Vibration of a cantilever panel due to turbulence ingestion, part II: A virtual experiment
- Publication Type:
- Conference Proceeding
- Citation:
- Proceedings of Acoustics 2024 Acoustics in the Sun, 2024
- Issue Date:
- 2024-01-01
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In the first part of this investigation, a semi-analytical approach was presented to predict the vibration response of a cantilever panel due to turbulence ingestion. This study focuses on the practical implementation of numerical experiments using a virtual synthesis of the source scanning technique. This practical framework will serve as a prototype for laboratory investigations. To practically predict the vibration response of a cantilever plate due to turbulence interaction at the leading edge, the problem can be re-framed as synthesising the corresponding response of a structure with an existing pressure field. An array of acoustic compact sources, such as monopoles, can sufficiently excite a structure creating the existing acoustic pressure field. This acoustic pressure field can instead be replicated using the superposition principle, whereby a synthetic array of a single monopole scanning over the structure can replace the array of monopoles. Complex amplitudes are derived from fitting the existing acoustic pressure field to a target pressure field and are subsequently used to scale measured frequency response functions due to the source scanning monopole sources to synthesize the predicted vibration response. It is anticipated that this framework will complement wind tunnel testing as an efficient estimation.
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