Dr. John Kennedy
Assistant Professor, Mechanical, Manuf & Biomedical Eng
Biography
Dr. John Kennedy is Assistant Professor in Vibrations, Acoustics and Dynamics at Trinity College Dublin. His research career focuses aero-acoustic problems and the development of novel noise control technologies. His research has applied advanced correlation and spectral analysis techniques to experimental data of turbulence (LDV, X-hotwire and high speed PIV) and included advanced beamforming and partial coherence techniques for source localisation using microphone array data. He current research focuses on the how the latest additive manufacturing technologies can be used to produce novel metamaterials for the control of enviornmental noise, including optimised design strategies using deep learning. He leads a research group of 3 PhD students and 2 Postdoctoral researchers and is co-lead in the Fluids, Vibrations and Acoustics research group.
He has also engaged in interdisciplinary research with psychologists from the University of Bath and the University of Aberystwyth into the influence of noise exposure on human performance in transport applications including hazard detection, risk perception and annoyance.
He has secured over EUR 2 million in research funding, including over EUR 1 million focusing on the design and additive manufacture of metamaterials. He works closely with Irish SME partners in the commercialisation of acoustic metamaterials including in the H2020 SME instrument project TANDEM. He has been the scientific coordinator and lead technical manager of the FP7 Clean Sky projects WENEMOR, ALLEGRA and ARTIC and PI on the H2020 project AERIALIST. His responsibilities on these projects included the conduct of Preliminary and Critical Design Reviews, test planning and supervision of the wind tunnel test campaigns.
Dr. Kennedy has published 74 peer-reviewed journal articles and conference publications. He has been a member of the scientific committee of the 21st and 23rd Workshops of the Aeroacoustics Specialists Committee of the Council of European Aerospace Societies. He was a member of the Scientific Committee of the 45th and 51st International JVE (Journal of Vibroengineering) Conferences. He is a session chair at the Internoise 2022 and ISMA 2022 conference. He is also Irish coordinator for the industrially focused institute of Acoustics' Diploma in acoustics and noise control. His work in transport aero-acoustics has led to press releases by the Acoustical Society of America and the American Institute of Physics.
Publications and Further Research Outputs
Peer-Reviewed Publications
McGinn, A., Kennedy, J., Development of a Comprehensive UAV Noise Evaluation Platform, QUIET DRONES Second International e-Symposiumon UAV/UAS Noise, e-Symposiumon, 27 - 30 June, 2022
Einicke, K., Kennedy, J., The impact of changing fleet makeup on airline noise emission, 51st International Congress and Exposition on Noise Control, Glasgow, 21- 24 Aug, 2022
L. Dowling and J. Kennedy and D. Trimble, Effect of a modified energy density equation to achieve a more uniform energy input during LPBF for improved repeatability, Journal of Manufacturing Processes, 77, 2022, p607--615
Ogun, O., Kennedy, J. , Noise Attenuation Through Optimised Acoustic Metamaterials: A Low Form Factor Design for Targeted Noise Reduction, THERMINIC, Dublin, 28 - 30 Sept, 2022
Byrne, S., Kennedy, J., The influence of helmets on sound localisation in motorcyclists, 51st International Congress and Exposition on Noise Control, Glasgow, 21 - 24 Aug, 2022
Agnieszka Ciochon, John Kennedy, Raphael Leiba, Lara Flanagan, The Impact of Additive Manufacturing on the Acoustic Performance of Novel Porous Materials, 28th AIAA/CEAS Aeroacoustics Conference, Southampton, UK, 14 June - 17 June 20, 2022
