Department of Engineering

Dr Tim Flack - Publications

Number of items: 57.

Article

Peng, MT and Flack, TJ (2016) Design and Analysis of an In-Wheel Motor with Hybrid Pole-Slot Combinations. IEEE Transactions on Magnetics, 52. ISSN 0018-9464

El-Mezeini, AM and Flack, TJ and Welland, ME (2015) Control of magnetic vortex chirality and polarization in indented and notched nanomagnetic disks. Materials Research Express, 1.

Ainslie, MD and Yuan, W and Flack, TJ (2013) Numerical analysis of AC loss reduction in HTS superconducting coils using magnetic materials to divert flux. IEEE Transactions on Applied Superconductivity, 23. ISSN 1051-8223

Ainslie, MD and Flack, TJ and Campbell, AM (2012) Calculating transport AC losses in stacks of high temperature superconductor coated conductors with magnetic substrates using FEM. Physica C: Superconductivity and its Applications, 472. pp. 50-56. ISSN 0921-4534

Ainslie, MD and Yuan, W and Hong, Z and Pei, R and Flack, TJ and Coombs, TA (2011) Modeling and electrical measurement of transport AC loss in HTS-based superconducting coils for electric machines. IEEE Transactions on Applied Superconductivity, 21. pp. 3265-3268. ISSN 1051-8223

Ainslie, MD and Yuan, WJ and Hong, ZY and Pei, RL and Flack, TJ and Coombs, TA (2011) Modeling and Electrical Measurement of Transport AC Loss in HTS-Based Superconducting Coils for Electric Machines. IEEE T APPL SUPERCON, 21. pp. 3265-3268. ISSN 1051-8223

Ainslie, MD and Rodriguez-Zermeno, VM and Hong, ZY and Yuan, WJ and Flack, TJ and Coombs, TA (2011) An improved FEM model for computing transport AC loss in coils made of RABiTS YBCO coated conductors for electric machines. SUPERCOND SCI TECH, 24. -. ISSN 0953-2048

Ainslie, MD and Flack, TJ and Hong, ZY and Coombs, TA (2011) Comparison of first- and second-order 2D finite element models for calculating AC loss in high temperature superconductor coated conductors. COMPEL, 30. pp. 762-774. ISSN 0332-1649

Ainslie, MD and Jiang, Y and Xian, W and Hong, Z and Yuan, W and Pei, R and Flack, TJ and Coombs, TA (2010) Numerical analysis and finite element modelling of an HTS synchronous motor. PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 470. pp. 1752-1755. ISSN 0921-4534

Perry, MA and Flack, TJ and Koltsov, DK and Welland, ME (2007) Simulation of the micromagnetic properties of sub-micron permalloy dot arrays. Journal of Magnetism and Magnetic Materials, 314. pp. 75-79. ISSN 0304-8853

Perry, MA and Koltsov, DK and Flack, TJ and Welland, ME (2007) The micromagnetic properties of modified permalloy nanodot arrays. Journal of Magnetism and Magnetic Materials, 314. pp. 75-79. ISSN 0304-8853

Roberts, PC and McMahon, RA and Tavner, PJ and Maciejowski, JM and Flack, TJ (2005) Equivalent circuit for the brushless doubly fed machine (BDFM) including parameter estimation and experimental verification. IEE Proceedings: Electric Power Applications, 152. pp. 933-942. ISSN 1350-2352

Peng, MT and Flack, TJ (2005) Numerical analysis of the coupled circuit and cooling holes for an electromagnetic shaker. IEEE Transactions on Magnetics, 41. pp. 47-54. ISSN 0018-9464

Peng, MT and Flack, TJ (2005) Numerical analysis of the coupled circuit and cooling holes for an electromagnetic shaker. IEEE Transactions on Magnetics, 41. pp. 47-54. ISSN 0018-9464

Wang, R and Mohellebi, H and Flack, TJ and Kamper, MJ and Buys, JD and Feliachi, M (2002) Two-dimensional Cartesian air-gap element (CAGE) for dynamic finite-element modeling of electrical machines with a flat air gap. IEEE Transactions on Magnetics, 38. pp. 1357-1360. ISSN 0018-9464

Wang, R and Mohellebi, H and Flack, TJ and Kamper, MJ and Buys, JD and Feliachi, M (2002) Two-dimensional Cartesian air-gap element (CAGE) for dynamic finite-element modeling of electrical machines with a flat air gap. IEEE Transactions on Magnetics, 38. pp. 1357-1360. ISSN 0018-9464

Knight, RE and Flack, TJ (1999) Application of domain decomposition and transmission line modelling techniques to 2D time-domain finite element problems. IEEE Transactions on Magnetics, 35. pp. 1478-1481. ISSN 0018-9464

Flack, TJ and Knight, RE (1999) On the domain decomposition and transmission line modelling finite element method for time-domain induction motor analysis. IEEE Transactions on Magnetics, 35. pp. 1290-1293. ISSN 0018-9464

Knight, RE and Flack, TJ (1999) Application of domain decomposition and transmission line modelling techniques to 2D, time-domain, finite element problems. IEEE Transactions on Magnetics, 35. pp. 1478-1481. ISSN 0018-9464

