NDLI: Life based maintenance policy for minimum cost

Content Provider	IEEE Xplore Digital Library
Author	Chitra, T.
Copyright Year	2003
Description	Author affiliation: DRDO, CASSA, Bangalore, India (Chitra, T.)
Abstract	The maintenance of any system can be categorized in two ways: failure based maintenance (corrective maintenance) and life based maintenance (preventive maintenance). The time interval at which the preventive maintenance could be scheduled is dependent on both the life distribution of the subsystems/components and the total cost involved in the maintenance activity. However, the corrective maintenance cannot be avoided when a random failure of a component occurs. The total cost of the maintenance depends on the number of components replaced during the entire operating period of the system and the respective cost involved in maintenance actions. In this paper the preventive maintenance schedule (t/sub 0/) is calculated taking the failure distribution of a component as Weibull. The variation in (t/sub 0/) with respect to the shape parameter (/spl beta/) and characteristic life (/spl alpha/) of the Weibull distribution was studied by the author for a given preventive maintenance cost and corrective maintenance cost. The ratio of the corrective maintenance cost to the preventive maintenance cost (R/sub cp/) has a significant effect on the maintenance schedule (t/sub 0/). Thus the variation of (t/sub 0/) with (R/sub cp/) is addressed in this paper. The ratio is varied between 10 and 1.5. It is found that the (t/sub 0/) value increases as shape parameter increases when the ratio is 10 whereas the (to) value decreases when the ratio is 1.5. This shows that as we decrease the cost ratio (R/sub cp/) the frequency of preventive maintenance decreases with shape parameter. This in turn implies that the frequency of the preventive maintenance schedule can be kept at minimum by bringing down the cost of corrective maintenance. Sensitivity analysis carried out on the (t/sub 0/) values indicates that the variation in the cost of maintenance is about 5 to 8 percent :in all the cases even when the value of (t/sub 0/) is increased. by 50% over the optimum value. This indicates, while the optimum value of (to) obtained may be of academic interest, one can 'in practice' choose a convenient value near the optimum without appreciably affecting the advantage in terms of cost.
Starting Page	470
Ending Page	474
File Size	411522
Page Count	5
File Format	PDF
ISBN	0780377176
ISSN	0149144X
DOI	10.1109/RAMS.2003.1182034
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-01-27
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Preventive maintenance Cost function Shape Weibull distribution Frequency Sensitivity analysis Availability Logistics Delay System testing
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

Analysis of periodic preventive maintenance with general system failure distribution

Coordinating maintenance with spares logistics to minimize levelized cost of wind energy

A simple approximation of the Weibull renewal function

Research on the calculation method for the maintenance interval of airborne products

Estimation and Optimization for System Availability Under Preventive Maintenance

Improving availability and cost performance for complex systems with preventive maintenance

Multiobjective Maintenance Policy for a Distribution System an Application Study

Mass-transit system service quality: tradeoff analysis on reliability, maintainability and logistics

Optimal preventive-replacement intervals for the Weibull life distribution: solutions and applications

Life based maintenance policy for minimum cost

Similar Documents

Analysis of periodic preventive maintenance with general system failure distribution

Coordinating maintenance with spares logistics to minimize levelized cost of wind energy

A simple approximation of the Weibull renewal function

Research on the calculation method for the maintenance interval of airborne products

Estimation and Optimization for System Availability Under Preventive Maintenance

Improving availability and cost performance for complex systems with preventive maintenance

Multiobjective Maintenance Policy for a Distribution System an Application Study

Mass-transit system service quality: tradeoff analysis on reliability, maintainability and logistics

Optimal preventive-replacement intervals for the Weibull life distribution: solutions and applications

Life based maintenance policy for minimum cost