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An asset management modelling framework for wind turbine blades considering monitoring system reliability (2024)
Journal Article
Wu, W., Prescott, D., Remenyte-Prescott, R., Saleh, A., & Chiachio Ruano, M. (2024). An asset management modelling framework for wind turbine blades considering monitoring system reliability. Reliability Engineering and System Safety, 252, Article 110478. https://doi.org/10.1016/j.ress.2024.110478

By incorporating information about asset condition from a monitoring system, engineers can utilize asset management models to manage maintenance activities on wind turbine blades throughout their lifespan. This can lower operating and maintenance cos... Read More about An asset management modelling framework for wind turbine blades considering monitoring system reliability.

A general approach to assessing SHM reliability considering sensor failures based on information theory (2024)
Journal Article
Wu, W., Cantero-Chinchilla, S., Prescott, D., Remenyte-Prescott, R., & Chiachío, M. (2024). A general approach to assessing SHM reliability considering sensor failures based on information theory. Reliability Engineering and System Safety, 250, Article 110267. https://doi.org/10.1016/j.ress.2024.110267

Structural health monitoring systems (SHM) involve implementing damage identification strategies to determine the health state of structures. However, it is important to pay close attention to the system degradation, especially the... Read More about A general approach to assessing SHM reliability considering sensor failures based on information theory.

Modular asset management framework based on Petri-net formalisations and risk-aware maintenance (2023)
Journal Article
Hadri, O., & Prescott, D. (2024). Modular asset management framework based on Petri-net formalisations and risk-aware maintenance. Reliability Engineering and System Safety, 243, Article 109828. https://doi.org/10.1016/j.ress.2023.109828

Probabilistic risk analysis (PRA) is fundamental in safety assessment. Current PRA tools face notable limitations for complex systems, such as the heavily reliance on historical failure data. Moreover, existing tools cannot replicate complex asset ma... Read More about Modular asset management framework based on Petri-net formalisations and risk-aware maintenance.

A novel fault detection and diagnostic Petri net methodology for dynamic systems (2023)
Journal Article
Badmus, T. A., Remenyte-Prescott, R., & Prescott, D. (2023). A novel fault detection and diagnostic Petri net methodology for dynamic systems. Proceedings of the Institution of Mechanical Engineers, Part O: Journal of Risk and Reliability, https://doi.org/10.1177/1748006x231212539

Faults can have significant, negative impacts on the operation and performance of simple and complex dynamic systems. Based on the integration of Bayesian network diagnostic features with Petri net formalism, the existing Bayesian-supported Petri net... Read More about A novel fault detection and diagnostic Petri net methodology for dynamic systems.

Intelligent and adaptive asset management model for railway sections using the iPN method (2023)
Journal Article
Saleh, A., Remenyte-Prescott, R., Prescott, D., & Chiachío, M. (2024). Intelligent and adaptive asset management model for railway sections using the iPN method. Reliability Engineering and System Safety, 241, Article 109687. https://doi.org/10.1016/j.ress.2023.109687

The maintenance strategy in railway transportation is crucial in ensuring safety, availability, and reducing operating costs. However, finding the optimal maintenance plan that takes into account the complex relationships between ra... Read More about Intelligent and adaptive asset management model for railway sections using the iPN method.

An asset management framework for wind turbine blades considering reliability of monitoring system (2023)
Presentation / Conference Contribution
Wu, W., Prescott, D., Remenyte-Prescott, R., Saleh, A., & Chiachio Ruano, M. (2023, September). An asset management framework for wind turbine blades considering reliability of monitoring system. Presented at 33rd European Safety and Reliability Conference (ESREL 2023), Southampton, UK

In this study, a wind turbine (WT) blade asset management (AM) Petri net (PN) model is presented, which incorporates risk-based maintenance and structural health monitoring (SHM). Firstly, PN modules cover the entirety of the blade AM process, descri... Read More about An asset management framework for wind turbine blades considering reliability of monitoring system.

Improving the Modelling Capability of an Integrated Fault Detection and Diagnostic Petri Net Methodology for Dynamic Systems (2023)
Presentation / Conference Contribution
Badmus, T. A., Prescott, D., & Remenyte-Prescott, R. (2023). Improving the Modelling Capability of an Integrated Fault Detection and Diagnostic Petri Net Methodology for Dynamic Systems.

The existing Generalised Stochastic Petri Net and modified Bayesian Stochastic Petri Net (GSPN-mBSPN) methodology has demonstrated improved modelling capabilities for fault diagnosis in dynamic systems with feedback control loops. However, the GSPN-m... Read More about Improving the Modelling Capability of an Integrated Fault Detection and Diagnostic Petri Net Methodology for Dynamic Systems.

Fault Tree to Petri Net Conversion for the Analysis of a Standby System (2023)
Presentation / Conference Contribution
Prescott, D. (2023, April). Fault Tree to Petri Net Conversion for the Analysis of a Standby System. Presented at 62nd ESReDA Seminar, University of Twente, the Netherlands

Although fault trees are widely used, their quantitative analysis is limited by the need for basic event independence. Dynamic and Dependent Tree Theory (D2T 2 ) has been proposed to overcome this limitation and requires dependent system fault tree e... Read More about Fault Tree to Petri Net Conversion for the Analysis of a Standby System.