Flack, TJ and Knight, RE (1999) On the domain decomposition and transmission line modelling finite element method for time-domain induction motor analysis. IEEE Transactions on Magnetics, 35. pp. 1290-1293. ISSN 0018-9464

Flack, TJ and Williamson, S (1996) Investigation of the losses in the stator duct spacers of large AC motors using the A-ψ 3-D eddy current formulation. IEEE Transactions on Magnetics, 32. pp. 1557-1560. ISSN 0018-9464

Baholo, B and Atallah, K and Mellor, PH and Howe, D and Mueller, MA and Flack, TJ and Williamson, S (1996) Effect of high frequency flux ripple on iron loss in induction machines. Journal of Magnetism and Magnetic Materials, 157-15. pp. 444-446. ISSN 0304-8853

Flack, TJ and Williamson, S (1996) Investigation of the losses in the stator duct spacers of large A.C. motors using the A -ip 3-D eddy current formulation. IEEE Transactions on Magnetics, 32. pp. 1557-1560. ISSN 0018-9464

Williamson, S and Flack, TJ (1994) Effect of radial rotor ventilation ducts on cage motor equivalent circuit parameters. IEE Proceedings, Part B: Electrical Power Applications, 141. pp. 155-162. ISSN 1350-2352

Flack, TJ and Williamson, S (1992) Investigation of current flow in the bars of radially-ducted cage rotors using a three-dimensional finite-element eddy current formulation. IEEE Transactions on Magnetics, 22. pp. 1378-1381. ISSN 0018-9464

Hu, D and Zou, J and Flack, TJ and Xu, X and Feng, H and Ainslie, MD Analysis of fields in an air-cored superconducting synchronous motor with an HTS racetrack field winding. (Unpublished)

Nathan, KS and Ghosh, S and Tripathi, PR and Siwakoti, YP and Flack, TJ and Li, X and Long, T Benefits of the Coupled Inductors Combined Cuk-SEPIC (CI-CCS) Converter. The Journal of Engineering. (Unpublished)

Zou, J and Hu, D and Flack, TJ and Feng, H and Xu, X and Ainslie, MD Design and Performance Analysis of a 2.5 MW-Class HTS Synchronous Motor for Ship Propulsion. (Unpublished)

Flack, TJ and Cebon, D and Miller, J Modelling the Magnetic Performance of a Fast Pneumatic Brake Actuator. Journal of Dynamic Systems Measurement and Control: Transactions of the ASME. (Unpublished)

Book Section

Flack, TJ and Chin, SL Micromagnetics: Finite element analysis of nano-sized magnetic materials using Matlab. In: Computational nanotechnology modeling and applications with MATLAB. CRC Press. (Unpublished)

Conference or Workshop Item

Ghosh, SS and Flack, TJ and Long, T (2018) Integrated starter alternator sizing for micro / mild hybrid vehicle using Monte Carlo simulation. In: Transportation Electrification Conference (ITEC-India), 2017 IEEE, 2017-12-12 to 2017-12-15 pp. 1-6..

Nathan, K and Ghosh, S and Tripathi, P and Siwakoti, Y and Flack, T and Li, X and Long, T (2018) Benefits of the Coupled Inductors Combined Cuk-SEPIC (CI-CCS) Converter. In: The 9th International Conference on Power Electronics, Machines and Drives, 2018-4-17 to 2018-4-19.

Sarafianos, D and Flack, TJ and Llano, DX and McMahon, RA and Wen, B and Pickering, S (2017) Efficiency improvement and power loss breakdown for a Lundell-alternator/active-rectifier system in automotive applications. In: UNSPECIFIED pp. 2264-2269..

Sarafianos, D and Llano, DX and Wen, B and Flack, TJ and McMahon, RA and Pickering, S (2016) Control and efficiency analysis for a Lundell-alternator/active-rectifier system in automotive applications. In: UNSPECIFIED 104DUMMY-..

Sarafianos, D and McMahon, RA and Flack, TJ and Pickering, S (2015) Characterisation and modelling of automotive Lundell alternators. In: UNSPECIFIED pp. 928-933..

Peng, MT and Chien, SH and Chung, YC and Liu, TS and Flack, TJ (2014) A novel high-torque-density and wide-speed-range hub motor for electric vehicle propulsion. In: UNSPECIFIED.

Sarafianos, D and Logan, TG and McMahon, RA and Flack, TJ and Pickering, S (2014) Alternator loss breakdown and use of alternative rectifier diodes for improvement of vehicle electrical power system efficiency. In: UNSPECIFIED pp. 502-507..

Roberts, PC and Maciejowski, JM and McMahon, RA and Flack, TJ (2004) A simple rotor current observer with an arbitrary rate of convergence for the brushless Doubly-Fed (Induction) Machine (BDFM). In: The IEEE International Conference on Control Applications, 2004-9-2 to 2004-9-4, Taipei, Taiwan pp. 266-271..

