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All Outputs (39)

Prediction of Radiated Structural Noise Using Decomposed Vibro-Acoustic Frequency Response Functions (2024)
Journal Article
Barton, L., Elliott, A., & Smith, J. (in press). Prediction of Radiated Structural Noise Using Decomposed Vibro-Acoustic Frequency Response Functions. #Journal not on list, https://doi.org/10.61782/fa.2023.1125

The manner in which a system radiates noise is dependent upon the resonant behaviour and the forced vibration of the structure. It has been shown previously that the modes of such a system can be identified by performing a singular value decompositio... Read More about Prediction of Radiated Structural Noise Using Decomposed Vibro-Acoustic Frequency Response Functions.

Development of electric scooter alerting sounds using psychoacoustical metrics (2022)
Journal Article
Walton, T., Torija Martinez, A., & Elliott, A. (2022). Development of electric scooter alerting sounds using psychoacoustical metrics. Applied Acoustics, 201(109136), https://doi.org/10.1016/j.apacoust.2022.109136

In recent years electric micromobility transportation, including electric scooters, has seen a surge in popularity due to technological advances and the move to lower emission transport. Although offering a range of societal benefits, such as reduced... Read More about Development of electric scooter alerting sounds using psychoacoustical metrics.

Aeroacoustic design and optimisation of an all-electric ducted fan propulsion module for low-noise impact (2022)
Presentation / Conference
Casagrande Hirono, F., Torija Martinez, A., Elliott, A., Taylor, J., Grimshaw, S., & Lefas, D. (2022, June). Aeroacoustic design and optimisation of an all-electric ducted fan propulsion module for low-noise impact. Presented at 28th AIAA/CEAS Aeroacoustics 2022 Conference, Southampton, UK

This paper discusses the aeroacoustic aspects of the design, construction and testing of an all-electric ducted fan propulsion module for future electric aircraft. An overview of the propulsor aerodynamic design is provided. Acoustic measurements mad... Read More about Aeroacoustic design and optimisation of an all-electric ducted fan propulsion module for low-noise impact.

Acoustic optimization of a contra-rotating propeller rig (2022)
Journal Article
Casagrande Hirono, F., Torija Martinez, A., & Elliott, A. (2022). Acoustic optimization of a contra-rotating propeller rig. https://doi.org/10.1121/10.0010735

With the advance of unmanned aerial vehicles as a viable alternative for urban transportation, it is imperative that these vehicles have a low impact on community noise. Contra-rotating propeller technologies offer interesting advantages over traditi... Read More about Acoustic optimization of a contra-rotating propeller rig.

Component replacement TPA : a transmissibility-based structural modification method for in-situ transfer path analysis (2021)
Journal Article

In-situ Transfer Path Analysis is a diagnostic method used to analyse the propagation of noise and vibration through
complex built-up structures. Its defining feature is the invariant characterisation of an assembly’s active components
(i.e. vibrat... Read More about Component replacement TPA : a transmissibility-based structural modification method for in-situ transfer path analysis.

An experimental exploration of the properties of random frequency response functions (2020)
Journal Article
Clot, A., Meggitt, J., Langley, R., Elliott, A., & Moorhouse, A. (2021). An experimental exploration of the properties of random frequency response functions. Journal of Sound and Vibration, 491, 115773. https://doi.org/10.1016/j.jsv.2020.115773

The vibro-acoustic analysis of complex structures over a broadband frequency range is an extremely challenging problem that may often require the use of a hybrid deterministic-statistical approach. Due to manufacturing imperfections, the frequency re... Read More about An experimental exploration of the properties of random frequency response functions.

Development of a hybrid FE-SEA-experimental model (2019)
Journal Article
Clot, A., Meggitt, J., Langley, R., Elliott, A., & Moorhouse, A. (2019). Development of a hybrid FE-SEA-experimental model. Journal of Sound and Vibration, 452(Jul 19), 112-131. https://doi.org/10.1016/j.jsv.2019.03.027

The vibro-acoustic response of complex structures with uncertain properties is a problem of great concern for modern industries. In recent years, much research has been devoted to the prediction of this response in the mid-frequency range where, beca... Read More about Development of a hybrid FE-SEA-experimental model.

A covariance based framework for the propagation of uncertainty through inverse problems with an application to force identification (2019)
Journal Article
Meggitt, J., Moorhouse, A., & Elliott, A. (2019). A covariance based framework for the propagation of uncertainty through inverse problems with an application to force identification. Mechanical Systems and Signal Processing, 124, 275-297. https://doi.org/10.1016/j.ymssp.2018.11.038

Inverse problems are widely encountered in fields as diverse as physics, geophysics, engineering and finance.
In the present paper, a covariance based framework for the estimation of their uncertainty is presented and applied to the problem of inve... Read More about A covariance based framework for the propagation of uncertainty through inverse problems with an application to force identification.

Broadband characterisation of in-duct acoustic sources using an equivalent source approach (2018)
Journal Article
Meggitt, J., Elliott, A., Moorhouse, A., Banwell, G., Hopper, H., & Lamb, J. (2019). Broadband characterisation of in-duct acoustic sources using an equivalent source approach. Journal of Sound and Vibration, 442(Mar 19), 800-816. https://doi.org/10.1016/j.jsv.2018.10.041

This paper is concerned with the development of an experimental method capable of independently characterising low Mach number, in-duct fluid machines, such as pumps, fans, etc. The aim is to propose and test a source characterisation method that is... Read More about Broadband characterisation of in-duct acoustic sources using an equivalent source approach.

Vibro-electric transfer path analysis of a solid body electric guitar (2018)
Presentation / Conference
Elliott, A., Magill, J., & Kendrick, P. (2018, April). Vibro-electric transfer path analysis of a solid body electric guitar. Presented at Acoustics 2018, Cardiff, Wales

Solid bodied electric guitars typically employ one or more magnetic pickups attached to the guitar body in close proximity to the guitar strings. At low frequencies the amplitude of the vibrating string is typically far greater than vibrations transm... Read More about Vibro-electric transfer path analysis of a solid body electric guitar.

Blocked forces for the characterisation of structure borne noise (2015)
Presentation / Conference
Elliott, A., Meggitt, J., & Moorhouse, A. (2015, August). Blocked forces for the characterisation of structure borne noise. Presented at Internoise 2015, San Francisco

During the development of complex assemblies such as aircraft the noise from installed components must be considered. For airborne sound sources this issue has been resolved to some extent by standard measurement procedures which allow equipment supp... Read More about Blocked forces for the characterisation of structure borne noise.