Use of Tach from Vibration to Estimate Bearing Spall Length

Eric Bechhoefer, Omri Matania, Jacob Bortman

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

Abstract

Vibration analysis is often used for bearing fault diagnostics. Envelope analysis or other cyclo-stationary processes can capture a fault feature or condition indicator that is correlated to the spall length. However, no study has defined a process for estimating spall length on real-world data. The problem is that the spall length is a time-domain property of the signal. This paper generates a synthetic tachometer signal from the fault itself. It is synchronous to the rolling element exit from the spall, allowing for a time-domain representation of waveform using the time synchronous average. From this, an estimate of the length of the bearing fault can be determined.

Original languageEnglish
Title of host publicationProceedings of the Annual Conference of the Prognostics and Health Management Society, PHM
EditorsChetan S. Kulkarni, Marcos E. Orchard
PublisherPrognostics and Health Management Society
Edition1
ISBN (Electronic)9781936263059
DOIs
StatePublished - 5 Nov 2024
Event16th Annual Conference of the Prognostics and Health Management Society, PHM 2024 - Nashville, United States
Duration: 10 Nov 202415 Nov 2024

Publication series

NameProceedings of the Annual Conference of the Prognostics and Health Management Society, PHM
Number1
Volume16
ISSN (Print)2325-0178

Conference

Conference16th Annual Conference of the Prognostics and Health Management Society, PHM 2024
Country/TerritoryUnited States
CityNashville
Period10/11/2415/11/24

ASJC Scopus subject areas

  • Information Systems
  • Electrical and Electronic Engineering
  • Health Information Management
  • Computer Science Applications

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