Professor Carl Howard

• Appointments

  Date	Position	Institution name
  2018 - ongoing	Professor	The University of Adelaide
  2015 - 2017	Associate Professor	The University of Adelaide
  2006 - 2014	Lecturer	The University of Adelaide
  2003 - 2006	Post-Doctoral Researcher	The University of Adelaide
  2001 - 2003	Research Engineer	United Technologies Research Center
  2000 - 2001	Senior Consultant	Colin Gordon and Associates
  1999 - 1999	Senior FEA Consultant	Worley
  1994 - 1995	Part time consultant	Bassett
  1992 - 1994	Project Engineer	Vipac Engineers and Scientists

• Awards and Achievements

  Date	Type	Title	Institution Name	Country	Amount
  2019	Distinction	Fellow of the Australian Acoustical Society	Australian Acoustical Society	Australia	-
  2018	Award	Australian Acoustical Society Best Paper Prize	Australian Acoustical Society	Australia	-
  2018	Award	Institution of Mechanical Engineers 2018 Photographer of the Year	Institution of Mechanical Engineers	United Kingdom	-
  2015	Award	Australian Acoustical Society Best Paper Prize	Australian Acoustical Society	Australia	-

• Education

  Date	Institution name	Country	Title
  	The University of Adelaide	Australia	PhD
  	The University of Adelaide	Australia	BE(Hons) Mechanical

• Certifications

  Date	Title	Institution name	Country
  —	Commercial Pilot License Aeroplane	Civil Aviation Safety Authority	Australia
  —	Remote Pilot License	Civil Aviation Safety Authority	Australia

• Research Interests

  Acoustics Acoustics and Acoustical Devices Acoustics and Noise Control Aerospace Engineering Biomechanics Computational Fluid Dynamics Computer Gaming and Animation Control Systems Distributed Computing Dynamical Systems in Applications Dynamics, Vibration and Vibration Control Education Marine Engineering Mechanical Engineering Nanomaterials Orthopaedics Signal Processing Virtual Reality and Related Simulation Wastewater Treatment Processes

