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Reliability Estimation of the Solid Lubricated Bearing Based on a General Wiener Process and Its Experimental Validation

  • Beihang University
  • Old Dominion University

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

Abstract

Conducting accurate reliability estimation plays an important role for solid lubricated bearings, because they are widely used in highly reliable space applications. This paper proposes a general Wiener process to describe the degradation process for solid lubricated bearings. The performance indicator for solid lubricated bearings is a fusion indicator from several time domain statistics of vibration signal during operation. Mahalanobis Distance (MD) is utilized to fuse these time-domain statistics indicators into one indicator representing the degradation process. Two different time scale functions in drift term and fluctuation term of Wiener process are used to capture the nonlinearity characteristics of degradation process. Bayesian MCMC method is used to estimate all the unknown parameters in the proposed degradation model. Degradation data from experiment is used to validate the model. Results show that general Wiener process degradation model is fit well for the degradation data.

Original languageEnglish
Title of host publicationInnovations in Mechanical Engineering
EditorsJosé Machado, Filomena Soares, Justyna Trojanowska, Erika Ottaviano
PublisherSpringer Science and Business Media Deutschland GmbH
Pages57-67
Number of pages11
ISBN (Print)9783030791643
DOIs
StatePublished - 2022
Event1st International Conference on Innovation in Engineering, ICIE 2021 - Guimarães, Portugal
Duration: 28 Jun 202130 Jun 2021

Publication series

NameLecture Notes in Mechanical Engineering
ISSN (Print)2195-4356
ISSN (Electronic)2195-4364

Conference

Conference1st International Conference on Innovation in Engineering, ICIE 2021
Country/TerritoryPortugal
CityGuimarães
Period28/06/2130/06/21

Keywords

  • Mahalanobis Distance
  • Reliability estimation
  • Solid lubricated bearings
  • Wiener process

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