Professor Paul Meehan

Professor

School of Mechanical and Mining Engineering
Faculty of Engineering, Architecture and Information Technology
meehan@uq.edu.au
+61 7 336 54320

Overview

Dr Paul Meehan's research interests are in: Smart Machines; Railway Engineering and Technology, Analysis and Control of Nonlinear Instabilities and chaos in rolling processes, spacecraft systems and biological/human body processes, advanced manufacturing modelling and analysis.

Dr Paul Meehan is an expert in modelling, analysis and control in non-linear mechanics applied to engineering systems. He has over 15 years experience in engineering research, development, commercialization and consulting in the areas of non-linear dynamics, vibrations, controls, rolling contact, elastoplastic and wear phenomena, with applications to manufacturing, mining, railway, spacecraft and biomedical systems. He has initiated and led many successful large collaborative R&D projects in this area.

Paul is currently leading major projects in prediction and control of non-linear phenomena in railway, mining and manufacturing systems, including novel Chatter Control, Advanced Duty Detection and Millipede Technology. He has organised three international conferences in various areas of non-linear mechanics and has authored over 80 internationally refereed publications and three international patents in this area. He also teaches several intermediate and advanced level courses in mechanics at the University of Queensland, and consults regularly to high technology industries.

Qualifications

  • Bachelor of Engineering (Hons I), The University of Queensland
  • PhD, The University of Queensland

Publications

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Grants

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Supervision

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Available Projects

  • Present project will explore the use of recently developed datamining techniques for use as software sensors. A software sensor can predict critical output variables from process inputs and other measured variables without incurring measurement delay and maintenance costs. Such prediction is necessary for implementation of precise feedback and control in many processes. The major objective of the present project will be to develop and test advanced duty detection models based on the dutymeter concept implemented by the Smart Machines Group on draglines. The project will involve the implementation of advanced datamining techniques such as wavelet based methods and or neural networks in order to classify and identify operator practices causing higher levels of duty on the machine.

  • The purpose of this project is to design and build physical models to demonstrate nonlinear phenomena in dynamics.

    In particular, it is firstly aimed to develop one or more simple but demonstration sized models for demonstrating stability and conservation concepts in 3D rigid body motion. Possible models include the tippetop (a spinning top that inverts itself), the rattleback stone (a rigid body of unidirectional spin) and Chalygin's ball (a spherical but inertially asymmetric spinning ball).

    Secondly, it is aimed to develop a simple demonstration model for showing chaotic instabilities in a spacecraft, dragline or another rotating multibody system.

    The design parameters will be based upon theoretical predictions of phenomena in available literature. The thesis will be expected to contain a thorough review of this literature and theoretical calculations predicting the phenomena in the physical models.

  • The inner ear is an extremely sophisticated instrument for converting mechanical vibrational energy to neural energy that our brain interprets as sound. The operation of this system has been shown to rely on highly nonlinear dynamics. This project will investigate simple nonlinear models for the dynamics of the inner ear and identify important phenomena associated with it.

View all Available Projects

Publications

Journal Article

Conference Publication

  • Sun, Yong , Qian, Zhen, Shi, Lei , Meehan, Paul A., Ding, Shichao and Daniel, J.T. William (2016). Numerical Investigation of the Permanent Longitudinal Strain and Web-warping in Chain-die Formed AHSS Variable Width Sections. In: Technical Program. The 1st International Conference on Automobile Steel (ICAS2016) The 3rd International Conference on High Manganese Steels ( HMnS2016), At Chengdu, Chengdu, Peoples Republic of China, (581-585). 16-18 November 2016.

  • Meehan, Paul (2015). "Investigation of the effect of humidity, temperature and friction modifiers on railway rolling noise". In: 10th Contact Mechanics Conference, Colorado Spings, Colorado, United States, (). 30th August - 3rd September, 2015.

