A sewer system is an important infrastructure of every settlement. a set construction facilities used for the quick removal wastewater from humans’ immediate environment and its transport to treatment plant or direct discharge into appropriate recipient. In order perform purpose properly, proper maintenance required. Maintenance very demanding since mostly underground which makes it difficult b...

The use of the building is to support activities or as infrastructure for owners users in optimally carrying out their daily activities. expected be flexible following flow changes that occur later. This what underlies need maintenance In LPMP Dormitory building, have not been managed properly. order better, a management plan made on architectural and utility components building. Starting from ...

This research aims to analyse, evaluate and rank the maintenance strategy practised by train operating companies, specifically rolling stock team. A quantitative method was adopted for data collection. total of five companies were chosen participate in a survey that has been carefully designed. The first identified associated with through systematic literature reviews. Afterwards, six strategie...

The availability of a periodic inspection system under mixed maintenance policies is studied in this paper. To accommodate the characteristic multiple failure modes for complex systems, failures can be divided into two modes: hard and soft failure. When occurs, corresponding corrective will performed, taking random time perfect policy; contrast, if found, preventive imperfect policy. dynamic ag...

This paper is concerned with the development of a realistic preventive maintenance (PM) scheduling model. A heuristic approach for implementing the semi-parametric proportional-hazards model (PHM) to schedule the next preventive maintenance interval on the basis of the equipment’s full condition history is introduced. This heuristic can be used with repairable systems and does not require the u...

In general, a complex system is composed of different components that are usually subject to maintenance policy. We take into account systems containing under both preventive and corrective maintenance. Preventive considered as failure-based model, where full renewal realized after the occurrence every nth failure. It offers an imperfect each repair deteriorates component or lifetime, probabili...

Wind farms have gained wide attention due to unlimited resources and clean energy. Considering that wind turbine systems are always in harsh conditions, subsystem failures could reduce the reliability of systems. At present, maintenance behaviors for various (e.g., corrective maintenance, preventive maintenance) when is reduced below threshold. cost downtime, it impossible repair each component...

In this article we develop a model to help a maintenance decision-making situation of a given equipment. We propose a novel model to determine optimal life-cycle duration and intervals between overhauls by minimizing global maintenance costs. We consider a situation where the customer, which owns the equipment, may negotiate a better warranty contract by offering an improved preventive maintena...

Tulisan ini merupakan studi kasus yang terjadi pada boiler di Pembangkit Listrik Tenaga Uap (PLTU) Rembang setelah penulis melaksanakan magang sana. PLTU memiliki peran strategis dalam sistem kelistrikan Indonesia, karena dinilai lebih ekonomis dan hasil energi memadai. Salah satu komponen adalah boiler. Boiler alat untuk mengubah panas menjadi gerak, menggerakkan turbin agar menghasilkan listr...

Industrial necessities claim global management procedures integrating information systems in order to manage and to use the whole information about controlled processes and thus, to assure a good process behaviour. Fault management and maintenance are vital aspects in industrial management, in this sense, maintenance systems should support decision-making tools, new maintenance approaches and t...