Abstract

The operation and maintenance of industrial plants constitute a major concern among managers, scientists, and engineers. To allow the prioritization of maintenance actions for improved continuous equipment operation, this paper presents a novel method focused on identifying the most critical components of a plant’s systems. In a complex engineering approach, this method uses tools and techniques borrowed from several fields of knowledge, including an innovative technique devised by the authors, as well as a multi-criteria decision method in the criticality determination process. To illustrate the method, a case study is presented considering a 150 MW Kaplan hydro generator from a hydroelectric power plant located in the north of Brazil. An uncertainty analysis is presented, considering variations in the scores of each criterion, to verify the robustness of the proposed method. The results show that the method responds in a solid and structured way, allowing decision making from qualitative and quantitative data and eliciting the opinion of experts on the factors that can affect the degradation of the performance of a system. In addition, the method’s robustness is confirmed since the uncertainty propagation related to the criteria scores is small for the items classified as most significant from its application.

Highlights

  • Maintenance is undoubtedly an important sector for the achievement of companies’ organizational objectives

  • It is observed that in most of the works found in the literature regarding this subject, the criteria used to Maintenance Significant Items (MSI) identification are generally based on concepts that consider the occurrence of the failure, and not the possibility of preventing or anticipating it, seeking to use monitoring data according to Industry 4.0 concepts [22], in the face of a higher demand for productivity and maintenance efficiency

  • This paper presented a new method for defining the MSI of a system

Read more

Summary

A Novel Approach to Defining Maintenance

Adherbal Caminada Netto 1 , Arthur Henrique de Andrade Melani 1 , Carlos Alberto Murad 1 , Miguel Angelo de Carvalho Michalski 1 , Gilberto Francisco Martha de Souza 1, * and Silvio Ikuyo Nabeta 2.

Introduction
Literature Review
Methods and Criteria
The Proposed Method
System Study
Defining Maintenance Significant Items through AHP
Operation and Maintenance Derived Figures
Case Study: A Hydroelectric Power Plant
Studying the System
Defining Maintenance Significant Items
Uncertainty Analysis
Findings
Conclusions
Full Text
Published version (Free)

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call