  • Thang, Christopher Y. and Meehan, Paul A. (2015). Computational investigation of adaptive deep brain stimulation. In: Harald Loose, Ana Fred, Hugo Gamboa and Dirk Elias, Proceedings of the International Conference on Bio-inspired Systems and Signal Processing. BIOSIGNALS 2015 8th International Conference on Bio-Inspired Systems and Signal Processing, Lisbon, Portugal, (66-75). 12-15 January, 2015. doi:10.5220/0005212400660075

  • Liu, Sheng, Tian, Ye, Meehan, Paul A. and Daniel, W. J. T. (2015). Modelling of track wear damage due to changes in friction conditions: a comparison between AC and DC electric drive locomotives. In: 10th International Conference on Contact Mechanics (CM2015). International Conference on Contact Mechanics, Colorado Springs, CO, United States, (338-345). 31 August - 3 September 2015. doi:10.1016/j.wear.2016.05.023

  • Meehan, P. A., Batten, R. D. and Bellette, P. A. (2015). The effect of non-uniform train speed distribution on rail corrugation growth in cornering. In: 10th International Conference on Contact Mechanics (CM2015). International Conference on Contact Mechanics, Colorado Springs, CO, United States, (). 31 August - 3 September 2015.

  • Liu, Zhaobing, Li, Yanle, Daniel, Bill and Meehan, Paul (2014). An analytical model for deformation path design in multistage incremental sheet forming process. In: Zone-Ching Lin, You-Min Huang and Liang-Kuang Che, Advances in Materials and Processing Technologies XVI. 16th International Conference on Advances in Materialsand Processing Technologies (AMPT 2013), Taipei, Taiwan, (245-252). 22-26 September 2013. doi:10.4028/www.scientific.net/AMR.939.245

  • Daniel, William J. T., Li, Yanle, Liu, Zhaobing and Meehan, Paul A. (2014). Analytical prediction of strains and forming forces in incremental forming. In: 8th Australasian Congress on Applied Mechanics as part of Engineers Australia Convention 2014. Proceedings. ACAM 8: 8th Australasian Congress on Applied Mechanics, Melbourne, VIC, Australia, (924-932). 23-26 November, 2014.

  • Meehan, P. A. and Liu, S. (2014). Exact solutions to the free vibration of stepped beams under axial load. In: 8th Australasian Congress on Applied Mechanics as part of Engineers Australia Convention 2014. Proceedings. ACAM 8: 8th Australasian Congress on Applied Mechanics, Melbourne, VIC, Australia, (463-471). 23-26 November, 2014.

  • Li, Yanle, Liu, Zhaobing, Lu, Haibo, Daniel, W. J. T. (Bill) and Paul, Paul A. (2014). Experimental study and efficient prediction on forming forces in incremental sheet forming. In: Advances in Materials and Processing Technologies XVI. 16th International Conference on Advances in Materialsand Processing Technologies (AMPT 2013), Taipei, Taiwan, (313-321). 22-26 September 2013. doi:10.4028/www.scientific.net/AMR.939.313

  • Tian, Y., Daniel, W. J. T., Liu, S. and Meehan, P. A. (2014). Fuzzy logic creep control for a 2D locomotive dynamic model under transient wheel-rail contact conditions. In: C. A. Brebbia, N. Tomii, P. Tzieropoulos and J. M. Mera, Computers in Railways XIV: Railway Engineering Design and Optimization. 14th International Conference on Railway Engineering Design and Optimization, COMPRAIL 2014, Rome, (885-896). June 24, 2014-June 26, 2014. doi:10.2495/CR140741

  • Liu, Zhaobing, Li, Yanle, Daniel, Bill and Meehan, Paul (2014). Taguchi optimization of process parameters for forming time in incremental sheet forming process. In: Advances in Materials and Processing Technologies XV. 15th International Conference on Advances in Materials and Processing Technologies, AMPT 2012, Wollongong, NSW, Australia, (137-143). 23 September 2012. doi:10.4028/www.scientific.net/MSF.773-774.137

  • Tian, Ye, Daniel, W. J. T. (Bill), Liu, Sheng and Meehan, Paul A. (2013). Dynamic tractional behaviour analysis and control for a DC locomotive. In: WCRR 2013: 10th World Congress of Railway Research, Sydney, NSW, Australia, (). 25-28 November, 2013.