Using a Novel Hierarchical Coloured Petri Net to Model and Optimise Fleet Spare Inventory, Cannibalisation and Preventive Maintenance (2019)
Journal Article
Sheng, J., & Prescott, D. (2019). Using a Novel Hierarchical Coloured Petri Net to Model and Optimise Fleet Spare Inventory, Cannibalisation and Preventive Maintenance. Reliability Engineering and System Safety, 191, Article 106579. https://doi.org/10.1016/j.ress.2019.106579

Spare part availability is crucial to restoring inoperative platforms to the working state. Platforms failing during operation undergo corrective maintenance to replace failed components with spares. To reduce the frequency of this unplanned, correct... Read More about Using a Novel Hierarchical Coloured Petri Net to Model and Optimise Fleet Spare Inventory, Cannibalisation and Preventive Maintenance.

A coloured Petri net framework for modelling aircraft fleet maintenance (2019)
Journal Article
Sheng, J., & Prescott, D. (2019). A coloured Petri net framework for modelling aircraft fleet maintenance. Reliability Engineering and System Safety, 189, 67-88. https://doi.org/10.1016/j.ress.2019.04.004

The aircraft fleet maintenance organisation is responsible for keeping aircraft in a safe, efficient operating condition. Through optimising the use of maintenance resources and the implementation of maintenance activities, fleet maintenance manageme... Read More about A coloured Petri net framework for modelling aircraft fleet maintenance.

A hierarchical coloured Petri net model of fleet maintenance with cannibalisation (2017)
Journal Article
Sheng, J., & Prescott, D. (2017). A hierarchical coloured Petri net model of fleet maintenance with cannibalisation. Reliability Engineering and System Safety, 168, https://doi.org/10.1016/j.ress.2017.05.043

Cannibalisation refers to a maintenance action where an unserviceable part in an inoperative platform is replaced by a serviceable part of the same type from another platform. It helps a fleet meet operational requirements when spares are in short su... Read More about A hierarchical coloured Petri net model of fleet maintenance with cannibalisation.

An information theoretic approach for knowledge representation using Petri nets (2016)
Presentation / Conference Contribution
Chiachío, M., Chiachío, J., Prescott, D., & Andrews, J. (2016). An information theoretic approach for knowledge representation using Petri nets.

A new hybrid approach for Petri nets (PNs) is proposed in this paper by combining the PNs principles with the foundations of information theory for knowledge representation. The resulting PNs have been named Plausible Petri nets (PPNs) mainly because... Read More about An information theoretic approach for knowledge representation using Petri nets.

Using coloured Petri nets to investigate fleet cannibalisation (2015)
Journal Article
Sheng, J., & Prescott, D. (2015). Using coloured Petri nets to investigate fleet cannibalisation. International Journal of Comadem, 18(2),

Cannibalisation is a maintenance activity that involves removing serviceable parts from inoperative platforms to replace unserviceable parts of the same type in other platforms. It can provide a significant benefit to fleet readiness, particularly if... Read More about Using coloured Petri nets to investigate fleet cannibalisation.

A stochastic model for railway track asset management (2014)
Journal Article
Andrews, J., Prescott, D., & De Rozières, F. (2014). A stochastic model for railway track asset management. Reliability Engineering and System Safety, 130, https://doi.org/10.1016/j.ress.2014.04.021

The determination of the strategy to ensure that the geometry for railway track is kept within acceptable limits, in a cost effective manner, is a complex process. It requires the simultaneous consideration of the activities which govern inspection,... Read More about A stochastic model for railway track asset management.

Modelling the effects of asset management decisions on a railway track section (2014)
Presentation / Conference Contribution
Prescott, D., & Andrews, J. D. (in press). Modelling the effects of asset management decisions on a railway track section. In Proceedings of the Second International Conference on Railway Technology: Research, Development and Maintenance. https://doi.org/10.4203/ccp.104.166

This paper reports on the development of a Markov model that uses real-world deterioration, inspection and maintenance data to assess railway track asset management. The model allows both asset management personnel and track maintenance engineers to... Read More about Modelling the effects of asset management decisions on a railway track section.

A reliability analysis method using binary decision diagrams in phased mission planning (2009)
Journal Article
Prescott, D., Remenyte-Prescott, R., Reed, S., Andrews, J., & Downes, C. (2009). A reliability analysis method using binary decision diagrams in phased mission planning. Proceedings of the Institution of Mechanical Engineers, Part O: Journal of Risk and Reliability, 223(2), https://doi.org/10.1243/1748006XJRR202

The use of autonomous systems is becoming increasingly common in many fields. A significant example of this is the ambition to deploy UAVs (unmanned aerial vehicles) for both civil and military applications. In order for autonomous systems such as th... Read More about A reliability analysis method using binary decision diagrams in phased mission planning.

Identifying the factors influencing track degradation on the UK rail network
Presentation / Conference Contribution
Clarke, S., & Prescott, D. (2017). Identifying the factors influencing track degradation on the UK rail network.

As trains traverse track, the smoothness of its vertical geometry decreases. This degradation is linked to many interrelated factors, making it difficult to identify the primary causes. Through the use of multiple layer analysis, each factor was indi... Read More about Identifying the factors influencing track degradation on the UK rail network.