• Journals

  Year	Citation
  2023	Leav, O., Cazzolato, B., Howard, C., & Mabrouk, B. (2023). Steady-state sound propagation through hot exhaust jets in cooler cross-flow: A computational study. The Journal of the Acoustical Society of America, 154(1), 217-231. DOI Scopus1
  2021	Larizza, F., Howard, C. Q., Grainger, S., & Wang, W. (2021). A nonlinear dynamic vibration model of a defective bearing: the importance of modelling the angle of the leading and trailing edges of a defect. Structural Health Monitoring, 20(5), 2604-2625. DOI Scopus14 WoS14
  2021	Lyons, R., & Howard, C. (2021). Improvements to the Sliding Discrete Fourier Transform Algorithm. IEEE: Signal Processing Magazine, 38(4), 119-127. DOI Scopus26 WoS18
  2021	Leav, O., Cazzolato, B., & Howard, C. (2021). Sound propagation through elevated, heated jets in cooler cross-flow: An experimental study. Journal of the Acoustical Society of America, 150(1), 82-93. DOI Scopus6 WoS2 Europe PMC1
  2020	Larizza, F., Howard, C. Q., & Grainger, S. (2020). Defect size estimation in rolling element bearings with angled leading and trailing edges. Structural Health Monitoring, 20(3), 1102-1116. DOI Scopus17 WoS17
  2020	Farajpour, A., Howard, C. Q., & Robertson, W. S. P. (2020). On size-dependent mechanics of nanoplates. International Journal of Engineering Science, 156, 103368-1-103368-19. DOI Scopus58 WoS54
  2018	Larizza, F., Moazen Ahmadi, A., Howard, C. Q., & Grainger, S. (2018). The importance of bearing stiffness and load when estimating the size of a defect in a rolling element bearing. Structural Health Monitoring, 18(5-6), 1527-1542. DOI Scopus12 WoS11
  2018	Ayub, M., Zander, A. C., Huang, D. M., Howard, C. Q., & Cazzolato, B. S. (2018). Molecular dynamics simulations of acoustic absorption by a carbon nanotube. Physics of Fluids, 30(6), 066101-1-066101-15. DOI Scopus18 WoS16
  2018	Singh, S., Howard, C., Hansen, C., & Kopke, U. (2018). Analytical validation of an explicit finite element model of a rolling element bearing with a localised line spall. Journal of Sound and Vibration, 416, 94-110. DOI Scopus57 WoS43
  2018	Ayub, M., Zander, A. C., Huang, D. M., Cazzolato, B. S., & Howard, C. Q. (2018). Molecular dynamics simulation of classical sound absorption in a monatomic gas. Journal of Sound and Vibration, 421, 319-333. DOI Scopus7 WoS6
  2017	Ayub, M., Zander, A., Howard, C., Cazzolato, B., Huang, D., Shanov, V., & Alvarez, N. (2017). Normal incidence acoustic absorption characteristics of a carbon nanotube forest. Applied Acoustics, 127, 223-239. DOI Scopus27 WoS24
  2017	Ayub, M., Zander, A. C., Huang, D. M., Howard, C. Q., & Cazzolato, B. S. (2017). Molecular dynamics simulations of sound field characteristics of wave propagation in a monatomic gas. Physics of Fluids.
  2016	Moazen Ahmadi, A., Howard, C., & Petersen, D. (2016). The path of rolling elements in defective bearings: Observations, analysis and methods to estimate spall size. Journal of Sound and Vibration, 366, 277-292. DOI Scopus85 WoS73
  2016	Moazen-ahmadi, A., & Howard, C. (2016). A defect size estimation method based on operational speed and path of rolling elements in defective bearings. Journal of Sound and Vibration, 385, 138-148. DOI Scopus52 WoS44
  2015	Ayub, M., Zander, A., Howard, C., Huang, D., & Cazzolato, B. (2015). Molecular dynamics simulations of sound wave propagation in a gas and thermo-acoustic effects on a carbon nanotube. Journal of Computational Acoustics, 23(4), 1540012-1-1540012-18. DOI Scopus6 WoS5
  2015	Petersen, D., Howard, C., Sawalhi, N., Moazen Ahmadi, A., & Singh, S. (2015). Analysis of bearing stiffness variations, contact forces and vibrations in radially loaded double row rolling element bearings with raceway defects. Mechanical Systems and Signal Processing, 50-51, 139-160. DOI Scopus227 WoS179
  2015	Moazen Ahmadi, A., Petersen, D., & Howard, C. (2015). A nonlinear dynamic vibration model of defective bearings - the importance of modelling the finite size of rolling elements. Mechanical Systems and Signal Processing, 52-53(1), 309-326. DOI Scopus203 WoS174
  2015	Petersen, D., Howard, C., & Prime, Z. (2015). Varying stiffness and load distributions in defective ball bearings: analytical formulation and application to defect size estimation. Journal of Sound and Vibration, 337, 284-300. DOI Scopus130 WoS107
  2015	Singh, S., Howard, C., & Hansen, C. (2015). An extensive review of vibration modelling of rolling element bearings with localised and extended defects. Journal of Sound and Vibration, 357, 300-330. DOI Scopus143 WoS114
  2014	Howard, C. (2014). Educators in Acoustics. ACOUSTICS AUSTRALIA, 42(1), 59-60.
  2014	Singh, S., Koepke, U., Howard, C., & Petersen, D. (2014). Analyses of contact forces and vibration response for a defective rolling element bearing using an explicit dynamics finite element model. Journal of Sound and Vibration, 333(21), 5356-5377. DOI Scopus220 WoS178
  2014	Rodriguez Molares, A., Howard, C., & Zander, A. (2014). Determination of biomass concentration by measurement of ultrasonic attenuation. Applied Acoustics, 81, 26-30. DOI Scopus13 WoS12