  • Liu, Xiaogang and Meehan Paul A. (2013). The effect of friction modifiers on wheel squeal and friction-creep curves in lateral direction. In: WCRR 2013: 10th World Congress of Railway Research, Sydney, NSW, Australia, (). 25-28 November, 2013.

  • Liu, Xiaogang and Meehan, Paul (2013). The modeling of wheel squeal in the time domain and its validation. In: Proceedings of Meetings on Acoustics - ICA 2013. 21st International Congress on Acoustics, ICA 2013 - 165th Meeting of the Acoustical Society of America, Montreal, QC United States, (). 2-7 June 2013. doi:10.1121/1.4793582

  • Weegink, K. J., Varghese, J. J., Bellette, P. A., Coyne, T., Silburn, P. A. and Meehan, P. A. (2012). An efficient stochastic based model for simulating microelectrode recordings of the deep brain. In: Proceedings of Biosignals 2012, International Conference on Bio-Inspired Systems and Signal Processing. 5th International Joint Conference on Biomedical Engineering Systems and Technologies (BIOSTEC), Vilamoura, Portugal, (76-84). 1-4 February 2012.

  • Liu, X., Meehan, P. A. and Bellette, P. A. (2012). Investigation of the effect of relative humidity on lateral force in rolling contact and curve squeal. In: 9th International Conference on Contact Mechanics and Wear of Rail/Wheel Systems (CM2012), Chengdu, China, (). 27-30 August 2012.

  • Weegink, K. J., Varghese, J, Bellette, P., Coyne, T., Silburn, P. and Meehan, P. (2012). Simulating micro electrode recordings from deep brain surgery for applications in a clinical framework. In: Abstracts of WFN XIX World Congress on Parkinson's Disease and Related Disorders. WFN XIX World Congress on Parkinson's Disease and Related Disorders, Shanghai, China, (S225-S225). 11–14 December 2011. doi:10.1016/S1353-8020(11)70957-9

  • Farjoo, Mohammadaili, Daniel, William and Meehan, Paul A. (2012). Stress intensity factors around a 3D squat form crack on a rail surface laid on an elastic foundation. In: Proceedings: 9th International Conference on Contact Mechanics and Wear of Rail/Wheel Systems (CM 2012). 9th International Conference on Contact Mechanics and Wear of Rail/Wheel Systems (CM 2012), Chengdu, China, (146-159). 27-30 August 2012.

  • Batten, R. D., Bellette, P. A. and Meehan, P. A. (2011). A method of predicting variable speed rail corrugation growth using standard statistical moments. In: David J. Mee and Ian Hillock, Proceedings of Acoustics 2011. Acoustics 2011, Gold Coast, QLD, Australia, (1-6). 2-4 November 2011.

  • Liu, X., Bellette, P., Milne, C. and Meehan, P. A. (2011). Investigation about the effect of angle of attack and relative humidity on wheel squeal. In: David J. Mee and Ian Hillock, Acoustics 2011: Breaking New Ground: Proceedings of the Annual Conference of the Australian Acoustical Society. Acoustics 2011: Breaking New Ground, Gold Coast, Australia, (1-7). 2-4 November 2011.

  • Meehan, Paul A., Bellette, Paul, Xiaogang Liu, Cameron Milne and Anderson, D. (2011). Investigation of Wheel Squeal Characteristics using a Rolling Contact Two Disk Test Rig. In: Proceedings of the 9th World Conference on Railway Research. 9th World Conference on Railway Research, Lille, France, (). 22-26th May 2011.

