Items where Creator is "Griffiths, Jonathan David"

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Number of items: 44.

Article

Deeming, Charles, Griffiths, Jonathan David and Biddle, Lucia (2020) Material Type and Position Determines the Insulative Properties of Simulated Nest Walls. Ardeola, 67 (1). pp. 127-136. ISSN 0570-7358

Kirk, Antony and Griffiths, Jonathan David (2019) On the Importance of Sleeve Flexibility in Passive Control of Critical Speeds of a Rotating Shaft Using Eccentric Sleeves. Machines, 7(3) (56). ISSN 2075-1702

Dowding, Colin, Griffiths, Jonathan David and Swainson, Mark (2018) Analytical prediction of laser mediated polymer melt and damage width. Procedia CIRP, 74 (2018). pp. 728-732. ISSN 2212-8271

Griffiths, Jonathan David and Dowding, Colin (2018) Optimization of process parameters in laser transmission welding for food packaging applications. Procedia CIRP, 74 . pp. 528-532. ISSN 2212-8271

Griffiths, Jonathan David, Kirk, Antony and Grebenik, Jarek (2018) Towards acoustic condition monitoring for detection and characterisation of laser induced breakdown in a gas turbine laser ignition system. International Journal of Condition Monitoring, 8 (2). pp. 37-41. ISSN 2047-6426

Borman, Alexander J., Dowding, Colin F., Griffiths, Jonathan D. and Seddon, Dick (2017) Exploding foil initiator (EFI) modes of operation determined using down-barrel flyer layer velocity measurement. Propellants, Explosives, Pyrotechnics, 42 (3). pp. 318-328. ISSN 0721-3115

Sheikholeslami, Ghazal, Griffiths, Jonathan David, Dearden, Geoff and Edwardson, Stuart (2016) Optimization of process parameters for high efficiency laser forming of advanced high strength steels within metallurgical constraints. Physics Procedia, 83 . pp. 277-285. ISSN 1875-3892

Griffiths, Jonathan David, Dowding, Colin and Kirk, Antony (2016) Multimode VIS–NIR transmission through silver coated hollow optical waveguides. Optik - International Journal for Light and Electron Optics, 127 (2). pp. 728-731. ISSN 0030-4026

Dowding, Colin, Dowding, Robert, Franceschini, Federica and Griffiths, Jonathan David (2015) The effect of laser power, traverse velocity and spot size on the peel resistance of a polypropylene/adhesive bond. Packaging Technology and Science, 28 (7). pp. 621-632. ISSN 0894-3214

Griffiths, Jonathan David, Riley, Mike, Borman, Alexander, Dowding, Colin, Kirk, Antony and Bickerton, Ronald (2015) Effect of flow velocity and temperature on ignition characteristics in laser ignition of natural gas and air mixtures. Optics and Lasers in Engineering, 66 . pp. 132-137. ISSN 0143-8166

Griffiths, Jonathan David, Riley, Mike J. W., Sheikholeslami, Ghazal, Edwardson, Stuart P. and Dearden, Geoff (2015) Goal driven optimization of process parameters for maximum efficiency in laser bending of advanced high strength steels. Key Engineering Materials, 639 . pp. 115-122. ISSN 1662-9795

Edwardson, Stuart, Griffiths, Jonathan David, Sheikholeslami, Ghazal and Dearden, Geoff (2014) Optimization of beam mode for high efficiency laser thermal forming within metallurgical constraints. Physics Procedia, 56 . pp. 1392-1399. ISSN 1875-3892

Griffiths, Jonathan David, Riley, Mike, Kirk, Antony, Borman, Alexander, Lawrence, Jonathan and Dowding, Colin (2014) Lean burn limit and time to light characteristics of laser ignition in gas turbines. Optics and Lasers in Engineering, 55 . pp. 262-266. ISSN 0143-8166

Dowding, Colin, Griffiths, Jonathan David and Lawrence, J. (2014) Characterization of the laser bonding of a linear low density polyethylene film to a polypropylene substrate. Lasers in Engineering, 28 (5-6). pp. 303-317. ISSN 0898-1507

