Application of feature extraction methods on a CH-53 swashplate bearing

Mor Battat, Jacob Bortman, Renata Klein

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The purpose of this paper is to compare the performance of features in order to diagnose the swashplate bearing of a CH-53 helicopter by vibration analysis. The aim is to examine which features best discriminate between the faulty and the healthy recordings. Signals were recorded on a full scale test rig. The rig is used to simulate the work environment of the swashplate bearing. Results of commonly used statistical moments are shown to provide poor separation between the faulty and the healthy recordings. Specific, bearing oriented, features based on the energy of the bearing tones, are examined in the order and envelope spectra. The results are shown, presenting a significant performance improvement while indicating the importance of the calculation parameters. This work is an initial step for HUMS implementation on aircraft swashplates, future research is required in order to use these features as health indicators.

Original languageEnglish
Title of host publication22nd International Congress on Sound and Vibration, ICSV 2015
PublisherInternational Institute of Acoustics and Vibrations
ISBN (Electronic)9788888942483
StatePublished - 1 Jan 2015
Event22nd International Congress on Sound and Vibration, ICSV 2015 - Florence, Italy
Duration: 12 Jul 201516 Jul 2015

Publication series

Name22nd International Congress on Sound and Vibration, ICSV 2015

Conference

Conference22nd International Congress on Sound and Vibration, ICSV 2015
Country/TerritoryItaly
CityFlorence
Period12/07/1516/07/15

Fingerprint

Dive into the research topics of 'Application of feature extraction methods on a CH-53 swashplate bearing'. Together they form a unique fingerprint.

Cite this