  • Meehan, Paul A., Bellette, Paul, Bradley, Andrew P., Castner, Joanna E., Chenery, Helen J., Copland, David A., John Varghese, Coyne, T. and Peter Silburn (2011). Investigation of the non-markovity spectrum as a cognitive processing measure of deep brain microelectrode recordings. In: F. Babiloni, A. Fred, J. Filipe and H. Gamboa, Proceedings of the International Conference on Bio-Inspired Systems and Signal Processing. BIOSIGNALS 2011 - 4th International Conference on Bio-Inspired Systems and Signal Processing, Rome, Italy, (144-150). 26-29 January 2011.

  • Jiang, S., Meehan, P. A., Thompson, D. J. and Jones, C. J. C. (2011). Railway rolling noise prediction under European conditions. In: David J. Mee and Ian Hillock, Acoustics 2011: Breaking New Ground: Proceedings of the Annual Conference of the Australian Acoustical Society. Acoustics 2011: Breaking New Ground, Gold Coast, Australia, (1-8). 2-4 November 2011.

  • Varghese, J. J., Weegink, K. J., Bellette, P. A., Coyne, T., Silburn, P. A. and Meehan, P. A. (2011). Theoretical and experimental analysis of the Non Markov Parameter to detect low frequency synchronisation in time series analysis. In: Nigel Lovell, Proceedings of the 33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society. 33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBS), Boston, MA, United States, (). 30 August - 3 September 2011.

  • Liu, Zhaobing, Meehan, Paul and Bellette, Paul (2011). Thickness distribution and forming strategy analysis for two point Incremental Forming with a male die. In: Prasad Yarlagadda, Yun-Hae Kim, Zhijiu Ai and Xiaodong Zhang, Materials processing technology : selected, peer reviewed papers from the 2011 International Conference on Materials and Products Manufacturing Technology (ICMPMT 2011). 2011 International Conference on Materials and Products Manufacturing Technology, ICMPMT 2011, Chengdu, China, (452-455). 28-30 October 2011. doi:10.4028/www.scientific.net/AMR.337.452

  • Valente, Carlos, Daniel, William J. T. and Meehan, Paul A. (2010). Metallurgical study of rail squats. In: David Bond and John Dring, CORE 2010 Conference on Railway Engineering Proceedings: Rail - rejuvenation and renaissance. CORE 2010 Conference on Railway Engineering, Wellington, New Zealand, (346-353). 12-14 December 2010.

  • Meehan, P. A., Bellette, P., Daniel, W. J. T., Horwood, R., Petticrew, N. and Orange, N. (2010). Model-based estimation of rail profile based on axlebox accelerometers. In: CORE2010 [electronic resource] : rail - rejuvenation & renaissance : Conference on Railway Engineering : Conference Proceedings. CORE 2010: Rail, Rejuvenation and Renaissance, Wellingon, New Zealand, (222-229). 12-14 December 2010.

  • Meehan, P. A., Bellette, P. A., Jones, C. and Anderson, D. (2010). Probabilistic Prediction of Wheel Squeal under Field Humidity Variation. In: Proceedings of 20th International Congress on Acoustics, ICA 2010. 20th International Congress on Acoustics, Sydney, Australia, (561-576). 23-27 August 2010.

  • Batten, R.D., Bellette, P.A., Meehan, P.A., Horwood, R.J. and Daniel, W.J.T. (2009). Field and theoretical investigation of the mechanism of corrugation wavelength fixation under speed variation. In: Proceedings of CM2009. 8th International Conference on contact Mechanics and Wear of Rail/Wheel Systems, Firenze, Italy, (295-304). 15-18 September, 2009.

  • Batten, R.D., Bellette, P.A. and Meehan, P.A. (2009). Investigation into the effect of asymmetric train speed distribution on rail corrugation growth in cornering. In: Anthony C. Zander and Carl Q. Howard, Acoustics 2009: Research to Consulting : Proceedings of the annual conference of the Australian Acoustical Society. Acoustics 2009: Research to Consulting, Adelaide, Australia, (1-7). 23-25 November 2009.