Sheikholeslami, Ghazal, Griffiths, Jonathan David, Edwardson, Stuart, Watkins, Ken and Dearden, Geoff (2013) Laser forming of ERW steel square tubes within metallurgical constraints. Key Engineering Materials, 549 . ISSN 1013-9826

Griffiths, Jonathan David, Lawrence, Jonathan and Fitzsimons, P. (2013) Effect of ignition location on the in-process removal of combustion deposits from the output window of a gas turbine laser ignition system. Optics & Laser Technology, 48 . pp. 326-330. ISSN 0030-3992

Dowding, Colin, Dowding, Robert, Griffiths, Jonathan David and Lawrence, Jonathan (2013) Peel resistance characterization of localized polymer film bonding via thin film adhesive thermally activated by scanned CO2 laser. Optics & Laser Technology, 48 . pp. 358-365. ISSN 0030-3992

Griffiths, Jonathan David, Edwardson, Stuart, Dearden, Geoff, Watkins, Ken, Boegelein, S. P. and Prandina, T. (2012) Finite element modelling of the laser forming of AISI 1010 steel. Lasers In Engineering, 22 (5/6). pp. 401-412. ISSN 0898-1507

Edwardson, Stuart, Griffiths, Jonathan David, Dearden, Geoff and Watkins, Ken (2012) Towards controlled three-dimensional laser forming. Lasers in Engineering, 22 (5/6). pp. 393-399. ISSN 0898-1507

Lawrence, Jonathan, Waugh, David, Dowding, Colin and Griffiths, Jonathan David (2012) University’s lasers group solves industry issues. The Lincolnite . ISSN UNSPECIFIED

Griffiths, Jonathan David, Edwardson, S. P., Dearden, G. and Watkins, K. G. (2012) Thermal laser micro-adjustment using picosecond pulse durations. Applied Surface Science, 258 (19). pp. 7639-7643. ISSN 0169-4332

Griffiths, Jonathan David, Edwardson, Stuart, Dearden, Geoff and Watkins, Ken (2010) Finite Element modelling of laser forming at macro and micro scales. Physics Procedia, 5 (B). pp. 371-380. ISSN 1875-3892

Edwardson, Stuart, Griffiths, Jonathan David, Edwards, Kenneth, Dearden, Geoff and Watkins, Ken (2010) Laser forming: overview of the controlling factors in the temperature gradient mechanism. Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 224 (5). pp. 1031-1040. ISSN 0954-4062

Edwardson, Stuart, Griffiths, Jonathan David, Dearden, Geoff and Watkins, Ken (2010) Temperature gradient mechanism: overview of the multiple pass controlling factors. Physics Procedia, 5 (A). pp. 53-63. ISSN 1875-3892

Conference or Workshop contribution

Gbanaibolou, Jombo, Zhang, Yu, Griffiths, Jonathan David and Latimer, Tony (2018) Automated Gas Turbine Sensor Fault Diagnostics. In: ASME Turbo Expo 2018: Turbomachinery Technical Conference and Exposition, June 11–15, Oslo, Norway.

Gbanaibolou, Jombo, Zhang, Yu, Griffiths, Jonathan David and Latimer, Antony (2017) Towards an Automated System for Industrial Gas Turbine Acceptance Testing. In: 43rd Annual Conference of the IEEE Industrial Electronics Society (IECON 2017), 29 Oct - 01 Nov 2017, Beijing, China.

Griffiths, Jonathan David, Grebenik, Jarek and Kirk, Antony (2017) Noise Robust Acoustic Signal Processing Using a Wavelet Packet Decomposition Approach for Detection and Characterization of Laser Induced Breakdown. In: Laser Ignition Conference 2017, 20-23 June 2017, Bucharest, Romania.

Kirk, Antony, Griffiths, Jonathan David, Bingham, Chris, Knowles, Grahame and Bickerton, Ronald (2016) Passive control of critical speeds of a rotating shaft using eccentric sleeves: model development (GT2016-58155). In: ASME Turbo Expo 2016, 13 - 17 June 2016, Seoul, South Korea.

Borman, Alexander, Seddon, Dick, Dowding, Colin and Griffiths, Jonathan David (2015) Variable Effects Initiator. In: MCM ITP 2015, 21st - 22nd October 2015, Brighton, UK.

