All Outputs (9)

Component-based modelling of PEM fuel cells with bond graphs (2017)
Journal Article

A polymer electrolyte membrane (PEM) fuel cell is a power generation device that transforms chemical energy contained within hydrogen and oxygen gases into useful electricity. The performance of a PEMFC unit is governed by three interdependent physic... Read More about Component-based modelling of PEM fuel cells with bond graphs.

Railway bridge structural health monitoring and fault detection: state-of-the-art methods and future challenges (2017)
Journal Article

Railway importance in the transportation industry is increasing continuously, due to the growing demand of both passenger travel and transportation of goods. However, more than 35% of the 300,000 railway bridges across Europe are over 100-years old,... Read More about Railway bridge structural health monitoring and fault detection: state-of-the-art methods and future challenges.

Accelerating Petri-Net simulations using NVIDIA graphics processing units (2017)
Journal Article

Stochastic Petri-Nets (PNs) are combined with General-Purpose Graphics Processing Unit (GPGPUs) to develop a fast and low cost framework for PN modelling. GPGPUs are composed of many smaller, parallel compute units which has made them ideally suited... Read More about Accelerating Petri-Net simulations using NVIDIA graphics processing units.

Delayed maintenance modelling considering speed restriction for a railway section (2017)
Journal Article

The deterioration of track geometry depends on several factors of which the speed of the train is one. Imposing a speed restriction can slow down the track deterioration and allows a longer survival time before a serious condition is achieved. Preven... Read More about Delayed maintenance modelling considering speed restriction for a railway section.

A new algorithm for prognostics using subset simulation (2017)
Journal Article

This work presents an efficient computational framework for prognostics by combining the particle filter-based prognostics principles with the technique of Subset Simulation, first developed in S.K. Au and J.L. Beck [Probabilistic Engrg. Mech., 16 (2... Read More about A new algorithm for prognostics using subset simulation.

A Petri net model for railway bridge maintenance (2017)
Journal Article

This article describes the application of the Petri net modelling approach to managing the maintenance process of railway bridges. The Petri net model accounts for the degradation, inspection and repair processes of individual bridge elements in inve... Read More about A Petri net model for railway bridge maintenance.

A modelling approach for railway overhead line equipment asset management (2017)
Journal Article

© 2017 Elsevier Ltd The Overhead Line Equipment (OLE) is a critical sub-system of the 25 kV AC overhead railway electrification system. If OLE asset management strategies can be evaluated using a whole lifecycle cost analysis that considers degradati... Read More about A modelling approach for railway overhead line equipment asset management.

Maintenance processes modelling and optimisation (2017)
Journal Article

A Maintenance Procedure is conducted in order to prevent the failure of a system or to restore the functionality of a failed system. Such a procedure consists of a series of tasks, each of which has a distribution of times to complete and a probabili... Read More about Maintenance processes modelling and optimisation.

System design and maintenance modelling for safety in extended life operation (2017)
Journal Article

It is frequently the most cost effective option to operate systems and infrastructure over an extended life period rather than enter a new build programme. The condition and performance of existing systems operated beyond their originally intended de... Read More about System design and maintenance modelling for safety in extended life operation.