School of Science, Engineering & Environment

On the limitations of transmissibility functions for damage localisation: the influence of completeness (2024)
Journal Article
Meggitt, J. W., & McGee, R. C. (in press). On the limitations of transmissibility functions for damage localisation: the influence of completeness. Structural Health Monitoring, https://doi.org/10.1177/14759217241226602

Transmissibility functions are used to identify and locate damage in critical structures for health monitoring purposes. Their appeal over conventional signal or frequency response-based functions lie in a unique property; sub-structural invariance.... Read More about On the limitations of transmissibility functions for damage localisation: the influence of completeness.

Power flow sensitivity analysis for optimal structural modification (2023)
Journal Article
Meggitt, J. (2023). Power flow sensitivity analysis for optimal structural modification. Applied Acoustics, 211, Article 109463. https://doi.org/10.1016/j.apacoust.2023.109463

Across many industries there is a need to develop products with improved vibro-acoustic performance. Whether the aim is to reduce the radiated sound level in a vehicle cabin, or to minimise the vibration level of sensitive components, the problem may... Read More about Power flow sensitivity analysis for optimal structural modification.

Interval sensitivity analysis of joint dynamics in complex built-up structures (2022)
Journal Article
Meggitt, J. W. (2022). Interval sensitivity analysis of joint dynamics in complex built-up structures. Journal of Vibration and Control, 29(17-18), 4275-4289. https://doi.org/10.1177/10775463221113969

The dynamic properties of joints, or inter-component connections, are a principal source of uncertainty when modelling complex built-up structures. In the present paper, we propose an interval-based sensitivity analysis (SA) to establish the contribu... Read More about Interval sensitivity analysis of joint dynamics in complex built-up structures.

Interval-based identification of response-critical joints: A tool for model refinement (2022)
Journal Article
Meggitt, J. (2022). Interval-based identification of response-critical joints: A tool for model refinement. Journal of Sound and Vibration, 529, https://doi.org/10.1016/j.jsv.2022.116850

To accurately model the dynamics of a complex built-up structure it is often necessary to forgo the assumption of ideal rigid coupling between components. The dynamic behaviour of inter-component connections, or joints, can have a significant impact... Read More about Interval-based identification of response-critical joints: A tool for model refinement.

Noisy neighbours : towards a hybrid prediction and testing process for sound insulating partitions (2021)
Journal Article
Whittle, G., Elliott, A., Meggitt, J., Wong-McSweeney, D., & Parsons, R. (2021). Noisy neighbours : towards a hybrid prediction and testing process for sound insulating partitions. https://doi.org/10.25144/13759

There are numerous methods for characterising sound insulating and impact noise reducing components and systems, each with their own advantages and disadvantages. Two of the predominant modelling techniques for prediction of transmission loss through... Read More about Noisy neighbours : towards a hybrid prediction and testing process for sound insulating partitions.

Generalised round-trip identity — for the determination of structural dynamic properties at locations inaccessible or too distant for direct measurement (2021)
Journal Article
Wienen, K., Sturm, M., Moorhouse, A., & Meggitt, J. (2021). Generalised round-trip identity — for the determination of structural dynamic properties at locations inaccessible or too distant for direct measurement. Journal of Sound and Vibration, 511, 116325. https://doi.org/10.1016/j.jsv.2021.116325

In noise and vibration engineering, a structure’s passive dynamic properties are often quantified by frequency response functions (FRFs). This paper focuses on acquiring FRFs from experimental tests, considering both, translational (x, y, z) and rota... Read More about Generalised round-trip identity — for the determination of structural dynamic properties at locations inaccessible or too distant for direct measurement.

Vibro-acoustic analysis of a domestic product based on experimental measurement and hybrid modelling (2021)
Journal Article
Meggitt, J., Banwell, G., Elliott, A., Moorhouse, A., & Langley, R. (2021). Vibro-acoustic analysis of a domestic product based on experimental measurement and hybrid modelling. Applied Acoustics, 182, 108144. https://doi.org/10.1016/j.apacoust.2021.108144

The purpose of this paper is to present a case study whereby a hybrid experimental-numerical model is used to analyse the structureborne radiation from a domestic product (vacuum cleaner head). The passive (including radiative) properties of the str... Read More about Vibro-acoustic analysis of a domestic product based on experimental measurement and hybrid modelling.

Component replacement TPA : a transmissibility-based structural modification method for in-situ transfer path analysis (2021)
Journal Article
Meggitt, J., Elliott, A., Moorhouse, A., Jalibert, A., & Franks, G. (2021). Component replacement TPA : a transmissibility-based structural modification method for in-situ transfer path analysis. Journal of Sound and Vibration, 499, 115991. https://doi.org/10.1016/j.jsv.2021.115991

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.

Outputs (21)