نتایج جستجو برای: preventive maintenance

تعداد نتایج: 194957  

 Sequence dependent set-up times scheduling problems (SDSTs), availability constraint and transportation times are interesting and important issues in production management, which are often addressed separately. In this paper, the SDSTs job shop scheduling problem with position-based learning effects, job-dependent transportation times and multiple preventive maintenance activities is studied. ...

A condition based preventive and corrective maintenance policy is proposed for a continuously operating system. The condition of the system is assumed to deteriorate with time. The model incorporates both deterioration as well as random common cause failures. The deterioration stages are modeled as discrete state processes. The system is put to random inspection to know the condition. The mean ...

2011
Bindu Goel Macario Polo Mario Piattini Francisco Ruiz Sridhar Nerur RadhaKanta Mahapatra Yogesh Singh

The complexities associated with software system implemented often makes it imperative to maintain the existing software as a system of high functionality and throughput regime even in the face of changed external environment. It is preferable to enhance the functional operation by upgrading the existing software than changing entire systems as is demonstrated by continued usage of proprietary ...

Journal: :Rel. Eng. & Sys. Safety 2008
Nabil Nahas Abdelhakim Khatab Daoud Aït-Kadi Mustapha Nourelfath

This paper deals with preventive maintenance optimization problem for multi-state systems (MSS). This problem was initially addressed and solved by Levitin and Lisnianski [Optimization of imperfect preventive maintenance for multi-state systems. Reliab Eng Syst Saf 2000;67:193–203]. It consists on finding an optimal sequence of maintenance actions which minimizes maintenance cost while providin...

2014
K. Dhouib A. Gharbi M. N. Ben Aziza

Production, maintenance, and quality are often modeled as separate problems, despite the strong link that exists between these primary components of any manufacturing system. This paper deals with an integrated approach for the joint optimization of production-inventory control and preventive maintenance policy for a manufacturing cell comprising an imperfect process where the ‘in-control’ peri...

2016
Mana Sezdi

A maintenance program generated through the consideration of characteristics and failures of medical equipment is an important component of technology management. However, older technology devices and newer high-tech devices cannot be efficiently managed using the same strategies because of their different characteristics. This study aimed to generate a maintenance program comprising two differ...

2013
Richa Chouhan Manoj Gaur Rohit Tripathi

I n the past many decades, breakdown, maintenance and replacement issues of deteriorating machines and systems are extensively studied within the literature. A number of maintenance and replacement models, techniques and policies are created, documented and tested. However, of these models are comprised of some classes ∗M.Tech. Student, Department of Mechanical Engineering, Madhav Institute of ...

Nowadays, offering extended warranty is considered as a lucrative source of income from the perspective of the after-sale service providers. Meanwhile, the main concern is presence or absence of base warranty and strategies adopted by the manufacturer during this period. Moreover, extended warranty structure must be responsive and customer oriented, which not only control the services cost but ...

A. H. Shirmohammadi,

The present study is intended to develop a Preventive Maintenance (PM) policy for industrial applications, while considering two different objectives: the first objective is to optimize the total maintenance costs, i.e., the Preventive Maintenance (PM) and Emergency Maintenance (EM) Costs Per Unit Time. (CPUT). The second objective is to design the policy in such a way that the simplicity of it...

Journal: :روش های عددی در مهندسی (استقلال) 0
علی حاج شیر محمدی a. h. shirmohammadi

the present study is intended to develop a preventive maintenance (pm) policy for industrial applications, while considering two different objectives: the first objective is to optimize the total maintenance costs, i.e., the preventive maintenance (pm) and emergency maintenance (em) costs per unit time. (cput). the second objective is to design the policy in such a way that the simplicity of it...

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