45
https://arc.aiaa.org/doi/book/10.2514/MSDM04

Publication series

NameCollection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
PublisherAmerican Institute of Aeronautics and Astronautics
Volume6
ISSN (Print)0273-4508

Conference

Conference45th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics & Materials Conference
CountryUnited States
CityPalm Springs
Period19/04/0422/04/04
Internet address

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Cite this

Gelman, L. M., Petrunin, I. V., Sanderson, M. L., & Thompson, C. P. (2004). Damage Detection Capabilities Based on New Signal Processing Approach. In 45th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics & Materials Conference (Vol. 6, pp. 4671-4683). (Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference; Vol. 6). American Institute of Aeronautics and Astronautics. https://doi.org/10.2514/6.2004-1952