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Risk Assessor's Toolbox
Published in Charles Yoe, Principles of Risk Analysis, 2019
Reliability-centered maintenance (RCM) is a process designed to produce low operational risk and high equipment reliability at least cost maintenance, that is, the most effective maintenance approach. It was initially developed to meet the needs of commercial aviation in the late 1960s. This led to the publication of the Maintenance Steering Group document MSG-3 that is the basis of the modern RCM (see box). It is now an approved and well-established methodology in industry. RCM is a process used to identify applicable and effective preventive maintenance requirements for equipment in accordance with the safety, operational and economic consequences of identifiable failures, considering the degradation mechanism responsible for those failures. The process supports decision-making about the necessity of performing a maintenance task.
RCAM Case: Hydropower Systems
Published in Lina Bertling Tjernberg, Infrastructure Asset Management with Power System Applications, 2018
Another major difference is that RCM allows different maintenance intervals for different pieces of equipment. The spread in time of planned tasks for RCM is presented in Figures 10.5 and 10.6 for stator and rotor tasks. The intervals chosen for maintenance tasks vary greatly in length. Intervals range from less than 1 year up to 20 years. In the old plans, maintenance is performed every 3 years. A graph for the old plans would be a single pillar at 3 years. For expensive tasks that are performed seldom it is a difficult task to determine appropriate intervals. In the old plans, the larger tasks were performed when indications led personnel to believe there might be something wrong with the equipment. RCM has determined when these checks should be performed beforehand. This might lead to expensive tasks being performed even if other indications show there is nothing wrong with the equipment.
Reliability Engineering and Control
Published in Armand A. Lakner, Ronald T. Anderson, Reliability Engineering for Nuclear and Other High Technology Systems, 2017
One of the key elements of an effective reliability engineering program is the establishment of effective preventive maintenance tasks and requirements. A relatively new program first initiated by the airlines (see Fig. 6.9) and now applied by the DoD for deriving optimum maintenance plans is reliability centered maintenance (RCM). RCM is a concept which uses an analytical methodology, or logic, for establishing specific preventive maintenance tasks for complex systems or equipment. Intrinsic to RCM is the identification of critical failure modes and deterioration mechanisms through engineering analyses and/or field experience to determine the consequences and the most effective apportionment of maintenance activities.
Managing physical assets: a systematic review and a sustainable perspective
Published in International Journal of Production Research, 2023
Georgiana Sandu, Olga Varganova, Behzad Samii
Under the umbrella of proactive maintenance, we find approaches such as condition-based maintenance (Bousdekis et al. 2015; Ciarapica and Giacchetta 2006; Lin, Luo, and Zhong 2018; Yam et al. 2001), reliability-centred maintenance (Cheung and Kyle 1996; Mishra, Keshavarzzadeh, and Noshadravan 2019), or risk-based maintenance (Carpitella et al. 2021). These approaches use different criteria such as time, machine diagnosis or risks to establish and prioritise the maintenance intervention. Navigating through these approaches is rendered possible by considering the importance and the condition of the asset. In this sense, only reliability-centred maintenance considers both equipment conditions and setting priorities for maintenance actions (Schneider et al. 2006). Additionally, asset criticality, asset health index, and risk estimation are also important parameters in predicting failures, ranking equipment in terms of their importance, building their risk profiles, and performing corrective measures within the maintenance management framework. The term ‘risk’ in maintenance management is associated with the probability of failure and the consequence of failure (Benítez et al. 2019; Carpitella et al. 2021; Mkandawire, Ijumba, and Saha 2015). Overall, estimating risks in PAM is required to reduce the capital and operational expenditure significantly.
Data fusion framework for decision-making support in reliability-centered maintenance
Published in Journal of Industrial and Production Engineering, 2021
Flávio Piechnicki, Cleiton Ferreira Dos Santos, Eduardo De Freitas Rocha Loures, Eduardo Alves Portela Dos Santos
Within this context, reliability-centered maintenance (RCM) emerged in the aviation industry in the 1960s as a methodology capable of establishing the most effective maintenance strategy, reducing maintenance activities and related costs without affecting plant performance, product quality, safety, or environmental integrity [5]. In an RCM program, the criteria that processes must address are basically defined by standards and technical publications, such as (i) Dependability management, Part 311: Application guide Reliability-Centered Maintenance – IEC 60,300-3-11 [6]; (ii) Evaluation criteria for reliability-centered maintenance – SAE-JA1011 [7]; (iii) A guide to the reliability-centered maintenance (RCM) standard – SAE-JA1012 [8]; (iv) Nasa Reliability-Centered Maintenance Guide [9]; RCM-II [1], among others. RCM programs consist of approaches that encompass concepts in Reactive Maintenance (RM), Preventive Maintenance (PM), Predictive Testing and Inspection (PT&I), and Proactive Maintenance (PrM) techniques, with the objective of reducing the probability of failure of a machine or component, optimizing its life cycle with minimal maintenance interventions.
A Novel Method to Apply Reliability-Centered Maintenance on Over-Current Protection Systems
Published in Electric Power Components and Systems, 2020
Mohammad Hossein Nasri, Sayed Yaser Derakhshandeh, Abbas Kargar
As mentioned earlier, the goal of using RCM is to determine the most appropriate maintenance planning for each device by considering failures and the related effects. The first step in RCM procedure is to define and then evaluate all devices in the system, their functional failures and the effect of the failures. Once the effects of functional failures are determined for each device, the decision-making method regarding the type of maintenance for a given device is accordingly obtained. These decisions are taken based on the flowchart of the RCM decision-making [5]. This decision-making process of maintenance task should be done by experts and individuals who have the relevant knowledge about [5].