  • Vuong, T.T., Meehan, P.A., Eadie, D.T., Oldknow, K., Elvidge, D., Bellette, P.A. and Daniel, W.J.T. (2009). Investigation of a transitional wear model for wear prediction and control in rolling contact. In: Proceedings of CM2009. 8th International Conference on contact Mechanics and Wear of Rail/Wheel Systems, Firenze, Italy, (277-286). 15-18 September, 2009.

  • Bellette, P.A., Meehan, P.A. and Daniel, W.J.T. (2009). Tangent track corrugation model validation with a two disk test rig. In: Proceedings of CM2009. 8th International Conference on contact Mechanics and Wear of Rail/Wheel Systems, Firenze, Italy, (11-20). 15-18 September, 2009.

  • Meehan, P.A. and Bellette, P. (2008). Chaotic signal analysis of Parkinson's Disease STN Brain Signals. In: CHASOS 2008 Chaotic Modeling and Simulation International Conference. CHAOS 2008, Greece, (232-241). 3-6 June 2008.

  • Meehan, P. A., Bellette, P., Daniel, W. J. T. and Horwood, R. (2007). A case study on the effect of speed variation on the growth of wear-type rail corrugation. In: 14th International Congress on Sound Vibration. ICSV14, Cairns, Australia, (182-189). 9-12 July 2007.

  • Galakhar, A. S., Meehan, P. A., Daniel, W. J. T. and Ding, S. C. (2007). A method of approximate tool wear analysis in cold roll forming. In: Martin Veidt, Faris Albermani, Bill Daniel, John Griffiths, Doug Hargreaves, Ross McAree, Paul Meehan and Andy Tan, Proceedings of the 5th Australasian Congress on Applied Mechanics (ACAM 2007). 5th Australasian Congress on Applied Mechanics (ACAM 2007), Brisbane, Australia, (703-708). 10-12 December, 2007.

  • Bellette, P., Meehan, P.A. and Daniel, W.J.T. (2007). A model of the wear due to the rolling contact of a wheel over a general rail profile. In: 14th International Congress on Sound Vibration. ICSV14, Cairns, Australia, (1-8). 9-12 July 2007.

  • Daniel, W. J. T. and Meehan, P. A. (2007). Implicit finite element study of non-steady effects in cold roll forming. In: Martin Veidt, Faris Albermani, Bill Daniel, John Griffiths, Doug Hargreaves, Ross McAree, Paul Meehan and Andy Tan, Proceedings of the 5th Australasian Congress on Applied Mechanics (ACAM 2007). 5th Australasian Congress on Applied Mechanics (ACAM 2007), Brisbane, Australia, (576-581). 10-12 December, 2007.

  • McInnes, Charles H. and Meehan, Paul A. (2007). Optimising slew torque on a mining dragline via a four degree of freedom dynamic model. In: Martin Veidt, Faris Albermani, Bill Daniel, John Griffiths, Doug Hargreaves, Ross McAree, Paul Meehan and Andy Tan, Proceedings of the 5th Australasian Congress on Applied Mechanics (ACAM 2007). 5th Australasian Congress on Applied Mechanics (ACAM 2007), Brisbane, Australia, (402-407). 10-12 December, 2007.

  • Batten, R. D., Meehan, P. A., Daniel, W. J. T., Bellette, P. A. and Horwood, R. J. (2007). The effects of passing speed distribution on rail corrugation growth rate. In: Martin Veidt, Faris Albermani, Bill Daniel, John Griffiths, Doug Hargreaves, Ross McAree, Paul Meehan and Andy Tan, Proceedings of the 5th Australasian Congress on Applied Mechanics (ACAM 2007). 5th Australasian Congress on Applied Mechanics (ACAM 2007), Brisbane, Australia, (265-270). 10-12 December, 2007.

  • Vuong, T. T. and Meehan, P. A. (2007). Wear transitions in a wear coefficient model. In: Martin Veidt, Faris Albermani, Bill Daniel, John Griffiths, Doug Hargreaves, Ross McAree, Paul Meehan and Andy Tan, Proceedings of the 5th Australasian Congress on Applied Mechanics (ACAM 2007). 5th Australasian Congress on Applied Mechanics (ACAM 2007), Brisbane, Australia, (171-176). 10-12 December, 2007.

