Category Archive: Publications

Sep 20

Discharge-mode testing of the X-EPT microwave ECR gridded Ion thruster for telecoms applications

David Hoffman and Dr Angelo Grubisic IEPC-2019-652 Presented at the 36th International Electric Propulsion Conference University of Vienna • Vienna, Austria September 15-20, 2019 Abstract A low-cost, 20-cm-diameter microwave electron cyclotron resonance ion thruster (Xenon Electric Propulsion Thruster, XEPT) has been built and tested in discharge only mode to investigate the suitability of the technology …

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Sep 20

Estimation of track decay rates from laboratory measurements on a baseplate fastening system

Estimation of track decay rates from laboratory measurements on a baseplate fastening system Hima, Boniface S., Thompson, David, Squicciarini, Giacomo, Ntotsios, Evangelos and Herron, David (2019) Estimation of track decay rates from laboratory measurements on a baseplate fastening system. 13th International Workshop on Railway Noise, Belgium. 16 – 20 Sep 2019. 8 pp . Venue – Dates: 13th International Workshop on Railway Noise, Belgium, 2019-09-16 – …

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Sep 16

Estimation of track decay rates from laboratory measurements on a baseplate fastening system

Boniface Hima, Prof David Thompson, Dr Giacomo Squicciarini, Evangelos Ntotsios and David Herron 13th International Workshop on Railway Noise 16/09/19 → 20/09/19 Ghent, Belgium Abstract The dynamic properties of the rail fastening system affect the damping of the rail and the degree of coupling between the rail and the foundation. It is well known that the rate …

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Sep 16

Structural effects on the high temperature performance of the Super High Temperature Additive Manufactured Resistojet (STAR)

Christopher Ogunlesi, Dr Angelo Grubisic, Dr Federico Romei and Matthew Robinson 36th International Electric Propulsion Conference: IEPC 15/09/19 → 20/09/19 Vienna, Austria Abstract This study uses non-destructive techniques to investigate the surface roughness, porosity and overall build quality of tantalum, tungsten and 316L stainless steel versions of the Super High Temperature Additive Manufactured Resistojet (STAR). The analysis …

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Sep 15

The development and qualification of the STAR resistojet system for telecommunications applications

Federico Romei, Matthew Robinson, Christopher Ogunlesi, Dr Dave Gibbon and Dr Angelo Grubisic 36th International Electric Propulsion Conference University of Vienna • Vienna, Austria September 15-20, 2019 IEPC_2019_Presentation_v1 UK Space Agency Flagship Super-High Temperature Resistojets for All-Electric Telecommunication Satellites (STAR)  National Space Technology Programme (NSTP) Flagship project: 2-years TRL innovation (KO in April) – …

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Jul 03

Analysis of a bridge approach: long-term behaviour from short-term response

Giacomo Ognibene, Prof William Powrie, Dr Louis Le Pen and Dr John Harkness 15th Railway Engineering Conference, Edinburgh, U.K. 3rd July 2019 Abstract Transition zones are locations where trackbed support conditions change abruptly, for example from an earth embankment onto a bridge. The track geometry at these sites degrades faster than regular railway track, requiring …

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Jul 03

Evaluating the performance of different sleeper shapes and materials

Toshan Rampat, Dr Louis Le Pen, Prof William Powrie, Dr John Harkness and Dr Antonios Zervos Railway Engineering-2019 15th International Conference & Exhibition 3rd -4th July 2019 Abstract Sleepers are conventionally designed in a cuboid shape of similar volume regardless of the material of construction. However, the bending stiffness and load transfer into the track …

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Jul 01

EVALUATING THE PERFORMANCE OF DIFFERENT SLEEPER SHAPES AND MATERIALS

EVALUATING THE PERFORMANCE OF DIFFERENT SLEEPER SHAPES AND MATERIALS Toshan Rampat, Louis Le Pen, William Powrie, John Harkness T.C.Rampat@soton.ac.uk, Faculty of Engineering and Physical Sciences, University of Southampton, Southampton, United Kingdom In Railway Engineering-2019: 15th International Conference & Exhibition. Published date: 1 July 2019 URI: http://eprints.soton.ac.uk/id/eprint/434411 KEYWORDS: Sleeper shapes, support conditions, composite, finite difference, finite element ABSTRACT Sleepers …

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Jan 01

Potential of wireless power transfer for dynamic charging of electric vehicles

Potential of wireless power transfer for dynamic charging of electric vehicles Author(s): Luke Hutchinson 1 ; Ben Waterson 1 ; Bani Anvari 1, 2 ; Denis Naberezhnykh 3 IET Intelligent Transports Systems Source: Volume 13, Issue 1, January 2019, p. 3 – 12 DOI:  10.1049/iet-its.2018.5221 , Print ISSN 1751-956X, Online ISSN 1751-9578 Abstract Wireless power transfer (WPT) offers a viable means of charging electric vehicles (EVs) whilst in a dynamic state (DWPT), mitigating issues concerning vehicle …

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Dec 18

Microwave neutralizer development for the X-EPT ECR microwave gridded ion thruster

Sam Reeve, Dr Angelo Grubisic, Joseph Edwards, Peter Turner, Richard Jones, Marcus Collier-Wright, Alessandro Arno, Wojciech Zakrzewski, Maite Sevilla, Paul Aimone and Francois Dary Journal of Physics D: Applied Physics 0022-3727 Scopus rating (2019): CiteScore 5.3 SJR 0.899 SNIP 1.144 Abstract This paper presents the development and testing of a microwave neutralizer intended for the first ever dual-stage …

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