NDLI: On determining optimal inspection interval for minimizing maintenance cost

Content Provider	IEEE Xplore Digital Library
Author	Huairui Guo Szidarovszky, F. Gerokostopoulos, A. Pengying Niu
Copyright Year	2015
Description	Author affiliation: ReliaSoft Corp., Tucson, AZ, USA (Huairui Guo; Szidarovszky, F.; Gerokostopoulos, A.; Pengying Niu)
Abstract	The majority of system failures do not occur without any warning signs. This is especially true for failures caused by degradation. By examining the failure-critical indexes during scheduled inspections, actions can be taken to address degraded components and prevent big losses due to failures. In this paper, we assume that an imminent failure can be noticed when an inspection is conducted during a short time period right before the failure. Clearly, by conducting frequent inspections, failures can always be detected and prevented. However, the total inspection cost will be very high if the inspection interval is too short. On the other hand, if the inspection interval is too long, a coming failure may not be effectively detected and the total cost due to failures will be high. Therefore, an optimal inspection interval balancing these two costs needs to be identified. A model for determining the optimal inspection interval to minimize the maintenance cost is proposed in this paper. The analytical solution of the model is provided and compared with simulation results. The proposed method is especially useful for process industries such as oil and gas refineries, food processing and pharmaceutical manufacturing. By conducting optimal inspections for components with degradation characteristics, failures will be prevented, maintenance cost will be reduced and the process throughput can be improved.
Starting Page	1
Ending Page	7
File Size	295984
Page Count	7
File Format	PDF
e-ISBN	9781479967032
DOI	10.1109/RAMS.2015.7105163
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-01-26
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Inspection Mathematical model Maintenance engineering Simulation Degradation Analytical models Availability repairable systems maintenance plan inspection interval
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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