A systematic airport runway maintenance and inspection policy based on a delay time modeling approach

2020 ◽  
Vol 110 ◽  
pp. 103039 ◽  
Author(s):  
Naiara Meireles de Souza ◽  
Adiel Teixeira de Almeida Filho
Keyword(s):  
Delay Time ◽  
Modeling Approach ◽  
Time Modeling ◽  
Inspection Policy ◽  
Maintenance And Inspection ◽  
Airport Runway

scholarly journals Developing an Inspection Optimization Model Based on the Delay-Time Concept

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Ehsan Nazemi ◽  
Kamran Shahanaghi
Keyword(s):  
Delay Time ◽  
Optimization Problems ◽  
Good Condition ◽  
Substantial Reduction ◽  
Structural System ◽  
Academic World ◽  
Decision Variables ◽  
Inspection Policy ◽  
Maintenance And Inspection ◽  
Inspection Schedule

Infrastructures are considered as important facilities required for every country and society to be able to work properly. Aging and deterioration of such structures during their lifetime are a major concern both for maintenance researchers in the academic world and for the practitioners. This concern is mainly because the deterioration increases the maintenance costs dramatically and lowers the reliability, availability, and safety of the structural system. Preventive maintenance and inspection activities are the most usual means for keeping the structure in a good condition. This paper utilizes the concept of delay-time for developing the optimal inspection policy for deteriorating structures. In the proposed stochastic model, discrete times of inspection activities are taken as the decision variables of an optimization problem, in a way that the obtained aperiodic (nonuniform) inspection schedule minimizes the total downtime ratio of the structure. To illustrate the model capabilities, various numerical examples are solved and results are compared with the traditional periodic (uniform) inspection policies. The results indicate the substantial reduction in system downtime due to the wisely planned inspection schedule and the appropriate utilization of delay-time concept, which is indeed a powerful framework for inspection optimization problems.

Delay-Time Modeling for ED MOS Logic LSI

1983 ◽  
Vol 2 (3) ◽  
pp. 129-134 ◽  
Author(s):  
T. Tokuda ◽  
K. Okazaki ◽  
K. Sakashita ◽  
I. Ohkura ◽  
T. Enomoto
Keyword(s):  
Delay Time ◽  
Time Modeling

Adoption of switchgrass cultivation for biofuel under uncertainty: A discrete-time modeling approach

2017 ◽  
Vol 105 ◽  
pp. 107-115 ◽  
Author(s):  
Pralhad Burli ◽  
Eric Forgoston ◽  
Pankaj Lal ◽  
Lora Billings ◽  
Bernabas Wolde
Keyword(s):  
Discrete Time ◽  
Modeling Approach ◽  
Time Modeling ◽  
Discrete Time Modeling

scholarly journals Application of Monte Carlo techniques with delay-time analysis to assess maintenance and inspection policies for marine systems

2016 ◽  
Vol 231 (2) ◽  
pp. 89-106 ◽  
Author(s):  
D McNamara ◽  
A Cunningham ◽  
R Riahi ◽  
I Jenkinson ◽  
J Wang
Keyword(s):  
Monte Carlo ◽  
Delay Time ◽  
Monte Carlo Model ◽  
Spare Part ◽  
Time Analysis ◽  
Factors Affecting ◽  
Monte Carlo Techniques ◽  
Marine System ◽  
Maintenance And Inspection ◽  
The Impact

This paper presents a novel methodology applying Monte Carlo methods with delay-time analysis to test the effects of scheduled maintenance and inspection actions on factors affecting the operational efficiency of a marine system which is subject to degradation. The aim is to demonstrate how a Monte Carlo model incorporated into delay-time analysis can be used to predict the transition behaviour of a system under analysis. The model presented in this paper focuses on the effects on system failure probability and downtime of various maintenance and inspection policies. The impact on spare part requirements is also investigated.

scholarly journals A Delay-Time Model with Imperfect Inspections for Multi-Unit Systems / Model Opóźnień Czasowych Z Nieperfekcyjną Diagnozą Stanu Systemu Dla Systemów Wieloelementowych

2012 ◽  
Vol 23 (1) ◽  
pp. 157-172 ◽  
Author(s):  
Anna Jodejko-Pietruczuk ◽  
Sylwia Werbińska-Wojciechowska
Keyword(s):  
Sensitivity Analysis ◽  
Delay Time ◽  
Research Work ◽  
Maintenance Policy ◽  
Time Model ◽  
Policy Performance ◽  
Systems Model ◽  
Literature Overview ◽  
Inspection Policy ◽  
Modelling Approach

Abstract In this paper, the authors’ research work is focused on imperfect inspection policy investigation, when not all defects are identified during inspection action performance. They are interested in Block Inspection Policy performance for multi-unit systems, the maintenance policy which is one of the most commonly used in practice. As a result, at the beginning, few words about delay time modelling approach and a brief literature overview is given. Later, the model of Block-Inspection Policy is provided. The numerical example with the use of QNU Octave program is given. In the next Section, the sensitivity analysis of the developed model is characterised. The article ends up with summary and directions for further research.

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