Roberts, PC and McMahon, RA and Tavner, PJ and Maciejowski, JM and Flack, TJ and Wang, X (2004) OS11-6 performance of rotors for the brushless Doubly-Fed Induction Machine (BDFM). In: The 16th International Conference on Electrical Machines, 2004-9-6 to --, Cracow, Poland pp. 607-608..

Roberts, PC and Abdi Jalebi, E and McMahon, RA and Flack, TJ (2004) Real-time rotor bar current measurement using bluetooth technology for a brushless doubly-fed machine (BDFM). In: The 2nd IEE International Conference on Power Electronics, Machines and Drives (PEMD 2004); Vol. 1, 2004-3- to --, Edinburgh, UK pp. 120-125..

Brown, CA and Flack, TJ (2002) Optimal controller design for high precision linear positioning systems based on permanent magnet synchronous motors. In: The International Conference on International Conference on Power Electronics Machines and Drives, 2002-4- to --, Bath, UK pp. 347-352..

Roberts, PC and Flack, TJ and Maciejowski, JM and McMahon, RA (2002) Two stabilising control strategies for the brushless doubly-fed machine (BDFM). In: International Conference on Power Electronics Machines and Drives, 2002-4- to --, Bath, UK pp. 341-346..

Perry, MA and Koltsov, DK and Flack, TJ and Welland, ME (2001) A new numerical method in micromagnetics. In: International Conference on Magnetism and Magnetic Materials, 2001-11- to --, Seattle, WA, US.

Majzoub, RA and Flack, TJ (2000) Analysis of the effect of damping on load angle perturbations of synchronous generators driven by diesel engines. In: The International Conference on Electrical Machines (ICEM'00), 2000-8- to --, Espoo, Finland pp. 893-897..

Chong, EFH and Flack, TJ (2000) Comparison of coupled circuit and eddy-current finite-element methods for modelling induction motors under conditions of supply imbalance. In: The International Conference on Electrical Machines (ICEM'00), 2000-8- to --, Espoo, Finland pp. 193-197..

Flack, TJ and Knight, RE (2000) Prediction of the performance of large induction motors including the effect of radial ventilation ducts using 2-D and 3-D finite-element formulations. In: The International Conference on Electrical Machines (ICEM'00), 2000-8- to --, Espoo, Finland pp. 372-376..

Peng, MT and Flack, TJ (1999) Comparison of magnetic vector potential scalings used in the finite element solution of the axisymmetric vector Helmholtz equation. In: The 12th COMPUMAG Conference on the Computation of Electromagnetic Fields, 1999-10- to --, Sapporo, Japan.

Knight, RE and Flack, TJ (1998) Exploitation of symmetry in two-dimensional, finite-element, time-domain modelling of induction motors. In: The International Conference on Electrical Machines (ICEM'98), 1998-9- to --, Istanbul, Turkey pp. 1413-1418..

Flack, TJ and Williamson, S (1996) On the possible use of magnetic slot wedges to reduce iron losses in cage motors. In: The International Conference on Electrical Machines (ICEM'96), 1996-9- to --, Vigo, Spain pp. 417-422..

Mueller, MA and Williamson, S and Flack, TJ and Atallah, K (1995) Calculation of iron losses from time-stepped finite-element models of cage induction machines. In: The 7th International Conference on Electrical Machines and Drives, 1995-9- to --, Durham, UK pp. 88-92..

WILLIAMSON, S and FLACK, TJ and VOLSCHENK, AF (1995) REPRESENTATION OF SKEW IN TIME-STEPPED 2-DIMENSIONAL FINITE-ELEMENT MODELS OF ELECTRICAL MACHINES. In: UNSPECIFIED pp. 1009-1015..

Flack, TJ and Volschenk, AF (1994) Computational aspects of time-stepping finite-element analysis using an air-gap element. In: The International Conference on Electrical Machines (ICEM'94), 1994-9- to --, Paris, France pp. 158-163..

Williamson, S and Flack, TJ and Volschenk, AF (1994) Representation of skew in time-stepped two-dimensional finite-element models of electrical machines. In: The 29th Industry Applications Conference (IAC), 1994-10- to --, Denver, CO, US pp. 143-148..

Flack, TJ and Williamson, S (1993) Air gap fields and pressure waves in closed-slot cage rotor induction motors. In: The 6th International Conference on Electrical Machines and Drives, 1993-9- to --, Oxford, UK pp. 552-557..

FLACK, TJ and WILLIAMSON, S (1992) INVESTIGATION OF CURRENT FLOW IN THE BARS OF RADIALLY-DUCTED CAGE ROTORS USING A 3-DIMENSIONAL FINITE-ELEMENT EDDY-CURRENT FORMULATION. In: UNSPECIFIED pp. 1378-1381..

Ghosh, S and Flack, T and Long, T Independent Phase Belt Controlled Phase Pole Modulated Induction Machine for Integrated Starter Alternator Application. In: The 9th International Conference on Power Electronics, Machines and Drives, 2018-4-17 to 2018-4-19. (Unpublished)

Thesis

Flack, TJ (1990) Induction motor modelling using Finite-elements. PhD thesis, UNSPECIFIED.

This list was generated on Wed Oct 21 17:29:36 2020 BST.