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Author Dekker, Rommert ♦ Mardin, Farid
Source Directory of Open Access Journals (DOAJ)
Content type Text
Publisher ITB Journal Publisher, LPPM ITB
File Format HTM / HTML
Date Created 2018-01-11
Copyright Year ©2016
Language English
Subject Domain (in LCC) TA1-2040
Subject Keyword Joint optimization ♦ Deterministic demand ♦ Stochastic demand ♦ Civil engineering ♦ Spare parts inventory ♦ Engineering ♦ Technology ♦ Maintenance ♦ Block replacement
Abstract A block replacement schedule can be optimized simultaneously with a spare parts ordering schedule, since all items are replaced at a constant interval. The solution of joint optimization for spare parts ordering time and block replacement gives lower costs compared to separate optimization of ordering time and replacement time. The spare parts for replacement can be classified as stochastic demand for failure replacement and deterministic demand for block replacement. In this paper, we propose a simulation model for a separate spare parts ordering schedule. The solution was compared to the solution for a model with common spare parts for both failure and block replacement. The system has N identical components, each with a Weibull lifetime distribution. The costs of failure and block replacements, and also the costs of ordering, holding and shortage of spare parts are given. The proposed model was shown to perform better than the common order model. Also, compared to the age replacement model, the solution of the proposed model is relatively similar, yet the economies of scale would be an advantage for the block replacement over age replacement.
ISSN 23375779
Age Range 18 to 22 years ♦ above 22 year
Educational Use Research
Education Level UG and PG ♦ Career/Technical Study
Learning Resource Type Article
Publisher Date 2016-11-01
e-ISSN 23375779
Journal Journal of Engineering and Technological Sciences
Volume Number 48
Issue Number 5
Page Count 28
Starting Page 495
Ending Page 522


Source: Directory of Open Access Journals (DOAJ)