Griffiths, Jonathan David, Dowding, Colin, Riley, Mike and Bickerton, Ronald (2015) Gas turbine laser ignition via solid core optical fiber? A photon flux density approach. In: Laser Ignition Conference, 27-30 April, Argonne, Illinois United States.

Franceschini, Federica, Demir, Ali Gökhan, Dowding, Colin, Previtali, Barbara and Griffiths, Jonathan David (2014) Laser colouring on titanium alloys: characterisation and potential applications. In: X Conferenza del Colore, 11th-12th September 2014, Genoa.

Griffiths, Jonathan David, Riley, Mike, Borman, Alexander, Dowding, Colin, Kirk, Antony and Bickerton, Ronald (2014) Effect of flow velocity and temperature on minimum ignition energy in laser-induced spark ignition of gaseous fuels. In: 1st International Symposium on Energy Challenges and Mechanics, 8-10 July, 2014, Aberdeen.

Griffiths, Jonathan David, Sheikholeslami, Ghazal, Clark, Samuel, Edwardson, Stuart and Dearden, Geoff (2014) Towards optimization of beam mode for high efficiency laser thermal forming within metallurgical constraints. In: International Workshop on Thermal Forming and Welding Distortion 2014, April 09-10, 2014, Bremen, Germany.

Griffiths, Jonathan David and Lawrence, Jonathan (2012) Laser cleaning of the output window in a laser ignition system for gas turbines. In: ICALEO 2012, 23rd - 27th September 2012, Anaheim, CA, USA.

Griffiths, Jonathan David and Lawrence, Jonathan (2012) Transmissive optic system for manipulation of ignition location in laser ignition for gas turbines. In: ICALEO 2012, 23rd - 27th September 2012, Anaheim, CA, USA.

Griffiths, Jonathan David, Edwardson, Stuart, Dearden, Geoff and Watkins, Ken (2012) Thermal laser micro-adjustment using ultra-short pulses. In: 37th international MATADOR conference, 25th-27th July 2012, Manchester, UK.

Griffiths, Jonathan David, Edwardson, Stuart, Dearden, Geoff and Watkins, Ken (2011) Laser micro adjustment using ultra short pulses. In: ICALEO 2011, 23rd - 27th October 2011, Orlando, FL, USA.

Griffiths, Jonathan David, Edwardson, Stuart, Dearden, Geoff and Watkins, Ken (2011) Modelling of real temporally variant beam shapes in laser materials processing. In: ICALEO 2011, 23rd - 27th October 2011, Orlando, FL, USA.

Griffiths, Jonathan David, Edwardson, Stuart, Dearden, Geoff and Watkins, Ken (2011) Short pulse thermal laser microforming technique. In: IWOTE'11 International Workshop on Thermal Forming and Welding Distortion, 6th-7th April 2011, Bremen, DE.

Griffiths, Jonathan David, Edwardson, Stuart, Boegelein, Thomas, Dearden, Geoff and Watkins, Ken (2011) The effect of graphite burn off on multi pass laser forming. In: International Workshop on Thermal Forming and Welding Distortion, 6th-7th April 2011, Bremen, DE.

Edwardson, Stuart, Griffiths, Jonathan David, Dearden, Geoff and Watkins, Ken (2010) Towards controlled 3D laser forming. In: MATADOR 2010, 14 – 16th July 2010, Manchester.

Griffiths, Jonathan David, Edwardson, Stuart, Dearden, Geoff and Watkins, Ken (2009) Finite element modelling of the laser forming of AISI 1010 steel. In: MATADOR 2010, 14 – 16th July 2010, Manchester.

Prithwani, Indra, Otto, Andreas, Scmidt, Michael, Griffiths, Jonathan David, Watkins, Ken, Edwardson, Stuart and Dearden, Geoff (2009) Laser beam forming of aluminium plates under application of moving mesh and adapted heat source. In: Lasers in Manufacturing 2009, 15 - 18 June 2009, Munich.

Thesis

Griffiths, Jonathan David (2012) Modelling of laser forming at macro and micro scales. PhD thesis, University of Liverpool.

This list was generated on Thu Aug 13 17:43:27 2020 BST.