All Outputs (28)

On the treatment of uncertainty in experimentally measured frequency response functions (2018)
Journal Article
Meggitt, J. (2018). On the treatment of uncertainty in experimentally measured frequency response functions. Metrologia, 55(6), 806. https://doi.org/10.1088/1681-7575/aadeeb

Frequency response functions (FRFs) are routinely used within experimental structural dynamics, among other fields. The uncertainty associated with their measurement is typically modelled on the simplified assumption that additive uncorrelated noise... Read More about On the treatment of uncertainty in experimentally measured frequency response functions.

In-situ sub-structure decoupling of resiliently coupled assemblies (2018)
Journal Article
Meggitt, J., & Moorhouse, A. (2019). In-situ sub-structure decoupling of resiliently coupled assemblies. Mechanical Systems and Signal Processing, 117, 723-737. https://doi.org/10.1016/j.ymssp.2018.07.045

The context of this paper is the increasing need for vibro-acoustic simulation across many sectors. A procedure is derived for decoupling the components of resiliently mounted assemblies. An independent characterisation of the components is obtaine... Read More about In-situ sub-structure decoupling of resiliently coupled assemblies.

In situ determination of dynamic stiffness for resilient elements (2015)
Journal Article
Meggitt, J., Elliott, A., Moorhouse, A., & Lai, K. (2016). In situ determination of dynamic stiffness for resilient elements. Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 230(6), 986-993. https://doi.org/10.1177/0954406215618986

An in situ method for the measurement of a resilient lements dynamic transfer stiffness is outlined and alidated. Unlike current methods, the proposed in situ approach allows for the characterisation of a resilient element whilst incorporated into an... Read More about In situ determination of dynamic stiffness for resilient elements.

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.

Detailed directivity measurements of aerodynamic sound sources (2015)
Presentation / Conference
Elliott, A., Meggitt, J., & Moorhouse, A. (2015, April). Detailed directivity measurements of aerodynamic sound sources. Presented at Noise and Vibration - Emerging Technologies, Dubrovnik, Croatia

The sound radiated by a vibrating surface can be modelled using combinations of elementary sources but for aerodynamic noise sources it less clear how to do so. It is proposed here that the arrangement and number of ideal sources required to represen... Read More about Detailed directivity measurements of aerodynamic sound sources.

On in-situ methodologies for the characterisation and simulation of vibro-acoustic assemblies
Thesis
Meggitt, J. On in-situ methodologies for the characterisation and simulation of vibro-acoustic assemblies. (Thesis). University of Salford

A drive towards leaner engineering has seen the use of physical prototypes become a limiting factor in the development of new products. Consequently, alternative prototyping methods are of interest. With their ability to reduce cost, accelerate time... Read More about On in-situ methodologies for the characterisation and simulation of vibro-acoustic assemblies.

Component replacement transfer path analysis
Presentation / Conference
Meggitt, J., Elliott, A., Moorhouse, A., Jalibert, A., & Franks, G. Component replacement transfer path analysis. Presented at International Conference on Noise and Vibration Engineering (ISMA) / International Conference on Uncertainty in Structural Dynamics (USD) 2020, Leuven, Belgium

In-situ Transfer Path Analysis (TPA) is a diagnostic method used to analyse the propagation of noise and vibration through complex built-up structures. Its defining feature is the independent characterisation of an assembly's vibratory source in term... Read More about Component replacement transfer path analysis.

On the use of experimental ensembles in a hybrid deterministic-statistical energy analysis method
Presentation / Conference
Clot-Razquin, A., Langley, R., Meggitt, J., Moorhouse, A., & Elliott, A. On the use of experimental ensembles in a hybrid deterministic-statistical energy analysis method. Presented at International Conference on Noise and Vibration Engineering (ISMA) / International Conference on Uncertainty in Structural Dynamics (USD) 2020, Leuven, Belgium

There is a clear need in modern industries for models that can predict the vibro-acoustic response of their manufactured products at the design stage. Models based on the hybrid deterministic-statistical method are a suitable solution to overcome the... Read More about On the use of experimental ensembles in a hybrid deterministic-statistical energy analysis method.