Harun, S., Einicke, K., Kennedy, J., Byrne, S., Noise mitigation of UAV operations through a Complex Networks approach, 51st International Congress and Exposition on Noise Control, Glasgow, 21 - 24 Aug, 2022
Rice, H., Flanagan, L., Kennedy, J., Wright, T.,, An acoustic absorption system incorporating fluid-structure interaction, 30th ISMA conference on Noise and Vibration Engineering, Leuven, 12 - 14 Sept, 2022
Muhammad, Kennedy, J., Additively manufactured composite metastructure for broadband vibration and noise control applications, 30th ISMA conference on Noise and Vibration Engineering, Leuven, 12 - 14 Sept, 2022
Kai Cussen, Simone Garruccio and John Kennedy, UAV Noise Emission - A Combined Experimental and Numerical Assessment, Acoustics, 4, (2), 2022, p297 - 312
Ciochon, A., Kennedy, J., Culleton, M.,, Evaluation of surface roughness effects on additively manufactured acoustic materials, 30th ISMA conference on Noise and Vibration Engineering, Leuven, Belgium, 12 - 14 Sept 2022, 2022
Daniel Deery and Lara Flanagan and Gordon O'Brien and Henry J. Rice and John Kennedy, Efficient Modelling of Acoustic Metamaterials for the Performance Enhancement of an Automotive Silencer, Acoustics, 4, (2), 2022, p329--344
Daragh O'Connor and John Kennedy, An evaluation of 3D printing for the manufacture of a binaural recording device, Applied Acoustics, 171, 2021, p107610
John Kennedy and Daniel Deery, Performance enhancement of an automotive silencer using acoustic metamaterial baffles, Vibroengineering PROCEDIA, 37, 2021, p66--71
Mark Anderson, John Kennedy, Naomi Harte, Low Resource Species Agnostic Bird Activity Detection, 2021 IEEE Workshop on Signal Processing Systems (SiPS), 2021, pp34-39
John Kennedy and Simone Garruccio and Kai Cussen, Modelling and mitigation of drone noise, Vibroengineering PROCEDIA, 37, 2021, p60--65
Patrick N. Okolo, Kun Zhao, John Kennedy, Chigbo Mgbemena, Mkpamdi Eke and Gareth J. Bennett, Two-Dimensional Simplification of Complex Three-Dimensional Wire Mesh Screens, Journal of Aerospace Engineering, 34, (6), 2021, p1 - 13
Roberto Merino-Martínez, John Kennedy, Gareth J.Bennett, Experimental study of realistic low-noise technologies applied to a full-scale nose landing gear, Aerospace Science and Technology, 113, 2021
Dowling L., Kennedy J., O'Shaughnessy S., Trimble D., A review of critical repeatability and reproducibility issues in powder bed fusion, Materials and Design, 186, 2020
Roberto Merino-Martínez, Eleonora Neri, Mirjam Snellen, John Kennedy, Dick G. Simons and Gareth J. Bennett, Multi-Approach Study of Nose Landing Gear Noise, Journal of Aircraft , 57, (3), 2020, p517 - 533
Tomasz G Zieli"ski, Kamil C Opiela, Piotr Paw"owski, Nicolas Dauchez, Thomas Boutin, John Kennedy, Daniel Trimble, Henry Rice, Bart Van Damme, Gwenael Hannema, Rafa" Wróbel, Seok Kim, Shahrzad Ghaffari Mosanenzadeh, Nicholas X Fang, Jieun Yang, Baltazar Briere de La Hosseraye, Maarten CJ Hornikx, Edouard Salze, Marie-Annick Galland, René Boonen, Augusto Carvalho de Sousa, Elke Deckers, Mathieu Gaborit, Jean-Philippe Groby, Reproducibility of sound-absorbing periodic porous materials using additive manufacturing technologies: Round robin study, Additive Manufacturing, 36, 2020
H.Mao, R.Rumpler, M.Gaborit, P.Göransson, J.Kennedy, D.O'Connor, D.Trimble, H.Rice, Twist, tilt and stretch: From isometric Kelvin cells to anisotropic cellular materials, Materials Design, 193(2020)108855, 2020, p1 - 15
H.J.Rice J.Kennedy P.Göransson L.Dowling D.Trimble, Design of a Kelvin cell acoustic metamaterial, Journal of Sound and Vibration, 472, (115167), 2020
John Kennedy, Lara Flanagan, Luke Dowling, Gareth J. Bennett, Henry Rice, and Daniel Trimble, The Influence of Additive Manufacturing Processes on the Performance of a Periodic Acoustic Metamaterial, International Journal of Polymer Science, 2019, 2019, p1-11
