• Benefit and performance impact analysis of using hydrogen fuel cell powered e-taxi system on A320 class airliner 

  Stockford, Jack andrew; Lawson, Craig; Liu, Z (Cambridge University Press, 2019-04-05)

  This paper presents the work carried out to evaluate the benefits and performance impacts of introducing a hydrogen fuel cell powered electric taxiing system to a conventional short-haul aircraft. Tasks carried out in this ...
• Transverse impact response analysis of graphene panels: Impact limits 

  Sonmez, Muhammed Burak; Ghasemnejad, Hessam; Kamran, Hammad; Webb, Phil (Scientific Research, 2019-04-08)

  Explicit numerical studies were conducted to determine the transverse impact response of graphene panels. Although the mechanical properties of graphene are well documented in both quasi-static and dynamic conditions via ...
• Effective use of metallic Z-pins for composites' through-thickness reinforcement 

  M'membe, Beene; Yasaee, Mehdi; Hallett, Stephen; Partridge, Ivana K. (Elsevier, 2019-02-28)

  Z-pins offer effective through-thickness reinforcement for laminated composites. Various studies have however, shown that metal Z-pins are less effective at bridging Mode I delaminations than carbon-fibre composite Z-pins, ...
• General expression of poly(methyl methacrylate) optical fiber Bragg grating sensing response 

  Zhang, Wei; Webb, D. J. (IEEE, 2018-12-25)

  Poly(methyl methacrylate) (PMMA) optical fiber inherently responds to the changes of temperature and relative humidity. PMMA optical fiber Bragg grating (POFBG) has been reported with diverse temperature and relative ...
• Integrated gas turbine system diagnostics: components and sensor faults quantification using artificial neural networks 

  Osigwe, Emmanuel O.; Li, Yi-Guang; Suresh, Sampath; Jombo, Gbanaibolou (International Society for Air Breathing Engines (ISABE), 2017-09-11)

  The role of diagnostic systems in gas turbine operations has changed over the past years from a single support troubleshooting maintenance to a more proactive integrated diagnostic system. This has become so, because detecting ...
• Multi-objective optimal longitudinal flight control system design for large flexible transport aircraft 

  Song, Sipeng; Whidborne, James F.; Lone, Mudassir; Molina-Cristobal, Arturo (IEEE, 2018-11-01)

  This paper presents a multi-objective evolutionary algorithm design of a longitudinal optimal controller for a large flexible transport aircraft. The algorithm uses a mixed optimization approach based on a combination of ...
• Extremum seeking control for truck drag reduction 

  Papageorgiou, Georgios; Barden, Jason; Whidborne, James F.; Garry, Kevin P. (2018-11-01)

  The aerodynamic drag on a heavy truck tractor and semi-trailer combination can be reduced by means of a wind deflector installed on the roof of the tractor cab. The drag reduction is dependent upon the height and shape of ...
• Substitution of cast iron engine components with aluminium alloys: a life cycle perspective 

  Jolly, Mark; Salonitis, Konstantinos; Pagone, Emanuele; Papanikolaou, Michail (VDI Verlag GmbH, 2019-01-30)

  Environmental sustainability is nowadays one of the most important global challenges. It is common that the amount of CO2 emissions is being used as a measure of the environmental impact of vehicles. As a result, manufacturers ...
• Development of a fuel cell hybrid-powered unmanned aerial vehicle 

  Savvaris, Al; Xie, Ye; Malandrakis, Konstantinos; Tsourdos, Antonios (IEEE, 2016-08-08)

  This paper describes the design and development of a hybrid fuel cell/battery propulsion system for a long endurance small UAV. The high level system architecture is presented, followed by the hardware-in-the-loop testing ...
• Microwave-assisted rapid preparation of hollow carbon nanospheres@TiN nanoparticles for lithium-sulfur batteries 

