Design of advanced time-frequency mutual information measures for aerospace diagnostics and prognostics

David Coats, Mohammed A. Hassan, Nicholas Goodman, Vytautas Blechertas, Yong June Shin, Abdel Bayoumi

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

5 Citations (Scopus)

Abstract

Accelerometer data has been gathered from accelerated conditioning in grease lubricated and lubrication deprived gear meshes in AH-64 helicopter intermediate and tail rotor gearbox, which are commonly problematic components of the Apache helicopter platform. These tests were performed in a controlled drive-train research test bed, simulating drive-train conditions to improve diagnostic and prognostic capabilities of Condition Based Maintenance (CBM) practices in Integrated Vehicle Health Monitoring System - Health Usage Monitoring System (IVHMS-HUMS) and other comparable CBM packages, as monitored by a standardized Digital Source Collector (DSC) system. Time-frequency representations of vibration measurement collected from two spaced sensors are used to provide signature analysis of transient system harmonics. Furthermore, the time-frequency mutual information advanced signal processing technique is then proposed and validated using vibration data. The measure advances the development of mutual information health indicators to quantify degradation of the helicopter power train. The AH-64 test systems perform under stress in realistic loading conditions and lifetime accelerated aircraft aging is monitored using the proposed advanced signal processing techniques for baseline tests for comparison with faulted conditions.

Original languageEnglish
Title of host publication2011 Aerospace Conference, AERO 2011
DOIs
Publication statusPublished - 2011 May 13
Event2011 IEEE Aerospace Conference, AERO 2011 - Big Sky, MT, United States
Duration: 2011 Mar 52011 Mar 12

Other

Other2011 IEEE Aerospace Conference, AERO 2011
CountryUnited States
CityBig Sky, MT
Period11/3/511/3/12

Fingerprint

Helicopters
Health
train
systems health monitoring
Signal processing
signal processing
monitoring system
helicopters
vibration
Vibration measurement
AH-64 helicopter
Monitoring
Lubricating greases
maintenance
tail rotors
Accelerometers
health monitoring
Lubrication
signature analysis
Gears

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering
  • Space and Planetary Science

Cite this

Coats, D., Hassan, M. A., Goodman, N., Blechertas, V., Shin, Y. J., & Bayoumi, A. (2011). Design of advanced time-frequency mutual information measures for aerospace diagnostics and prognostics. In 2011 Aerospace Conference, AERO 2011 [5747575] https://doi.org/10.1109/AERO.2011.5747575
Coats, David ; Hassan, Mohammed A. ; Goodman, Nicholas ; Blechertas, Vytautas ; Shin, Yong June ; Bayoumi, Abdel. / Design of advanced time-frequency mutual information measures for aerospace diagnostics and prognostics. 2011 Aerospace Conference, AERO 2011. 2011.
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Coats, D, Hassan, MA, Goodman, N, Blechertas, V, Shin, YJ & Bayoumi, A 2011, Design of advanced time-frequency mutual information measures for aerospace diagnostics and prognostics. in 2011 Aerospace Conference, AERO 2011., 5747575, 2011 IEEE Aerospace Conference, AERO 2011, Big Sky, MT, United States, 11/3/5. https://doi.org/10.1109/AERO.2011.5747575

Design of advanced time-frequency mutual information measures for aerospace diagnostics and prognostics. / Coats, David; Hassan, Mohammed A.; Goodman, Nicholas; Blechertas, Vytautas; Shin, Yong June; Bayoumi, Abdel.

2011 Aerospace Conference, AERO 2011. 2011. 5747575.

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

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Coats D, Hassan MA, Goodman N, Blechertas V, Shin YJ, Bayoumi A. Design of advanced time-frequency mutual information measures for aerospace diagnostics and prognostics. In 2011 Aerospace Conference, AERO 2011. 2011. 5747575 https://doi.org/10.1109/AERO.2011.5747575