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How Precise Has Fault Detection to Be? Answers from an Economical Point of View

Böhm, Thomas (2013) How Precise Has Fault Detection to Be? Answers from an Economical Point of View. In: Proceedings of the 26th International Congress on Condition Monitoring and Diagnostics Engineering Management, pp. 460-466. KP-Media Oy. COMADEM 2013 - 26th International Congress on Condition Monitoring and Diagnostics Engineering Management, 10.-13. Jun. 2013, Helsinki, Finnland. ISBN 9789526798103

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Abstract

Condition monitoring as part of an effective condition based maintenance has long been accepted in the academic and industrial world, 25 COMADEM conferences are proof of that. Various methods, algorithms, and tools have been developed to monitor the condition, detect faults, or predict the remaining useful life. Furthermore, there are methods available supporting the engineer to choose the appropriate approach to his problem at hand. One question that often comes along with the implementation of fault detection and failure prediction is: How accurate has the condition monitoring to be and what is the right balance between false alerts and undetected faults which may lead to failures? This paper presents a method to calculate the required accuracy in terms of an economical efficient condition monitoring. It gives the parameters necessary to calculate the right balance between undetected failures and false alerts. The diagnosis of a railway point machine is used to illustrate the application of the proposed method. Points are critical to the railway operation and their breakdown has a high impact on delays and hence costs. Moreover, the structure of the railway network makes them a distributed system, sometimes hard to reach for maintenance staff, which also makes the maintenance expensive. This and other facts make the decision complex, but give a good example on how the question for the required accuracy can be answered taking into account the goal of a maximum of cost efficiency.

Item URL in elib:https://elib.dlr.de/83225/
Document Type:Conference or Workshop Item (Speech, Paper)
Title:How Precise Has Fault Detection to Be? Answers from an Economical Point of View
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Böhm, Thomasthomas.boehm (at) dlr.deUNSPECIFIED
Date:June 2013
Journal or Publication Title:Proceedings of the 26th International Congress on Condition Monitoring and Diagnostics Engineering Management
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 460-466
Editors:
EditorsEmail
Rao, R. BKNUNSPECIFIED
Publisher:KP-Media Oy
ISBN:9789526798103
Status:Published
Keywords:condition monitoring, accuracy requirements, classifier evaluation, railway switch
Event Title:COMADEM 2013 - 26th International Congress on Condition Monitoring and Diagnostics Engineering Management
Event Location:Helsinki, Finnland
Event Type:international Conference
Event Dates:10.-13. Jun. 2013
Organizer:VTT Technical Research Centre of Finland; Aalto University; COMADEM International
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Traffic Management (old)
DLR - Research area:Transport
DLR - Program:V VM - Verkehrsmanagement
DLR - Research theme (Project):V - Projekt Next Generation Railway System (old)
Location: Braunschweig
Institutes and Institutions:Institute of Transportation Systems > Railway System
Deposited By: Böhm, Thomas
Deposited On:08 Jul 2013 14:05
Last Modified:31 Jul 2019 19:41

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