  Tu, Jianxin; Li, HeJun; Zou, JiZhao; Zeng, ShaoZhong; Zhang, Qi; Yu, Liang; Zenga, Xierong (Royal Society of Chemistry, 2018-11-02)

  Highly conductive titanium nitride (TiN) has a strong anchoring ability for lithium polysulfides (LiPSs). However, the complexity and high cost of fabrication limit their practical applications. Herein, a typical structure ...
• More frequent flight in the ash polluted sky using electrostatic filter 

  Zare Shahneh, Amir (Madridge Publishers, 2019-04-10)

  Thousands of flights were banned and millions of people have affected in Europe in 2010. This was the first natural event which caused a wide and long flight ban in the world, the biggest shut down after Second World War. ...
• Dynamic inter-fibre failure of unidirectional composite laminates with through-thickness reinforcement 

  Cui, Hao; Yasaee, Mehdi; Melro, António R. (Elsevier, 2019-04-03)

  Unidirectional composite laminates reinforced in the thickness direction with Z-pins are tested in tension and compression with different off-axis angles at high loading rate. A split Hopkinson bar setup and a high speed ...
• Assessment of air flow distribution and hazardous release dispersion around a single obstacle using Reynolds-averaged Navier-Stokes equations 

  Vasilopoulos, Konstantinos; Sarris, Ioannis E.; Tsoutsanis, Panagiotis (Elsevier, 2019-04-09)

  The flow around a cubical building, with a pollution source at the central point of the top of the cube, is studied. The Reynolds-averaged Navier-Stokes and species concentration equations are solved for Reynolds number, ...
• State of the art in simulation-based optimisation for maintenance systems 

  Alrabghi, Abdullah; Tiwari, Ashutosh (Elsevier, 2014-12-29)

  Recently, more attention has been directed towards improving and optimising maintenance in manufacturing systems using simulation. This paper aims to report the state of the art in simulation-based optimisation of maintenance ...
• Predictive control for soaring of unpowered autonomous UAVs 

  Lee, Darren; Longo, Stefano; Kerrigan, Eric C. (Elsevier, 2012-08-27)

  In this paper we propose an energy-harvesting controller design for a 3 degree-of-freedom glider in a nonlinear MPC framework. The glider is simulated within a generic atmospheric updraft environment with the aim of ...
• Simulation based optimization of joint maintenance and inventory for multi-components manufacturing systems 

  Alrabghi, Abdullah; Tiwari, Ashutosh; Alabdulkarim, Abdullah (IEEE, 2014-01-27)

  Maintenance and spare parts management are interrelated and the literature shows the significance of optimizing them jointly. Simulation is an efficient tool in modeling such a complex and stochastic problem. In this paper, ...
• A review of simulation-based optimisation in maintenance operations 

  Alrabghi, Abdullah; Tiwari, Ashutosh (IEEE, 2013-06-10)

  This paper aims to report the state of the art of research in simulation-based optimisation of maintenance operations by systematically classifying the published literature and outlining various tools and techniques used ...
• Number representation in predictive control 

  Kerrigan, Eric C.; Jerez, Juan L.; Longo, Stefano; Constantinides, George A. (Elsevier, 2012-09-30)

  In predictive control a nonlinear optimization problem has to be solved at each sample instant. Solving this optimization problem in a computationally efficient and numerically reliable fashion on an embedded system is a ...
• Optimization approaches for controller and schedule codesign in networked control 

  Longo, Stefano; Herrmann, Guido; Barber, Phil (Elsevier, 2009-06-17)

  We consider the offline optimization of a sequence for communication scheduling in networked control systems. Given a continuous-time Linear Quadratic Regulator (LQR) problem we design a sampled-data periodic controller ...
• Controllability, Observability in Networked Control 

  Longo, Stefano; Herrmann, Guido; Barber, Phil (Elsevier, 2009-06-18)

  We reconsider and advance the analysis of structural properties (controllability and observability) of a class of linear Networked Control Systems (NCSs). We model the NCS as a periodic system with limited communication ...

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