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Design of a Kelvin ...
Design of a Kelvin Cell Acoustic Metamaterial
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- Rice, H. J. (författare)
- Trinity College Dublin,Mechanical Engineering
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- Kennedy, John (författare)
- Trinity College Dublin,Mechanical Engineering
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- Göransson, Peter, 1959- (författare)
- KTH,MWL Marcus Wallenberg Laboratoriet,VinnExcellence Center for ECO2 Vehicle design,Centre for ECO2 Vehicle Design
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(creator_code:org_t)
- KU Leuven - Departement Werktuigkunde, 2018
- 2018
- Engelska.
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Ingår i: Proceedings of ISMA 2018 - International Conference on Noise and Vibration Engineering and USD 2018 - International Conference on Uncertainty in Structural Dynamics. - : KU Leuven - Departement Werktuigkunde. - 9789073802995 ; , s. 1081-1090
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Abstract
Ämnesord
Stäng
- Advancements in 3D print technology now allows the printing of structured acoustic absorbent materials at appropriate microscopic scale and sample sizes. Optimisation of parameter sets associated with a Kelvin Cell structure have the potential to develop various metabehaviours in the associated acoustic responses. The repeatability of the fundamental cell unit also provide a route for the development of viable macro models to simulate built up structures based on detailed models of the individual cell units. This paper describes a process to model, print and test of such a sample. Manufacturing restraints will initially guide the optimised design. Micro to macro models based on a single cell structure which are cross checked against a full visco thermal acoustic finite element model of the individual cell. A macro model based on a reduced lossy helmholtz system is then used to predict the absorptive response response under normal incidence and checked against a manufactured sample under experimental test.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Strömningsmekanik och akustik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Fluid Mechanics and Acoustics (hsv//eng)
Nyckelord
- Vehicle and Maritime Engineering
- Farkostteknik
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)
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