Faulkner Jon Paul, Cassidy Matthew, Murphy Enda, Kennedy John, Rice Henry, Validation of Acceleration and Deceleration in proximity to Junctions under CNOSSOS-EU , Irish Transport Research Network Conference , 2019, 2019
Jennings, Simon; Kennedy, John, Detection and Evaluation of Amplitude Modulation From a Wind Energy Development, Ireland, Acta Acustica united with Acustica, Volume 105, (Number 6), 2019, p1042 - 1052
Kun Zhao, Patrick Okolo, Eleonora Neri, Peng Chen, John Kennedy, Gareth J. Bennett, Noise reduction technologies for aircraft landing gear-A bibliographic review, Progress in Aerospace Sciences, 112, 2019, p100589
L. Dowling, D. Heaphy, D. Trimble, J. Kennedy, Repeatability in additive manufacturing for metamaterials, 21st Workshop of the Aeroacoustics Specialists Committee of the CEAS - New materials for applications in aeroacoustics, Rome, Italy, 2019
Patrick N Okolo, Kun Zhao, John Kennedy, Gareth J Bennett, Numerical assessment of flow control capabilities of three dimensional woven wire mesh screens, European Journal of Mechanics - B/Fluids, 76, 2019, p259-271
L. Flanagan, H. Rice, J. Kennedy, Sub-wavelength acoustic liner via "metamaterials", 21st Workshop of the Aeroacoustics Specialists Committee of the CEAS - New materials for applications in aeroacoustics, Rome, Italy, 2019
Kennedy, J., L., Flanagan, Dowling, L., Rice, H., Trimble, D., , The influence of additive manufacturing processes on the performance of a periodic acoustic metamaterial, International Journal of Polymer Science, Volume 2019, (Article ID 7029143), 2019
Kennedy John, Dowling Luke, Flanagan Lara, Rice Henry, Trimble Daniel, The influence of additive manufacturing strategies on the performance of acoustic metamaterials , 9th EASN International Conference on Innovation in Aviation and Space , 2019, 2019
Dowling, L., Flanagan, L., Rice, H., Trimble, D., and Kennedy, J, The use of a benchmark periodic metamaterial to inform numerical modelling and additive manufacturing approaches, ISMA 2018, (paper no 518), 2018
H.J.Rice J.Kennedy and P.Göransson, Design of a kelvin cell acoustic metamaterial, ISMA 2018, Leuven, Belgium, (paper no 514), 2018
Eleonora Neri, John Kennedy and Gareth J. Bennett, Bay Cavity Noise for Full-Scale Nose Landing Gear: a comparison between experimental and numerical results, Aerospace Science and Technology, 72, 2018, p278 - 291
Gareth J. Bennett, Eleonora Neri, John Kennedy, Noise Characterization of a Full-Scale Nose Landing Gear, AIAA Journal of Aircraft, 55, (6), 2018, p2476 - 2490
Kun Zhao, Patrick Okolo, Yong Wang, John Kennedy, Gareth J. Bennett, An Experimental Characterization of the Interaction Between Two Tandem Planar Jets in a Crossflow, Journal of Fluids Engineering, 140, (11), 2018, p111106-1 - 111106-12
Dowling, L. and Mao, H. and Flanagan, L. and Kennedy, J. and Cuenca, J. and Rice, H. and Trimble, D. and Göransson, P., A combined design-manufacturing-testing investigation of micro- To macro-scale tailoring of open poroelastic materials based on perturbed Kelvin cell micro-geometries, 2018, pp1163-1177
John Kennedy, Petr Eret, Gareth J. Bennett, A parametric study of airframe effects on the noise emission from installed contra-rotating open rotors, International Journal of Aeroacoustics, 17, (6-8), 2018, p624-654
Kennedy J., Bennett G.J., A parametric study of airframe effects on installed contra rotating open rotor noise, 21st Workshop of the Aeroacoustics Specialists Committee of the CEAS - Aircraft Noise Generated from Ducted or Un-Ducted Rotors, Dublin, Ireland, 2017
Okolo Patrick N., Zhao Kun, Kennedy John, Bennett Gareth J., Numerical Modeling of Wire Screens for Flow and Noise Control , 2017, American Institute of Aeronautics and Astronautics , 2017
Kun Zhao, Patrick N. Okolo, John Kennedy, Gareth J Bennett, 2D PIV measurement on the interaction zone between two parallel planar jets in a crossflow, AIP Advances, 7, (10), 2017, p105104
