Ramis Soriano, J.; Segovia, E.; Alba Fernández, J.; Carbajo San Martín, J.; Godinho, L. (2012). Numerical Evaluation of the Vibration Reduction Index for Structural Joints. Archives of Acoustics. 37(2):189-197. doi:10.2478/v10168-012-0025-4
Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10251/48023
Title:
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Numerical Evaluation of the Vibration Reduction Index for Structural Joints
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Author:
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Ramis Soriano, Jaime
Segovia, Enrique
Alba Fernández, Jesús
Carbajo San Martín, Jesús
Godinho, Luis
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UPV Unit:
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Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada
Universitat Politècnica de València. Escuela Politécnica Superior de Gandia - Escola Politècnica Superior de Gandia
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Issued date:
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Abstract:
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The present paper addresses the analysis of structural vibration transmission in the presence of structural joints. The problem is tackled from a numerical point of view, analyzing some scenarios by using finite element ...[+]
The present paper addresses the analysis of structural vibration transmission in the presence of structural joints. The problem is tackled from a numerical point of view, analyzing some scenarios by using finite element models. The numerical results obtained making use of this process are then compared with those evaluated using the EN 12354 standard vibration reduction index concept. It is shown that, even for the simplest cases, the behavior of a structural joint is complex and evidences the frequency dependence. Comparison with results obtained by empirical formulas reveals that those of the standards cannot accurately reproduce the expected behavior, and thus indicate that alternative complementary calculation procedures are required. A simple methodology to estimate the difference between numerical and standard predictions is here proposed allowing the calculation of an adaptation term that makes both approaches converge. This term was found to be solution-dependent, and thus should be evaluated for each structure.
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Subjects:
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Finite Element Model
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Structural joints
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Vibration reduction
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Calculation procedure
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Empirical formulas
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EN 12354
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Finite element models
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Frequency dependence
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Numerical evaluations
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Numerical results
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Structural vibrations
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Vibration reductions
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Structural dynamics
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Computer simulation
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Copyrigths:
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Cerrado |
Source:
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Archives of Acoustics. (issn:
0137-5075
)
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DOI:
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10.2478/v10168-012-0025-4
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Publisher:
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Polish Scientific Publishers
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Publisher version:
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http://dx.doi.org/10.2478/v10168-012-0025-4
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Project ID:
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Ministry of Science and Innovation (Spain) [BIA2010-17723]
University of Alicante [GRE10-29]
European Acoustics Association (EAA)
International Commission for Acoustics (ICA)
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Thanks:
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This paper represents an improvement and expansion of a paper presented at the 42th CONGRESS OF ACOUSTIC-TECNIACUSTICA (R) 2011, Iberian Meeting on Acoustics and European Symposium on Environmental Acoustics and Sustainable ...[+]
This paper represents an improvement and expansion of a paper presented at the 42th CONGRESS OF ACOUSTIC-TECNIACUSTICA (R) 2011, Iberian Meeting on Acoustics and European Symposium on Environmental Acoustics and Sustainable Building Acoustics, organized by the Sociedad Espanola de Acustica (SEA), the Acoustics Laboratory of the University of Extremadura, and the Sociedade Portuguesa de Acustica (SPA), and with the support of the European Acoustics Association (EAA) and the International Commission for Acoustics (ICA).
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Type:
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Artículo
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