  2014	Howard, C., & Craig, R. (2014). An adaptive quarter-wave tube that uses the sliding-Goertzel algorithm for estimation of phase. Applied Acoustics, 78, 92-97. DOI Scopus14 WoS10
  2014	Howard, C., & Craig, R. (2014). Noise reduction using a quarter wave tube with different orifice geometries. Applied Acoustics, 76, 180-186. DOI Scopus35 WoS22
  2014	Rodriguez-Molares, A., Dickson, S., Hobson, P., Howard, C., Zander, A., & Burch, M. (2014). Quantification of the ultrasound induced sedimentation of Microcystis aeruginosa. Ultrasonics Sonochemistry, 21(4), 1299-1304. DOI Scopus51 WoS43 Europe PMC17
  2013	Sandow, M., Fisher, T., Howard, C., & Papas, S. (2013). Unifying model of carpal mechanics based on computatinally derived isometric constraints and rules-based motion - the stable central column theory. Hand Surgery, 39(4), 353-363. DOI Scopus40 WoS37 Europe PMC23
  2013	Howard, C. (2013). The corrected expressions for the four-pole transmission matrix for a duct with a linear temperature gradient and an exponential temperature profile. Open Journal of Acoustics, 3(3), 62-66. DOI
  2012	Howard, C. (2012). A sliding Goertzel algorithm for adaptive passive neutralizers. Journal of Sound and Vibration, 331(9), 1985-1993. DOI Scopus9 WoS7
  2011	Howard, C., Maddern, A., & Privopoulos, E. (2011). Acoustic characteristics for effective ambulance sirens. Acoustics Australia, 39(2), 43-53. Scopus22 WoS9
  2009	Zoontjens, L., Howard, C., Zander, A., & Cazzolato, B. (2009). Numerical study of flow and energy fields in thermoacoustic couples of non-zero thickness. International Journal of Thermal Sciences, 48(4), 733-746. DOI Scopus37 WoS33
  2008	Zoontjens, L., Howard, C., Zander, A., & Cazzolato, B. (2008). Numerical comparison of thermoacoustic couples with modified stack plate edges. International Journal of Heat and Mass Transfer, 51(19-20), 4829-4840. DOI Scopus18 WoS17
  2008	Howard, C., & Hansen, C. (2008). Development of a transducer for active vibration isolation using translational and rotational power transmission as a cost function. Journal of Intelligent Material Systems and Structures, 19(10), 1229-1241. DOI Scopus4 WoS3
  2008	Howard, C. (2008). Transmission loss of a panel with an array of tuned vibration absorbers. Acoustics Australia, 36(3), 98-103. Scopus9 WoS6
  2007	Howard, C. (2007). Modal mass of clamped beams and clamped plates. Journal of Sound and Vibration, 301(1-2), 410-414. DOI Scopus13 WoS9
  2006	Howard, C., & Hansen, C. (2006). Active vibration isolation experiments using translational and rotational power transmission as a cost function. Journal of the Acoustical Society of America, 120(4), 2004-2016. DOI Scopus7 WoS6
  2005	Howard, C., Morgans, R., Hansen, C., & Zander, A. (2005). A tool for the optimisation of vibro-acoustic systems using a parallel genetic algorithm and a distributed computing network. Noise Control Engineering Journal, 53(6), 256-267. DOI Scopus4 WoS3
  2005	Howard, C., Hansen, C., & Zander, A. (2005). A review of current airborne ultrasound exposure limits. Journal of Occupational Health and Safety, 21(3), 253-257. Scopus42
  2005	Howard, C. (2005). An inexpensive DIY impact hammer for vibration analysis of buildings. Acoustics Australia, 33(1), 13-18. Scopus4
  2005	Howard, C., Hansen, C., & Zander, A. (2005). Vibro-acoustic noise control treatments for payload bays of launch vehicles: Discrete to fuzzy solutions. Applied Acoustics, 66(11), 1235-1261. DOI Scopus32 WoS24
  2005	Cazzolato, B., Petersen, C., Howard, C., & Zander, A. (2005). Active control of energy density in a one-dimensional waveguide: a cautionary note. Journal of the Acoustical Society of America, 117(6), 3377-3380. DOI Scopus9 WoS3 Europe PMC1
  2003	Howard, C., & Hansen, C. (2003). Vibration analysis of waffle floors. Computers & Structures, 81(1), 15-26. DOI Scopus19 WoS13
  2000	Howard, C., Snyder, S., & Hansen, C. (2000). Calculation of vibratory power transmission for use in active vibration control. Journal of Sound and Vibration, 233(4), 573-585. DOI Scopus28 WoS22
  2000	Howard, C., Cazzolato, B., & Hansen, C. (2000). Exhaust stack silencer design using finite element analysis. Noise Control Engineering Journal, 48(4), 113-120. DOI Scopus29 WoS23
  2000	Howard, C. Q., & Hansen, C. H. (2000). Erratum: “Power transmission from a vibrating body to a circular cylindrical shell through passive and active isolators” [J. Acoust. Soc. Am. 101, 1479–1491 (1997)]. Journal of the Acoustical Society of America, 108(5), 2443-2444. DOI
  1999	Howard, C., & Hansen, C. (1999). Finite Element Analysis of Active Vibration Isolation Using Vibrational Power as a Cost Function. International Journal of Acoustics and Vibration, 4(1), 23-36.
  1997	Howard, C., & Hansen, C. (1997). Active Isolation of a Vibrating Mass. Acoustics Australia, 25(2), 65-67. Scopus1
  1997	Howard, C., Hansen, C., & Pan, J. (1997). Power transmission from a vibrating body to a circular cylindrical shell through passive and active isolators. Journal of the Acoustical Society of America, 101(3), 1479-1491. DOI Scopus41 WoS22