Laurent Sanders, D.-C. Mincu, P. L. Vitagliano, M. Minervino, John Kennedy and Gareth J. Bennett, Prediction of the acoustic shielding by aircraft empennage for contra-rotating open rotors, International Journal of Aeroacoustics, 16, (7-8), 2017, p626 - 648
Petr Eret, John Kennedy, Paolo Castellini, Francesco Amoroso, Gareth J. Bennett, Experimental observations of an installed-on-pylon contra-rotating open rotor with equal blade number in pusher and tractor configuration, International Journal of Aeroacoustics, 15, (1-2), 2016, p228 - 249
Patrick N. Okolo, Kun Zhao, John Kennedy, and Gareth J. Bennett, Mesh Screen Application for Noise Reduction of Landing Gear Strut, 22nd AIAA/CEAS Aeroacoustics Conference, Lyon, France, 30 May 2016, AIAA, 2016
Kennedy J., Okolo P.N., Bennett G.J., A numerical and experimental investigation of the contribution of bay cavity resonances to landing gear noise, 20th Workshop of the Aeroacoustics Specialists Committee of the CEAS - Measurement Techniques and Analysis Methods for Aircraft Noise, University of Southampton, United Kingdom, 2016
Ian Walker , John Kennedy , Susanna Martin , Henry Rice, How Might People Near National Roads Be Affected by Traffic Noise as Electric Vehicles Increase in Number? A Laboratory Study of Subjective Evaluations of Environmental Noise, PLoS ONE, 11, (3), 2016
Gareth J. Bennett, John Kennedy, Craig Meskell, Michael Carley, Peter Jordan, Henry Rice, Aeroacoustics research in Europe: The CEAS-ASC report on 2013 highlights, Journal of Sound and Vibration, 340, 2015, p39 - 60
Eleonora Neri, John Kennedy, Gareth J. Bennett, Aeroacoustic Source Separation on a Full Scale Nose Landing Gear Featuring Combinations of Low Noise Technologies, ASME 2015 Noise Control and Acoustics Division Conference at InterNoise 2015, San Francisco, CA., USA, 9-12 August 2015, ASME, 2015, ppV001T01A006; 11 pages
Petr Eret, John Kennedy, Gareth J. Bennett, Effect of noise reducing components on nose landing gear stability for a mid-size aircraft coupled with vortex shedding and freeplay, Journal of Sound and Vibration, 354, 2015, p91 - 103
Eleonora Neri, John Kennedy, Gareth J. Bennett, Characterization of Low Noise Technologies Applied to a Full Scale Fuselage Mounted Nose Landing Gear, INTER-NOISE 2015 - 44th International Congress and Exposition on Noise Control Engineering., San Francisco, CA., USA, 9-12 August 2015, edited by Maling G.,Burroughs C. , The Institute of Noise Control Engineering of the USA, Inc., 2015, ppV001T01A005; 10 pages
Kennedy J., Eret P., Bennett G.J., The Influence of Airframe Installation on the Broadband Component of CROR Noise, 19th CEAS-ASC Workshop and 5th Scientific Workshop of X-Noise EV, Broadband Noise of Rotors and Airframe, La Rochelle, France, , 23-25 September, 2015
Pallas Marie-AgnÚs, Berengier Michel, KENNEDY John, MORGAN Phil, GASPARONI Sara, WEHR Reinhard, Noise emission levels for electric and hybrid vehicles - First results of the FOREVER project , 2014, 2014, pp10 - p
Kennedy, J., Holt, N., Carley, M., Walker, I., The influence of the acoustic properties of motorcycle helmets on temporary hearing threshold shift in motorcyclists, Acta Acustica United with Acustica, 100, 2014, p1129 - 1138
Kennedy John, Breakey David E., A simple model for the frequency dependence of turbulence length scales in jets , 2013, American Institute of Aeronautics and Astronautics , 2013
Kennedy, J., Carley, M., Holt, N., Walker, I., On-road and wind-tunnel measurement of motorcycle helmet noise, Journal of the Acoustical Society of America, 134, (3), 2013
Kennedy, J., Carley, M., Holt, N., Walker, I., The effects of windscreen flow on noise in motorcycle helmets, Proceedings of Meetings on Acoustics, 12, 2011
