A Mathematical Model for Dynamic Scheduling of Production and Maintenance Activities in a Flexible Job-Shop System

Jazi, Elham Moazzam; Tavakkoli‐Moghaddam, Reza; Sangroudi, Hadi Abdollahzadeh

doi:10.1109/icsrs56243.2022.10067415

2022 6th International Conference on System Reliability and Safety (ICSRS) 2022

DOI: 10.1109/icsrs56243.2022.10067415

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A Mathematical Model for Dynamic Scheduling of Production and Maintenance Activities in a Flexible Job-Shop System

Elham Moazzam Jazi

Reza Tavakkoli‐Moghaddam

Hadi Abdollahzadeh Sangroudi

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2024

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Modeling Expected Failure Considering Repair Time and Degradation: A Rail System Case Study

Hamidi,

Sedaghat,

Gharehgozli

et al. 2024

JTTs

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The repeated failures of any equipment or systems are modeled as a renewal process. The management needs an assessment of the number of future failures to allocate the resources needed for fast repairs. Based on the idea of expectation by conditioning, special Volterra-type integral equations are derived for general types of repairs, considering the length of repair and reduced degradation of the idle object. In addition to minimal repair and failure replacement, partial repairs are also discussed when the repair results in reduction of the number of future failures or decreases the effective age of the object. Numerical integration-based algorithm and simulation study are performed to solve the resulting integral equation. Since the geometry degradation in different dimensions of a rail track and controlling and maintaining defects are of importance, a numerical example using the rail industry data is conducted. Expected number of failures of different failure type modes in rail track is calculated within a two-year interval. Results show that within a two-year period, anticipated occurrences of cross level failures, surface failures, and DPI failures are 2.4, 3.8, and 5.8, respectively.

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Modeling Expected Failure Considering Repair Time and Degradation: A Rail System Case Study

Hamidi,

Sedaghat,

Gharehgozli

et al. 2024

JTTs

View full text Add to dashboard Cite

show abstract

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A Mathematical Model for Dynamic Scheduling of Production and Maintenance Activities in a Flexible Job-Shop System

Cited by 1 publication

References 9 publications

Modeling Expected Failure Considering Repair Time and Degradation: A Rail System Case Study

Modeling Expected Failure Considering Repair Time and Degradation: A Rail System Case Study

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