• Books

  Year	Citation
  2023	Bies, D. A., Hansen, C. H., Howard, C. Q., & Hansen, K. L. (2023). Engineering Noise Control: Sixth Edition (6th ed.). CRC Press. DOI Scopus21
  2017	Bies, D., Hansen, C., & Howard, C. (2017). Engineering Noise Control (5th ed.). Boca Raton, Florida, USA: CRC Press.
  2015	Howard, C. Q., & Cazzolato, B. S. (2015). Acoustic Analyses Using Matlab® and Ansys® (1 ed.). United States: Taylor & Francis.
  2014	Howard, C. Q., & Cazzolato, B. S. (2014). Acoustic Analyses Using: MATLAB® and ANSYS®. CRC Press. DOI Scopus46

• Book Chapters

  Year	Citation
  2009	Howard, C. (2009). Practical numerical acoustics. In D. Bies, & C. Hansen (Eds.), Engineering Noise Control (4 ed., pp. 617-657). United States and Canada: Spon Press.

• Conference Papers

  Year	Citation
  2025	Howard, C. (2025). n:m Coherence for determining the causality of a transfer function with a non-linear frequency relationship. In Proceedings of the Annual Conference of the Australian Acoustical Society. Joondalup, Western Australia, Australia: Australian Acoustical Society, WA Division.
  2024	Cazzolato, B., Leav, O., & Howard, C. (2024). Open-cycle gas turbines: Predicting and controlling far-field noise. In Proceedings of Acoustics 2024: Acoustics in the Sun. Gold Coast Queensland: Australian Acoustical Society.
  2023	O’Callaghan-Reay, H., Howard, C. Q., Craig, R., Hunter, M., Moore, S., Forrest, J., & Leav, O. (2023). Acoustic transmission loss of a fluid-filled rubber hose. In Proceedings of Meetings on Acoustics, 2023 Vol. 52 (pp. 065005-1-065005-13). Online: Acoustical Society of America. DOI
  2023	Cazzolato, B., Leav, O., & Howard, C. (2023). ENVIRONMENTAL NOISE FROM OPEN-CYCLE GAS TURBINES. In Proceedings of the International Congress on Sound and Vibration. Online: Society of Acoustics.
  2022	Cazzolato, B., Leav, O., & Howard, C. (2022). Sound directivity from a 250kW gas turbine exhaust system. In N. Kessissoglou, & M. Buret (Eds.), Proceedings of Acoustics Wollongong : Making Waves (2021) (pp. 1-8). Toowong DC QLD, Australia: Australian Acoustical Society.
  2022	Howard, C. Q. (2022). Application of Improved Sliding DFT Algorithm for Non-Integer k. In Proceedings of Acoustics Wollongong : Making Waves (2021) (pp. 1-8). Toowong DC QLD, Australia: Australian Acoustical Society.
  2020	Farajpour Ouderji, A., Howard, C., & Robertson, W. (2020). Stress-driven nonlocal integral elasticity for nanostructures. In 6th International Conference on Mechanics of Composites. University of Porto, Portugal.
  2019	Larizza, F., Howard, C., Grainger, S., & Wang, W. (2019). Detection and location of defects in rolling element bearing using acoustic emission. In Proceedings of the 18th Australian International Aerospace Congress (AIAC18) (pp. 843-848). Melbourne, Australia: Engineers Australia, Royal Aeronautical Society.
  2018	Howard, C., Sergiienko, N., & Gallasch, G. (2018). Monitoring the age of vehicle shock absorbers. In Proceedings of the International Conference on Science and Innovation for Land Power 2018 (ICSILP 2018) (pp. 1-4). Adelaide Convention Centre, Adelaide, South Australia: DST Group.
  2018	Zander, A., Ayub, M., Cazzolato, B., Howard, C., Nine, M. J., Losic, D., . . . Bennett, H. (2018). Acoustics at the Nanoscale. In Proceedings of the Annual Conference of the Australian Acoustical Society (AAS2018): Acoustics 2018: Hear to Listen (pp. 51-68). Adelaide, Australia: Australian Acoustical Society.
  2018	Zander, A., Ayub, M., Cazzolato, B., Howard, C., Nine, M. J., Losic, D., . . . Bennett, H. (2018). Acoustics at the Nanoscale. In Proceedings of the Annual Conference of the Australian Acoustical Society (AAS2018): Acoustics 2018: Hear to Listen (pp. 51-68). Adelaide, Australia: Australian Acoustical Society.
  2018	Leav, O., Cazzolato, B., & Howard, C. (2018). Experimental analysis of sound directivity from sound propagation through non-isothermal, turbulent exhaust jets in cross-flow. In Proceedings of the Australian Acoustical Society Annual Conference (pp. 208-217). online: Australian Acoustical Society.
  2018	Howard, C. Q., Hodgson, J., & Koh, L. (2018). Heart rate measurement of nesting birds using a microphone in a plastic egg. In Proceedings of the Annual Conference of the Australian Acoustical Society (AAS2018): Acoustics 2018: Hear to Listen (pp. 453-462). Adelaide, South Australia: Australian Acoustical Society. Scopus1
  2018	Larizza, F., Howard, C. Q., Grainger, S. D., & Wang, W. (2018). Modelling and defect size estimation of a defective bearing. In Proceedings of the Annual Conference of the Australian Acoustical Society (AAS2018): Acoustics 2018: Hear to Listen (pp. 463-471). Adelaide, South Australia: Australian Acoustical Society.
  2017	Leav, O., Cazzolato, B., & Howard, C. (2017). A computational analysis of sound directivity from sound propagation through non-isothermal, turbulent exhaust jets in cross-flow. In 24th International Congress on Sound and Vibration, ICSV 2017 (pp. 1-8). Online: IIAV. Scopus4
  2017	Larizza, F., Howard, C., Grainger, S., & Wang, W. (2017). Modelling of defective bearings - the importance of the leading and trailing edge angle of a defect. In 17th Australian International Aerospace Congress (AIAC) (pp. 741-748). Melbourne, Australia: Engineers Australia, Royal Aeronautical Society.