  • Ding, S., Daniel, W. J. T. and Meehan, P. A. (2006). A new relaxation method for roll forming problems. In: J. A. C. Martins, H. C. Rodrigues, J. A. C. Ambrosio and et al., III European Conference on Computional Mechanics: Book of Abstracts. III European Conference on Computional Mechanics Solids, Structures and Coupled Problems in Engineering, Lisbon, Portugal, (536-536). 5-8 June 2006. doi:10.1007/1-4020-5370-3_536

  • Daniel, W J T, Horwood, R J, Meehan, P A and N, N (2006). Analysis of rail corrugation in cornering. In: Drs Peter Mutton and Bill Thomas, 7th International Conference on Contract Mechanics and Wear of Rail/Wheel Systems. 7th International Conference on Contract Mechanics and Wear of Rail/Wheel Systems, Brisbane, Australia, (159-167). 25-27 September 2006.

  • Meehan, P A and Daniel, W J T (2006). Effects of wheel passing frequency on wear-type corrugations. In: Drs Peter Mutton and Bill Thomas, 7th International Conference on Contract Mechanics and Wear of Rail/Wheel Systems. 7th International Conference on Contract Mechanics and Wear of Rail/Wheel Systems, Brisbane, Australia, (189-198). 25-27 September 2006.

  • Bellette, P. A., Meehan, P A and Daniel, W J T (2006). Investigation into the effect of speed variation on the growth of wear-type rail corrugation. In: Terrance Mc Minn, First Australasian Acoustical Societies' Conference. First Australasian Acoustical Societies' Conference, Christchurch, New Zealand, (227-234). 20-22 November 2006.

  • Daniel, W J T, Horwood, R J, Meehan, P A and Wheatley, N (2006). Wear-type rail corrugation prediction: Field study. In: Conference on Railway Engineering CORE 2006. Conference on Railway Engineering CORE 2006, 30 April - 03 May 2006, (513-519). Melbourne, Victoria, Australia.

  • McInnes, C. H. and Meehan, P. A. (2005). Reducing dragline fatigue via improved operation feedback. In: H Gurgenci, M Hood, P Lever and P Knights, 2005 Australian Mining Technology Conference - New Technologies to Produce More with Less. Proceedings of the 2005 Australian Mining Technology Conference, Freemantle, Western Australia, (189-196). 27-28 September 2005.

  • Song, N. and Meehan, P. A. (2004). A closed form analytical solution for a simplified wear-type rail corrugation model. In: D Mee, R Hooker and I Hillock, Proceedings of Acoustics 2004. Proceedings of Acoustics 2004, Gold Coast, Australia, (227-232). 3-5 November 2004.

  • Meehan, P. A. and Daniel, W.J.T. (2004). Wear-type rail corrugation prediction: passage time delay effects. In: D Mee, R Hooker and I Hillock, Proceedings of Acoustics 2004. Proceedings of Acoustics 2004, Gold Coast, Australia, (11-16). 3-5 November 2004.

  • Daniel, W.J.T. and Meehan, P. A. (2003). Issues in dynamic modelling to predict growth of rail corrugations. In: Joseph Mathew, Proceedings of the 10th Asia-Pacific Vibration Conference - Volume 1. Asia-Pacific Vibration Conference, Gold Coast, Australia, (81-86). 12-14 November 2003.

  • Starkoff, P. E. and Meehan, P. A. (2003). Modelling and Suppression of Attitude Instabilities for a Spacecraft in Earth Orbit. In: David J. Mee, Proceedings of the 10th Australian International Aerospace Congress, Brisbane, July, 2003 ; and 14th National Space Engineering Symposium 2003. Century of Aerospace Brisbane 2003, Brisbane, Queensland, Australia, (). 29 July - 1 August 2003.