Kennedy, J., Adetifa, O., Carley, M., Holt, N., Walker, I., Aeroacoustic sources of motorcycle helmet noise, Journal of the Acoustical Society of America, 130, (3), 2011
Kennedy, J., Holt, N., Carley, M., Walker, I., Spectral filtering characteristics of a Motorcycle Helmet, Proceedings of Meetings on Acoustics, 12, 2011
Holt Nigel, Walker Ian, Kennedy John, Carley Michael, Motorcycle helmets and the frequency dependence of temporary hearing threshold shift , 2011, 12 , 2011, pp050001 -
Carley Michael, Kennedy John, Walker Ian, Holt Nigel, The experimental measurement of motorcycle noise , 2011, 12 , 2011, pp040002 -
Kennedy, J., Carley, M., Holt, N., Walker, I., The Sources and Effects of Noise Exposure in Motorcycling, 161st Acoustical Society of America Conference, 2011
Kennedy,J. & Fitzpatrick, J. , The Effect of Chevrons on the Turbulence Characteristics of Jets, paper no. 2010-4025, AIAA/CEAS Aeroacoustics, Stockholm, Sweden, June, 2010, 2010, pp1 - 19
F. Kerhervé, J. Fitzpatrick, J. Kennedy, Determination of two-dimensional space-time correlations in jet flows using simultaneous PIV and LDV measurements, Experimental Thermal and Fluid Science, 34, (6), 2010, p788-797
Non-Peer-Reviewed Publications
John Kennedy, Turbulence and Noise, Faculty of Engineering, University of Bristol, February, 2018, Professor Mahdi Azarpeyvand
Kennedy, J., Holt, N., Walker, I., The influence of sound on the safety of vulnerable road users, SWOV Institute for Road Safety Research, 2011
Research Expertise
Projects
- Title
- Noise mapping for the minimal noise aircraft fleet
- Summary
- With the advent of the Environmental Noise Directive (END) population level modelling of exposure to aircraft noise has increased within Europe. Present noise exposure legislation focuses on airports whereas the greatest potential to implement noise reduction technologies lies with the airlines and aircraft manufacturers. This work focuses on the modelling the noise emission of the fleet of Europe's largest airline by passenger numbers, Ryanair. The noise reduction achieved at a fleet level will be evaluated and the impact of changing fleet makeup assessed. Noise contours generated with SoundPLAN show the noise effects of the different aircraft types of the historic, current and future Ryanair fleet under realistic operating conditions. The generated noise contours provide an evidence base for decision making within the airline for investments aiming to reduce noise levels around airports.
- Funding Agency
- Ryanair Sustainable Aviation Research Centre
- Date From
- 01/09/2021
- Date To
- 31/08/2025
- Title
- Improving the Audio performance of speakers through LED screens
- Summary
- This project will conduct research on the modelling and experimental testing of next generation audio equipment for theatres. The work is a collaboration between IMAX and the ADAPT centre and hosted in the Department of Mechanical, Manufacturing and Biomedical Engineering.
- Funding Agency
- IMAX Theatres International Limited
- Date From
- 31/12/23
- Date To
- 31/3/25
- Title
- The application of Deep Learning Methods for breakthrough noise and vibration control using Metamaterials
- Summary
- The past two decades has witnessed overwhelming research growth into phononic crystals and acoustic metamaterials (AMs). These artificially engineered structures have breakthrough dynamic mechanical properties and wave phenomena that are unattainable from naturally occurring materials. Radically new approaches in transportation and energy production will substantially modify the urban and interurban acoustic landscapes. This project aims to apply recent advances in AI based deep learning (DL) methods for AM design optimization which will include the performance of the additive manufacturing technologies required to realize structures that were once imagined unmanufacturable. The research is conducted with Irish SME partner Lios.
