| Full text | |
| Author(s): |
Pordeus Gomes, Joao Paulo
[1]
;
Harrop Galvao, Roberto Kawakami
[2]
;
Yoneyama, Takashi
[2]
;
Leao, Bruno P.
[3]
Total Authors: 4
|
| Affiliation: | [1] Univ Fed Ceara, Dept Comp Sci, BR-60440900 Fortaleza, Ceara - Brazil
[2] Inst Tecnol Aeronaut, Dept Elect Engn, BR-12229900 Sao Jose Dos Campos, SP - Brazil
[3] GE Global Res, Brazil Technol Ctr, BR-21941615 Rio De Janeiro, RJ - Brazil
Total Affiliations: 3
|
| Document type: | Journal article |
| Source: | IEEE TRANSACTIONS ON RELIABILITY; v. 65, n. 1, p. 326-335, MAR 2016. |
| Web of Science Citations: | 5 |
| Abstract | |
This paper presents a new method for combining measured parameters into a single indicator for monitoring the condition of systems subjected to degradation effects. The proposed approach integrates the use of nonparametric density estimation techniques into Runger's method, which allows for the separation of variables that are directly related to degradation effects from those which are not. Two simulated case studies are presented for illustration, namely, the monitoring of a flap extension and retraction system, and a gas turbine employed as an auxiliary power unit. For comparison, degradation indicators are also calculated by using Hotteling's and Runger's methods, as well as a nonparametric method without separation of variables. In both case studies, the proposed method provided the best results in terms of fault detection performance and suitability for remaining useful life prediction. (AU) | |
| FAPESP's process: | 11/17610-0 - Monitoring and control of dynamic systems subject to faults |
| Grantee: | Roberto Kawakami Harrop Galvão |
| Support Opportunities: | Research Projects - Thematic Grants |