  • Meehan, P. A., Daniel, W.J.T. and Campey, T. J. (2003). Wear-type rail corrugation predication and prevention. In: Proceedings 6th International Conference in Mechanics and Wear of Rail/wheel Systems (CM2003). Proceedings 6th International Conference in Mechanics and Wear of Rail/wheel Systems (CM2003), Sweden, (445-454). 10-13 June 2003.

  • Guan, Zhiqiang, Gurgenci, Hal and Meehan, Paul (2002). Duty monitoring and duty-based maintenance on mining equipment. In: Proceedings of the 3rd Asia Pacific Conference on Systems Integrity and Maintenance. 3rd Asia Pacific Conference on Systems Integrity and Maintenae, Hilton Cairns, Australia, (115-120). 25-27 September, 2002.

  • Reid, A. W., Gurgenci, H. and Meehan, P. A. (2002). External force resolution from a dynamic, coupled mechanical-structural-electrical system: Application in Longwall Mining. In: Pemberton, M. Turner, I. Jacobs, P. and ., The fifth Biennial Engineering Mathematics and Applications Conference. The fifth Biennial Engineering Mathematics and Applications Ce, Queensland University of Technology, Brisbane, (169-173). 29/09/02 - 02/10/02.

  • Gurgenci, H., McAree, P.R., Meehan, P. A. and Guan, Z. (2002). How to manage machine duty to sustain high production rates. In: Clifford and L., CMMI Congress 2002 - International Codes, Technology and Sustainability for the Minerals Industry. CMMI Congress 2002, Cairns, Queensland, Australia, (135-140). 27-28 May, 2002.

Edited Outputs

  • Proceedings of the Fifth Australasian Congress on Applied Mechanics (2007) . Edited by Martin Veidt, Faris Albermani, Bill Daniel, John Griffiths, Doug Hargreaves, Ross McAree, Paul Meehan and Andy Tan. Fifth Australasian Congress on Applied Mechanics (ACAM 2007), 10–12 December, 2007, Brisbane, Australia.

Other Outputs

Grants (Administered at UQ)

PhD and MPhil Supervision

Current Supervision

  • Doctor Philosophy — Principal Advisor

  • Doctor Philosophy — Principal Advisor

  • Doctor Philosophy — Principal Advisor

    Other advisors:

  • Doctor Philosophy — Principal Advisor

  • Doctor Philosophy — Principal Advisor

  • Doctor Philosophy — Principal Advisor

  • Doctor Philosophy — Associate Advisor

    Other advisors:

Completed Supervision

Possible Research Projects

Note for students: The possible research projects listed on this page may not be comprehensive or up to date. Always feel free to contact the staff for more information, and also with your own research ideas.

  • Present project will explore the use of recently developed datamining techniques for use as software sensors. A software sensor can predict critical output variables from process inputs and other measured variables without incurring measurement delay and maintenance costs. Such prediction is necessary for implementation of precise feedback and control in many processes. The major objective of the present project will be to develop and test advanced duty detection models based on the dutymeter concept implemented by the Smart Machines Group on draglines. The project will involve the implementation of advanced datamining techniques such as wavelet based methods and or neural networks in order to classify and identify operator practices causing higher levels of duty on the machine.

  • The purpose of this project is to design and build physical models to demonstrate nonlinear phenomena in dynamics.

    In particular, it is firstly aimed to develop one or more simple but demonstration sized models for demonstrating stability and conservation concepts in 3D rigid body motion. Possible models include the tippetop (a spinning top that inverts itself), the rattleback stone (a rigid body of unidirectional spin) and Chalygin's ball (a spherical but inertially asymmetric spinning ball).

    Secondly, it is aimed to develop a simple demonstration model for showing chaotic instabilities in a spacecraft, dragline or another rotating multibody system.

    The design parameters will be based upon theoretical predictions of phenomena in available literature. The thesis will be expected to contain a thorough review of this literature and theoretical calculations predicting the phenomena in the physical models.

