Utilize este identificador para referenciar este registo: http://hdl.handle.net/10198/1980
Título: The modal analysis of a pipe elbow with realistic boundary conditions
Autor: Carneiro, J.O.
Melo, F.J.M.Q. de
Rodrigues, J.F.D.
Lopes, H.
Teixeira, Viriato
Palavras-chave: Curved pipe
Straight pipe
Ring element
Experimental modal analysis
Data: 2005
Editora: Elsevier
Citação: Carneiro, J.O.; Melo, F.J.Q. de; Rodrigues, J.F.D.; Lopes, H.; Teixeira, V. (2005) - The modal analysis of a pipe elbow with realistic boundary conditions. International Journal of Pressure Vessels and Piping. ISSN 0308-0161. 82:8, p.593-601
Resumo: A vibration analysis for the determination of the natural frequencies and the associated eigenmodes of a pipe elbow with end-flanges or tangent terminations was performed. A numerical investigation of this problem was achieved with a semi-analytic definition finite ring element and a commercial finite element code. To assess the accuracy of the numerical solution for the elbow vibration, an experimental modal analysis was performed on a curved and on a straight pipe. The responses were processed by a data acquisition system which performs a fast Fourier transform on the time histories to convert them from a time to frequency domain, these leading to the extraction of natural frequencies and mode shapes associated with the test-specimen. The results were compared with the corresponding ones from the numerical approach and discussion about the results completes the paper.
URI: http://hdl.handle.net/10198/1980
ISSN: 0308-0161
Versão do Editor: http://www.sciencedirect.com/science/journal/03080161
Aparece nas colecções:ESTiG - Artigos em Revistas Indexados à WoS/Scopus

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