J 2016

System Condition Estimation Based on Selected Tribodiagnostic Data

VALIŠ, David, Libor ŽÁK and Ondřej POKORA

Basic information

Original name

System Condition Estimation Based on Selected Tribodiagnostic Data

Authors

VALIŠ, David (203 Czech Republic), Libor ŽÁK (203 Czech Republic) and Ondřej POKORA (203 Czech Republic, guarantor, belonging to the institution)

Edition

Quality and Reliability Engineering International, WILEY-BLACKWELL, 2016, 0748-8017

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

20306 Audio engineering, reliability analysis

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 1.366

RIV identification code

RIV/00216224:14310/16:00089060

Organization unit

Faculty of Science

UT WoS

000370273700024

Keywords in English

field data assessment; off-line diagnostics; first-hitting time; system residual technical life; maintenance optimisation; diffusion processes

Tags

Tags

International impact, Reviewed
Změněno: 13/3/2018 15:51, Mgr. Ondřej Pokora, Ph.D.

Abstract

V originále

The aim of the paper is to estimate a system-soft failure occurrence and residual technical life. When estimating a residual technical life statistically, usually a big amount of tribodiagnostic data is used. Data include the information about particles contained in oil that testifies to oil and system conditions. We focus here on the particles that we consider to be interesting. They are ferrum (Fe) and lead (Pb) as contact degradation product. By modelling the occurrence of particles in oil, we expect to determine the expected moment for soft failure occurrence or adequate moment to perform preventive maintenance. The way of our modelling is based on the specific characteristics of diffusion processes, namely the Wiener process with positive drift and Ornstein–Uhlenbeck process. Following the modelling results, we could judge hazard rate and set-up principles of ‘CBM - Condition Based Maintenance’ (CBM). However, the possibilities are much wider, because we can also plan operation, mission and reduce life cost. Copyright © 2015 John Wiley & Sons, Ltd.