  • The inner ear is an extremely sophisticated instrument for converting mechanical vibrational energy to neural energy that our brain interprets as sound. The operation of this system has been shown to rely on highly nonlinear dynamics. This project will investigate simple nonlinear models for the dynamics of the inner ear and identify important phenomena associated with it.

  • Typical spacecraft have a lifetime determined almost solely dependent on the amount of fuel (used during attitude manoeuvres) remaining in its tanks. The existing system of estimating the fuel remaining onboard is via recording a theoretical value of the amount of fuel used in each manoeuvre and summing this over the spacecraft's lifetime. This process allows for the propagation of significant errors in the estimate of the fuel remaining at the end of life.

    This project will continue previous research that has proposed that has proposed a method by which a better estimate of fuel remaining may be obtained. The aim of this project is to further develop and tune analytical and numerical models of the spacecraft fuel slosh behaviour in order to accurately predict the amount of fuel remaining. The project has major interest from Cable & Wireless Optus and the satellite communications industry in general.

  • A number of investigations of spacecraft stability have been performed in the recent past, motivated by the observation of abnormalities occurring in the attitude dynamics of satellites. Attitude instabilities are highly detrimental to the high pointing accuracy required by communication satellites for antennas to provide the desired coverage. These observed instabilities have usually been found to arise the inherent nonlinearity of the system dynamics.

    This project will investigate the occurrence and suppression of attitude instabilities in tethered spacecraft via analytical and numerical techniques. Tethered spacecraft systems are used to reduce fuel consumption and increase mission efficiency and safety. It is expected that this project will involve a significant amount of dynamic modelling, analysis, simulation and application of novel design/control techniques.

  • A widespread and apparently increasing phenomenon which has persisted in the railway industry for more than a century is the problem of rail corrugation. Rail corrugation is characterised by the formation of periodic light and dark bands along the tracks and is highly undesirable as it induces severe vibrations in the bogie. Much research has been performed in this area over the past decade however a cure remains elusive. The phenomenon involves the interaction between the dynamics of the vehicle (bogie), the contact mechanics occurring in the wheel/track interface and wear mechanics.

    This thesis involves the advancement and testing of existing numerical models for rail corrugation via testrig and field measurement data.

  • The occurrence of nonlinear instabilities is investigated in the swing motion of a dragline bucket during normal operation cycles. A simplified representative model of the dragline is developed in the form of a fundamental rotating multibody system with energy dissipation.An analytical predictive criterion for the onset of chaotic instability has been obtained using Melnikov’s method in terms of critical system parameters. These chaotic instabilities could introduce irregularities into the motion of the dragline system rendering the system difficult to control by the operator and/or would have undesirable affects on dragline productivity and fatigue lifetime. The sufficient analytical criterion for the onset of chaotic instability is shown to be a useful predictor of the phenomenon under steady and unsteady slewing conditions via comparisons with numerical results. It is aimed to validate these preliminary results by the development of a more realistic numerical model and/or experimental model.

  • A relatively new cross-disciplinary field of research is the identification and modelling of dynamic phenomena in biological systems. In particular, evidence of chaotic dynamics has been identified in the heart and brain and has surprisingly been associated with normal healthy functioning. In fact recent evidence suggests that abnormalities such as heart attacks and epileptic seizure are associated with linear periodic behaviour. It is of interest that pacemakers, in general, are designed to provide periodic behaviour, however, a better performance may be achieved if they can be designed to mimic the natural chaotic behaviour of a natural heart.

    This project will involve an analytical and experimental investigation of nonlinear phenomena in the human cardiovascular system. In particular, a nonlinear controller will be developed and investigated using analytical, numerical and existing experimental models of the human cardiovascular system for use as a pacemaker.

  • This project involves the analysis and design of modifications to a robust flying shear. The shear is integral to the continuous cold roll forming process utilised by Smorgon Steel Tube Mills a local (and international) manufacturer of tube products. At present Austrlia is one of the world leading producers of these products.