  2016	Ayub, M., Zander, A., Howard, C., Cazzolato, B., Huang, D., Alvarez, N., & Shanov, V. (2016). Acoustic absorption behaviour of a tall carbon nanotube forest. In I. Hillock, & D. Mee (Eds.), Proceedings of Acoustics 2016 Vol. 1 (pp. 1-10). Brisbane, Qld: The Australian Acoustical Society. Scopus3
  2016	Howard, C., Leclercq, D., & Hunter, M. (2016). Active exhaust silencer using an oscillating butterfly valve. In Proceedings of the 23rd International Congress on Sound and Vibration: From Ancient to Modern Acoustics, 2016 (pp. 1-8). Athens, Greece: International Institute of Acoustics and Vibration.
  2015	Ahmadi, A., & Howard, C. (2015). Observation and analysis of the vibration and displacement signature of defective bearings due to various speeds and loads. In INTER-NOISE 2015 - 44th International Congress and Exposition on Noise Control Engineering (pp. 1-12). online: European Acoustics Association.
  2015	Leav, O., Cazzolato, B., & Howard, C. (2015). Directivity analysis of sound in turbulent exhaust jets with laminar cross-flow: A numerical study. In Acoustics 2015 Hunter Valley (pp. 1-10). online: Australian Acoustical Society. Scopus5
  2015	Griscti, H., McPeake, J., Scott, B., & Howard, C. (2015). Design and analysis of a thermoacoustic heat engine. In Acoustics 2015 Hunter Valley (pp. 1-10). online: Australian Acoustical Society.
  2015	Hunter, M., Leclercq, D., & Howard, C. (2015). Mechanical design of flow control of the exhaust noise from a V6 petrol engine. In Acoustics 2015 Hunter Valley (pp. 1-9). online: Australian Acoustical Society. Scopus1
  2015	Cotton, B., Damin, L., Silvestri, A., & Howard, C. (2015). Exhaust silencer using water injection. In Acoustics 2015 Hunter Valley (pp. 1-10). online: Australian Acoustical Society. Scopus3
  2014	Ayub, M., Zander, A., Howard, C., Cazzolato, B., Shanov, V., Alvarez, N., & Huang, D. (2014). Acoustic absorption behaviour of carbon nanotube arrays. In J. Davy, C. Don, T. McMinn, L. Dowsett, N. Broner, & M. Burgess (Eds.), Proceedings of 43rd International Congress on Noise Control Engineering (pp. 1-10). Melbourne: The Australian Acoustical Society. Scopus11
  2014	Leclercq, D., Howard, C., Hobson, P., Dickson, S., Zander, A., & Burch, M. (2014). Controlling cyanobacteria with ultrasound. In INTERNOISE 2014 - 43rd International Congress on Noise Control Engineering: Improving the World Through Noise Control (pp. 10 pages). online: Australian Acoustical Society. Scopus9
  2014	Leclercq, D., & Howard, C. (2014). Active flow control of the exhaust noise from internal combustion piston engine. In INTERNOISE 2014 - 43rd International Congress on Noise Control Engineering: Improving the World Through Noise Control (pp. 10 pages). online: Australian Acoustical Society. Scopus1
  2014	Petersen, D., & Howard, C. (2014). Bearing defect size estimation for extended raceway defects. In INTERNOISE 2014 - 43rd International Congress on Noise Control Engineering: Improving the World Through Noise Control (pp. 1-10). online: Australian Acoustical Society. Scopus3
  2014	Singh, S., Howard, C., Hansen, C., & Köpke, U. (2014). Numerical noise generation in modelled bearing vibration signals. In INTERNOISE 2014 - 43rd International Congress on Noise Control Engineering: Improving the World Through Noise Control (pp. 1-10). online: Australian Acoustical Society. Scopus4
  2014	Doherty, K., Larizza, F., Tripodi, M., & Howard, C. (2014). Adaptive quarter wavelength tube tuned by varying air Temperature. In INTERNOISE 2014 - 43rd International Congress on Noise Control Engineering: Improving the World Through Noise Control (pp. 1-10). online: Australian Acoustical Society.
  2014	Moazenahmadi, A., Petersen, D., Howard, C., & Sawalhi, N. (2014). Defect size estimation and analysis of the path of rolling elements in defective bearings with respect to the operational speed. In INTERNOISE 2014 - 43rd International Congress on Noise Control Engineering: Improving the World Through Noise Control (pp. 1-10). online: Australian Acoustical Society. Scopus10
  2013	Tetlow, M., Howard, C., & Green, J. (2013). Integrated submarine performance simulation. In Proceedings of the 20th International Congress on Modelling and Simulation, MODSIM 2013 (pp. 1075-1081). Australia: The Modelling and Simulation Society of Aust & NZ.
  2013	Howard, C. (2013). Transmission matrix model of a quarter-wave-tube with gas temperature gradients. In Terrance McMinn (Ed.), Proceedings of Acoustics 2013: Science Technology and Amenity. Annual conference of the Australian Acoustical Society (pp. 1-6). CD ROM: Australian Acoustical Society.
  2013	Petersen, C., & Howard, C. (2013). Simulation and design of a microphone array for beamforming on a moving acoustic source. In Terrance McMinn (Ed.), Proceedings of Acoustics 2013: Science Technology and Amenity. Annual conference of the Australian Acoustical Society (pp. 1-8). CD ROM: Australian Acoustical Society.
  2013	Singh, S., Kopke, U., Howard, C., Petersen, C., & Rennison, D. (2013). Impact generating mechanisms in damaged rolling element bearings. In Terrance McMinn (Ed.), Proceedings of Acoustics 2013: Science Technology and Amenity. Annual conference of the Australian Acoustical Society (pp. 1-7). CD ROM: Australian Acoustical Society. Scopus3
  2013	Moazen Ahmadi, A., Petersen, C., & Howard, C. (2013). A nonlinear dynamic model of the vibration response of defective rolling element bearings. In Terrance McMinn (Ed.), Proceedings of Acoustics 2013: Science Technology and Amenity. Annual conference of the Australian Acoustical Society (pp. 1-7). CD ROM: Australian Acoustical Society. Scopus8