- Funding Agency
- Irish Research Council
- Date From
- 01/09/2021
- Date To
- 31/08/2023
- Title
- The application of Deep Learning methods for breakthrough noise and vibration control using metamaterials
- Summary
- Sustainable development of society is only possible in the presence of an enduring effort to reduce the environmental signature of human activities. In this context noise mitigation will be one of the major challenges of the next decades and noise scenarios will change dramatically in terms of absolute levels and frequency content. Acoustic metamaterials (AMs) offer the potential for radical changes in our approach to noise and vibration control. These materials are non-intuitive and achieve properties previously considered impossible in natural materials. Traditional or human centered approaches to design are incapable of achieving optimal solutions in the vast design spaces offered by AMs. This research intends to overcome these challenges by developing Deep Learning methods for optimized, low-cost design tools. The application of these tools to the latest additive manufacturing technologies aims to achieve designs that, until recently, would have been considered unmanufacturable.
- Funding Agency
- Provost's PhD Awards
- Date From
- 01/09/2021
- Date To
- 31/08/2025
- Title
- AERIALIST
- Summary
- AERIALIST aims at the application of acoustic metamaterial technologies to modify the intensity and the directivity patterns of aircraft noise sources in order to mitigate the community noise induced by the civil aviation. AERIALIST aims to: i)Extend acoustic metamaterial theory to take into account the effect of a realistic aerodynamic flow and comply to the strict weight constraints typical of the aeronautical applications. ii) Develop advanced numerical methods to simulate acoustic metamaterial in aeronautic operating conditions and characterize the mechanical properties required to achieve the target behaviour. iii) Use state of the art additive manufacturing technologies to develop new strategies for the manufacture of acoustic meta-materials in physically useful volumes and provide a roadmap for future development to higher TRL. iv) Provide a proof of concepts through the experimental validations of the most promising designs, evaluate the technical feasibility of noise-reductions devices based on the developed technology, and identify a possible roadmap to their practical realization.
- Funding Agency
- EU H2020
- Date From
- 01/06/2017
- Date To
- 31/05/2020
- Title
- TANDEM
- Summary
- TANDEM (Tuneable Acoustic Noise DampEning Materials) brings together expertise from acoustics, applied mathematics, and chemistry to deliver the next generation of acoustic materials. It will focus on the development of SoundBounce - an innovative new noise-cancelling metamaterial. The smart acoustic material can be used in the automotive, aerospace, construction, and power generation industries. SoundBounce provides a cost-effective way of absorbing harmful or unwanted noise, protecting people and structures.
- Funding Agency
- EU H2020
- Date From
- 01/06/2019
- Date To
- 31/05/2021
- Title
- Advanced acoustic metamaterials for noise reduction, optimised for additive manufacturing technologies
- Summary
- In recent years a new class of acoustic materials with highly unusual properties has been proposed known as an acoustic metamaterial. These materials have the ability to alter the reflection, refraction or diffraction of sound in a controlled manner that is unlike any traditional or natural material. These metamaterials are often based on a complex geometric microstructure that must be precision manufactured to achieve the acoustic properties desired. Firstly this research will address the design of the material microstructure. Designs must be amenable to numerical simulations so that targeted behaviour can be achieved. The second challenge lies in successfully manufacturing the designed microstructure to the necessary precision. Finally the design loop will be closed as the physical test results are used to validate and develop the numerical simulations. This will allow an iterative design process which will expand our understanding of the physics and manufacture of these metamaterials with each iteration through the loop.
