Preventive Maintenance of the k-out-of-n System with Respect to Cost-Type Criterion

Rykov, Vladimir; Kochueva, Olga; Rykov, Yaroslav

doi:10.3390/math9212798

Cited by 7 publications

(6 citation statements)

References 25 publications

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“…Over time, numerous maintenance policies have been developed, with extensive research dedicated to the subject as indicated by various sources [9][10][11][12][13]. However, the conventional maintenance method of replacing a component only when it fails can prove to be too costly in terms of financial and time resources.…”

Section: Introductionmentioning

confidence: 99%

Maintenance Cost Minimization for an Agricultural Harvesting Gripper

Șerdean

Mândru

2023

Sensors

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A crucial aspect that has to be considered in all fields and, especially, in smart farming, a rapidly developing industry, is maintenance. Due to the costs generated by both under-maintaining and over-maintaining the components of a system, a balance has to be achieved. The paper is focused on presenting an optimal maintenance policy used to ensure cost minimization by determining the optimal time to make a preventive replacement of the actuators of a harvesting robotic system. First, a brief presentation of the gripper with Festo fluidic muscles used in a novel way instead of fingers is given. Then, the nature-inspired optimization algorithm, as well as the maintenance policy are described. The paper also includes the steps and the obtained results of the developed optimal maintenance policy applied for the Festo fluidic muscles. The outcome of the optimization shows that a significant reduction in the costs is obtained if one performs a preventive replacement of the actuators a few days before the lifetime provided by the manufacturer and the lifetime estimated using a Weibull distribution.

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Section: Introductionmentioning

confidence: 99%

Maintenance Cost Minimization for an Agricultural Harvesting Gripper

Șerdean

Mândru

2023

Sensors

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“…In some of our work the problems of preventive maintenance optimization for the subsea pipeline monitoring system with respect to availability maximization in [17] and with respect to cost-type criterion in [18] has been considered. In [19] it was proposed to use the risk tree as an assistant tool for the decision-maker.…”

Section: Introductionmentioning

confidence: 99%

Sensitivity Analysis of Risk Characteristics of Complex Engineering Systems: An Application to a Subsea Pipeline Monitoring System

Rykov

Kochueva

Farkhadov

et al. 2023

JMSE

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One of the problems of risk analysis of complex engineering systems is the uncertainty of initial information about the time and damage associated with occurrence and development of the risk situation. The paper proposes a methodology and procedure for constructing a risk tree, loading it with initial data, calculating the corresponding characteristics: the distributions of time to reach the intermediate and main risk events and of associated with them damages, as well as their moments. Methodology involves the construction of the most dangerous path of risk situation development with respect to different criteria as well as analysis the sensitivity of risk characteristics to the initial information. The proposed approach is applied to a model of an automated system for remote monitoring of underwater gas pipeline. The proposed methodology and its implementation on a real-world example constitute the novelty of the work.

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“…The problem of decision making and preliminary prophylactic analysis was considered in [32][33][34]. In some of our previous works [9,35,36], the problem of the sensitivity analysis of output model characteristics to the distributions of the input characteristics was considered. The papers of Z. Kala presented a general approach to the problems of sensitivity analysis [37,38].…”

Section: Introductionmentioning

confidence: 99%

Renewable k-Out-of-n System with the Component-Wise Strategy of Preventive System Maintenance

2023

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At the SMARTY-22 conference, a review of the regenerative methods development was presented, including its application to the study of a non-renewable k-out-of-n system. This paper develops the previous study for the renewable k-out-of-n system, including an investigation different preventive maintenance strategies based on the system state observation. We also include the review of Smith’s regeneration idea development. Some new results are presented that form the basis for an algorithm for comparing preventing maintenance strategies with respect to the maximization of the availability factor. A numerical study was conducted for the 4-out-of-6 and 4-out-of-8 models. The study demonstrates the sensitivity of decision making to the shape of the repair time distribution.

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Preventive Maintenance of the k-out-of-n System with Respect to Cost-Type Criterion

Cited by 7 publications

References 25 publications

Maintenance Cost Minimization for an Agricultural Harvesting Gripper

Maintenance Cost Minimization for an Agricultural Harvesting Gripper

Sensitivity Analysis of Risk Characteristics of Complex Engineering Systems: An Application to a Subsea Pipeline Monitoring System

Renewable k-Out-of-n System with the Component-Wise Strategy of Preventive System Maintenance

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