  2013	Ayub, M., Zander, A., Howard, C., Cazzolato, B., & Huang, D. (2013). A review of MD simulations of acoustic absorption mechanisms at the nanoscale. In Terrance McMinn (Ed.), Proceedings of Acoustics 2013: Science Technology and Amenity. Annual conference of the Australian Acoustical Society (pp. 1-8). CD ROM: Australian Acoustical Society. Scopus2
  2013	Howard, C. (2013). Transmission matrix model of a quarter-wave- Tube with gas temperature gradients. In Annual Conference of the Australian Acoustical Society 2013 Acoustics 2013 Science Technology and Amenity (pp. 120-125).
  2012	Groocock, D., Menzies, B., & Howard, C. (2012). Extending submarine equipment beyond its service life. In Rina Royal Institution of Naval Architects International Maritime Conference 2012 Pacific 2012 (pp. 607-616).
  2012	Craig, R., & Howard, C. (2012). Development of an adaptive quarter-wave tube attached to a large diesel engine. In Proceedings of Acoustics 2012 (pp. 1-7). CDROM: The Australian Acoustical Society. Scopus4
  2012	Howard, C. Q., & Craig, R. A. (2012). Variation in acoustic performance of an adaptive quarter wave tube with orifice geometries of side-branches in a duct with flowing gas. In Australian Acoustical Society Conference 2012: Acoustics 2012: Acoustics, Development, and the Environment (pp. 119-124). Fremantle, Western Australia: Australian Acoustical Society.
  2011	Howard, C. (2011). Recent developments in submarine vibration isolation and noise control. In Proceedings of the Submarine Science, Technology and Engineering Conference 2011 (pp. 283-288). Australia: Engineers Australia.
  2011	Maddern, A., Privopoulos, E., & Howard, C. (2011). Emergency vehicle auditory warning signals: physical and psychoacoustic considerations. In Proceedings of ACOUSTICS 2011: Breaking new ground (pp. 1-5). CD: Australian Acoustical Society. Scopus8
  2011	Ayub, M., Zander, A., Howard, C., & Cazzolato, B. (2011). A review of acoustic absorption mechanisms of nanoscopic fibres. In Proceedings of ACOUSTICS 2011: Breaking new ground (pp. 139-146). CD: Australian Acoustical Society. Scopus5
  2011	Howard, C. (2011). A new cost function algorithm for adaptive-passive vibration and acoustic resonators. In Proceedings of ACOUSTICS 2011: Breaking new ground (pp. 1-6). CD: Australian Acoustical Society.
  2011	Howard, C., & Craig, R. (2011). Adaptive-passive quarter-wave tube resonator silencer. In Proceedings of ACOUSTICS 2011: Breaking new ground (pp. 1-6). CD: Australian Acoustical Society. Scopus6
  2010	Grande, V., Andreasson, T., & Howard, C. (2010). Liquid oxygen recharge system for submarines. In International Maritime Conference 2010 Pacific 2010 (pp. 201-210).
  2009	Gardner, D., & Howard, C. (2009). Waste-heat-driven thermoacoustic engine and refrigerator. In Proceedings of Acoustics 2009 (pp. 1-4). CD: AAS. Scopus11
  2009	Kuik, S., Howard, C., Hansen, C., & Zander, A. (2009). Tuned vibration absorbers for control of noise radiated by a panel. In Proceedings of Acoustics 2009 (pp. 1-5). CD: AAS. Scopus3
  2009	Howard, C. (2009). Review of adaptive tuned vibration neutralisers. In Proceedings of Acoustics 2009 (pp. 1-6). CD: AAS. Scopus5
  2008	Singh, S., Hansen, C., & Howard, C. (2008). A detailed tutorial for evaluating in-duct net acoustic power transmission in a circular duct with an attached cylindrical Helmholtz resonator using transfer matrix method. In Proceedings of the Acoustics 2008 (pp. 1). Australia: AAS. Scopus2
  2008	Howard, C. (2008). Transmission loss of a panel with an array of tuned vibration absorbers. In Acoustics 2008: acoustics and sustainabilit (pp. proceedings of the Annual Conference of the Australian Acoustical Society, 24-26 November, 2008, Geelong, Victoria, Australia). Geelong, Victoria: Australian Acoustical Society.
  2007	Hansen, C., Qiu, X., Petersen, C., & Howard, C. (2007). Active noise and vibration control system design considerations. In Janusz Kowal (Ed.), Proceedings of the 8th Conference on Active Noise and Vibration Control Methods (pp. 14-31). Poland: Jaroslaw A Jagla.
  2007	Howard, C. (2007). Theoretical and experimental results of the transmission loss of a plate with discrete masses attached. In Nicole Kessissoglou (Ed.), Proceedings of ICSV14 Vol. 1 (pp. 1-8). CDROM: AAS. Scopus6
  2007	Puri, R., Morrey, D., Durodola, J., Morgans, R., & Howard, C. (2007). A comparison of structural-acoustic coupled reduced order models ({ROMS}): Modal coupling and implicit moment matching via Arnoldi. In Nicole Kessissoglou (Ed.), Proceedings of ICSV14 (pp. 1-8). CDROM: AAS.
  2007	Morgans, R., Howard, C., Zander, A., Hansen, C., & Murphy, D. (2007). Derivative free optimisation in engineering acoustics. In Nicole Kessissoglou (Ed.), Proceedings of ICSV14 Vol. 1 (pp. 1-9). CDROM: AAS. Scopus1
  2007	Hansen, C., Qiu, X., Barrault, G., Howard, C., Petersen, C., & Singh, S. (2007). Optimisation of active and semi-active noise and vibration control systems. In Nicole Kessissoglou (Ed.), Proceedings of ICSV14 Vol. 5 (pp. 1-30). CDROM: AAS. Scopus6
  2007	Puri, R. S., Morrey, D., Durodola, J. F., Morgans, R. C., & Howard, C. Q. (2007). A comparison of structural-acoustic coupled reduced order models (ROMS): Modal coupling and implicit moment matching via Arnoldi. In 14th International Congress on Sound and Vibration 2007 Icsv 2007 Vol. 5 (pp. 4318-4325). Scopus2