- Funding Agency
- Irish Research Council
- Date From
- 01/09/2019
- Date To
- 31/08/2023
- Title
- Noise-Adapt
- Summary
- In accordance with Art. 6.2 of the Environmental Noise Directive (END), the European Commission recently developed Common Noise assessment methods (CNOSSOS-EU) for road, railway, aircraft and industrial noise to be used after adoption by the Member States for the purpose of strategic noise mapping as required by Article 7 of the END. Noise-Adapt will provide a transitional needs assessment for adapting to CNOSSOS-EU in the Irish context for road, rail, air, and industry, including the administration of a standardised approach for population exposure estimation (Strategic Noise Mapping).
- Funding Agency
- Environmental Protection Agency
- Date From
- 01/2/2018
- Date To
- 01/06/2020
- Title
- WENEMOR
- Summary
- The WENEMOR project has been developed in response to the requirements of the European Clean Sky Joint Technology Initiative to assess the aero-acoustic noise emissions for an advanced regional open rotor aircraft configuration. The consortium consists of 7 partners including two universities (Trinity College Dublin and Università Politecnica delle Marche), a large European wind tunnel facility (Pininfarina) and several SMEs (Eurotech, Teknosud, MicrodB and Paragon S.A.) with specific competences in design and manufacture and noise measurements and data analysis. The project utilises a proposed design for an advanced regional aircraft configuration for the model geometries with realistic modern blade profiles for the propulsion system. The project has designed, manufactured and tested a 1/7th scale model of the proposed open rotor aircraft design. The model consisted of a modular design featuring interchangeable tail pieces, variable fuselage length, engine pylon rotation and elongation and was controllable for angle of attack. The test campaign consisted of aero-acoustic measurements in an open test section of a large low speed wind tunnel for a wide ranging set of configurations.
- Funding Agency
- EU Clean Sky
- Date From
- 01/09/2011
- Date To
- 28/02/2013
- Title
- FOREVER
- Summary
- The FOREVER project (Future OpeRational impacts of Electric Vehicles on national European Roads) addresses future vehicle technologies, specifically electric and hybrid-electric vehicles and low-noise tyres, as part of the CEDR Transnational Road Research Programme Call 2012 on Noise. The project aims primarily to provide data and information on the potential future noise impacts and noise-related safety impacts of electric vehicles on national roads, the latter considering the safety of other road users. As such, this takes a different focus from much of the previous research in these areas, which has generally focussed on the noise impacts in city (low-speed) environments and the potential safety risks posed to pedestrians.
- Funding Agency
- CEDR
- Date From
- 01/01/2013
- Date To
- 31/12/2014
- Title
- ALLEGRA
- Summary
- This project focuses on the design and testing of Main and Nose Landing Gear noise reduction concepts. The outputs of ALLEGRA will result in pragmatic, validated solutions which will reduce noise, emissions and improve fuel consumption. These solutions will be developed in conjunction with an EU aircraft manufacturer (Alenia) to ensure feasibility and to reduce time to implementation. During landing approach when engines are operating at low thrust the noise of the airframe contributes strongly to the overall noise signature of modern aircraft. Airframe noise is generated by airflow around components of the aircraft. The main sources of airframe noise are therefore the high drag elements such as landing gears and also the high lift devices on the wings. For larger aircraft, it is the landing gear noise that dominates. ALLEGRA will carry out conceptual design and aeroacoustic measurements in an open test section of a large low speed aeroacoustic wind tunnel, on complete reduced or full scale modular models of different configurations of main and nose landing gear.
- Funding Agency
- EU Clean Sky
- Date From
- 01/01/2013
- Date To
- 31/12/2014
Recognition
Awards and Honours
Teaching Innovation Award (Faculty of Engineering, Mathematics and Science, Trinity College Dublin)
Memberships
Member of the Institute of Acoustics (MIOA) - The Institute of Acoustics is the UK's professional body for those working in acoustics, noise and vibration. It was formed in 1974 and is a nominated body of the Engineering Council, offering registration at Chartered and Incorporated Engineer levels. The range of interests of members embraces aspects such as aerodynamics, architectural acoustics, building acoustics, electroacoustics, engineering dynamics, noise and vibration, hearing, speech, underwater acoustics, together with a variety of environmental aspects.