Monograph - 2022
 |
Monograph Information
Title
Safety and Reliability of Systems and Processes
Summer Safety and Reliability Seminar 2022
Editors
Ko³owrocki Krzysztof, Poland
Bogalecka Magdalena, Poland
D¹browska Ewa, Poland
Magryta-Mut Beata, Poland
Publisher
Gdynia Maritime University, 2022
ISBN 978-83-7421-421-6 (printed)
e-ISBN 978-83-7421-422-3 (eBook)
DOI: 10.26408/srsp-2022
Language
English
Licence
|
Degradation model for system incorporating heterogeneities
BAUTISTA Lucía 1 
,
CASTRO Inma T. 2 ,
LANDESA Luis 3
1 University of Extremadura, Cáceres, Spain, luciabb{at}unex.es
2 University of Extremadura, Cáceres, Spain, inmatorres{at}unex.es
3 University of Extremadura, Cáceres, Spain, llandesa{at}unex.es
DOI: 10.26408/srsp-2022-01
ABSTRACT: A system subject to several deterioration processes is studied. These processes arrive to the system following a Cox process and they grow according to a homogeneous gamma process. The system is failed when a degradation process exceeds a certain failure threshold. The maintenance strategy implemented on the system is condition-based maintenance, the deterioration state of the system is checked, and replacements are performed if necessary. A random effects model is considered to deal with the heterogeneities between processes, in particular, a uniform distribution is used to model the inverse of the scale parameter of the gamma process. Finally, the analytic cost model is obtained and analysed through some numerical examples.
KEYWORDS: condition-based maintenance, heterogeneities, random effects model
To cite this chapter:
Bautista L., Castro I.T., Landesa L. 2022. Degradation model for system incorporating heterogeneities. In K. Ko³owrocki et al. (Eds.), Safety and Reliability of Systems and Processes, Summer Safety and Reliability Seminar 2022. Gdynia Maritime University, Gdynia, 7-16, doi:10.26408/srsp-2022-01.