  2006	Howard, C., & Leclercq, D. (2006). Feedback noise control of low frequency noise in a station-wagon using a field programmable analog array (FPAA). In M. Kidner, & C. Howard (Eds.), Proceedings of ACTIVE 2006 (pp. CDROM1-CDROM12). Australia: Australian Acoustical Society.
  2006	Singh, S., Howard, C., & Hansen, C. (2006). Tuning a semi-active Helmholtz resonator. In M. Kidner, & C. Howard (Eds.), ACTIVE 2006 (pp. CDROM1-CDROM12). Australia: Australian Acoustical Society.
  2006	Howard, C., & Kidner, M. (2006). Experimental validation of a model for the transmission loss of a plate with an array of lumped masses. In Terrance McMinn (Ed.), Proceedings of Noise of Progress (pp. CDROM169-CDROM177). New Zealand: New Zealand Acoustical Society. Scopus13
  2006	Howard, C. (2006). Impedance correction for a branched duct in a thermoacoustic air-conditioner. In Terrance McMinn (Ed.), Proceedings of Noise of Progress (pp. CDROM429-CDROM433). New Zealand: New Zealand Acoustical society.
  2006	Zoontjens, L., Howard, C., Zander, A., & Cazzolato, B. (2006). Modelling and optimisation of acoustic inertance segments for thermoacoustic devices. In Terrance McMinn (Ed.), Proceedings First Australasian Acoustical Societies' Conference : Acoustics 2006 : Noise of Progress (pp. 435-441). Christchurch, New Zealand: New Zealand Acoustical Society. Scopus15
  2006	Singh, S., Hansen, C., & Howard, C. (2006). The elusive cost function for tuning adaptive Helmholtz resonators. In Terrance McMinn (Ed.), Proceedings of Noise of Progress (pp. CDROM75-CDROM82). New Zealand: New Zealand Acoustical Society. Scopus5
  2005	Kidner, M., Howard, C., & Gardner, B. (2005). Improvements in panel insertion loss by addition of random masses embedded in a poro-elastic layer: Modelling procedures. In ISCV12: Proceedings of the 12th International congress of sound and vibration Vol. 6 (pp. 5193-5200). The International Institute of Acoustics and Vibration. Scopus3
  2005	Howard, C., Hansen, C., & Zander, A. (2005). Review of current recommendations for airborne ultrasound exposure limits. In T. McMinn (Ed.), Proceedings of the annual conference of the Australian Acoustical Society: 'Acoustics in a changing environment' (pp. 341-343). CD ROM: Australian Acoustical Society (Western Australian division).
  2005	Howard, C., Hansen, C., & Zander, A. (2005). Noise reduction of a rocket payload fairing using tuned vibration absorbers with translational and rotational DOFs. In T. McMinn (Ed.), Proceedings of the annual conference of the Australian Acoustical Society: 'Acoustics in a changing environment' (pp. 165-171). CD ROM: Australian Acoustical Society (Western Australian division). Scopus6
  2005	Howard, C., Hansen, C., & Zander, A. (2005). Optimisation of design and location of acoustic and vibration absorbers using a distributed computing network. In T. McMinn (Ed.), Proceedings of the annual conference of the Australian Acoustical Society: 'Acoustics in a changing environment' (pp. 173-178). Abbey Beach Resort, Busselton, Western Australia: Australian Acoustical Society (Western Australian division).
  2005	Howard, C., & Hansen, C. (2005). Six-axis vibrational power transducer for active vibration isolation. In T. McMinn (Ed.), Proceedings of the annual conference of the Australian Acoustical Society: 'Acoustics in a changing environment' (pp. 85-92). CD ROM: Australian Acoustical Society (Western Australian division). Scopus2
  2005	Zoontjens, L., Howard, C., Zander, A., & Cazzolato, B. (2005). Development of a low-cost loudspeaker-driven thermoacoustic refrigerator. In T. McMinn (Ed.), Proceedings of the annual conference of the Australian Acoustical Society: 'Acoustics in a changing environment' (pp. 1-7). CD ROM: Australian Acoustical Society (Western Australian division). Scopus1
  2005	Zoontjens, L., Howard, C., Zander, A., & Cazzolato, B. (2005). Feasibility study of an automotive thermoacoustic refrigerator. In T. McMinn (Ed.), Proceedings of the annual conference of the Australian Acoustical Society: 'Acoustics in a changing environment' (pp. 1-8). CD ROM: Australian Acoustical Society (Western Australian division). Scopus5
  2005	Bammann, T., Howard, C., & Cazzolato, B. (2005). Review of flow-through design in thermoacoustic refrigeration. In T. McMinn (Ed.), Proceedings of the annual conference of the Australian Acoustical Society: 'Acoustics in a changing environment' (pp. 337-341). CD ROM: Australian Acoustical Society (Western Australian division). Scopus4
  2005	Howard, C., Hansen, C., & Zander, A. (2005). Multi-variable optimisation of a vibro-acoustic system using a distributed computing network. In ICSV12: Proceedings of the 12th International congress on sound and vibration Vol. 6 (pp. 1-7). Auburn, USA: The International Institute of Acoustics and Vibration. Scopus1
  2004	Howard, C. (2004). Experimental results of synchrophasing two axial fans in a duct. In Proceedings of ACTIVE 2004: The 2004 international symposium on active control of sound and vibration (pp. 8 pages). Williamsburg, Virginia USA: Institute of Sound and Vibration.
  2000	Howard, C., & Hansen, C. (2000). Active vibration isolation using force and velocity as cost functions - experimental results. In G. Guidati, H. Hunt, & H. Heller (Eds.), Proceedings of the 7th International Congress on Sound and Vibration (pp. 435-442). Munich, Germany: International Institute of Sound and Vibration.

• Conference Items

  Year	Citation
  2023	Howard, C., O'Callaghan-Reay, H., Moore, S., Forrest, J., Leav, O., Craig, R., & Hunter, M. (2023). Measurement of the transmission loss of a rubber hose. Poster session presented at the meeting of Abstracts of the Acoustics Conference (2023) as published in The Journal of the Acoustical Society of America. Sydney, NSW, Australia: The Journal of the Acoustical Society of America. DOI
  2023	Howard, C., Craig, R., & Forrest, J. (2023). Acoustics of a pressurized air-filled pipe open at one-end at varying depths. Poster session presented at the meeting of Abstracts of the Acoustics Conference (2023) as published in The Journal of the Acoustical Society of America. Sydney, New South Wales, Australia: The Journal of the Acoustical Society of America. DOI

• Patents

  Year	Citation
  2018	Zander, A., Nine, M., Ayub, M., Losic, D., Cazzolato, B. S., Howard, C., & Huang, D. (2018). WO/2018/157208, Acoustic graphene-containing compositions/materials and methods of formation. Switzerland.
  2018	Zander, A., Nine, M., Ayub, M., Losic, D., Cazzolato, B. S., Howard, C., & Huang, D. (2018). WO/2018/157208, Acoustic graphene-containing compositions/materials and methods of formation. Switzerland.
  2018	Cazzolato, B. S., Howard, C., & Leav, O. (2018). 2018903441, AN EXHAUST GAS ASSEMBLY. Australia.
  2018	Cazzolato, B. S., Howard, C., & Leav, O. (2018). 2018903441, AN EXHAUST GAS ASSEMBLY. Australia.
  2017	Zander, A. C., Nine, M. J., Ayub, M., Losic, D., Cazzolato, B. S., Howard, C. Q., & Huang, D. M. (2017). 2017900697, Acoustic Graphene-containing Compositions/Materials and Methods of Formation. Australia.
  2013	Howard, C., Stuffel, A., Hardin, L., & Alves, G. (2013). US8381895 B2, Device to reduce noise transmission through the gap between escalator steps. United States of America.

• Internet Publications

  Year	Citation
  2018	Ayub, M. (2018). Acoustics At The Nanoscale. Science Trends.
  2018	Ayub, M. (2018). Acoustics At The Nanoscale. Science Trends.

• Filesets

  Year	Citation
  -	Howard, C., & Hansen, C. (n.d.). Engineering Noise Control, 5th Edition (2017). DOI
  -	Howard, C. (n.d.). Matlab code for determining instantaneous heart rate from audio signals of nesting birds. DOI

Courses

• Engineering Acoustics (MECH ENG 4115, 7027)
• Dynamics and Control 2 (MECH ENG 3028, 7047)
• Finite Element Analysis of Structures (MECH ENG 4118, 7059)

Awards

• ECMS Teaching Award 2015
• School of Mechanical Engineering Teaching Award 2015

• Current Higher Degree by Research Supervision (University of Adelaide)

  Date	Role	Research Topic	Program	Degree Type	Student Load	Student Name
  2023	Co-Supervisor	Defining the mechanical rules of the wrist through computational modelling	Doctor of Philosophy	Doctorate	Full Time	Mr Zheng Xu Cheng

• Past Higher Degree by Research Supervision (University of Adelaide)

  Date	Role	Research Topic	Program	Degree Type	Student Load	Student Name
  2019 - 2021	Principal Supervisor	Nonlinear scale-dependent deformation behaviour of beam and plate structures	Doctor of Philosophy	Doctorate	Full Time	Mr Ali Farajpour Ouderji
  2015 - 2020	Principal Supervisor	Estimation of bearing fault size using vibration and acoustic condition monitoring	Doctor of Philosophy	Doctorate	Full Time	Frank Larizza
  2015 - 2020	Co-Supervisor	Mechanics of Sound Propagation Through Hot Exhaust Jets Gross Flow	Doctor of Philosophy	Doctorate	Full Time	Orddom Leav
  2011 - 2016	Co-Supervisor	Novel Acoustic Absorbers	Doctor of Philosophy	Doctorate	Full Time	Mr Md Ayub
  2011 - 2016	Principal Supervisor	Defect Detection of Rolling Element Bearings using Vibro-Acoustic Signatures	Doctor of Philosophy	Doctorate	Full Time	Mr Alireza Moazen Ahmadi
  2009 - 2014	Principal Supervisor	Development Of A Wheel-Rail Dynamics Simulation Model For Predicting Acoustic Radiation	Doctor of Philosophy	Doctorate	Full Time	Mr Sarabjeet Singh
  2004 - 2006	Co-Supervisor	Development of an adaptive Helmholtz resonator	Master of Engineering Science	Master	Full Time	Mr Sarabjeet Singh
  2004 - 2008	Co-Supervisor	Investigation of Thermoacoustics for Automotive Applications	Doctor of Philosophy	Doctorate	Full Time	Mr Luke Zoontjens

• Memberships

  Date	Role	Membership	Country
  2017 - ongoing	Member	Audio Engineering Society	United States
  1997 - ongoing	Member	Acoustical Society of America	United States
  1995 - ongoing	Member	Australian Acoustical Society	Australia

• Position: Professor
• Phone: 83133469
• Email: carl.howard@adelaide.edu.au
• Fax: 83134367
• Campus: North Terrace
• Building: Engineering South, floor 2
• Org Unit: Mechanical Engineering