VIBRAÇÕES LIVRES ACOPLADAS EM CASCAS CILÍNDRICAS CONTENDO FLUIDO E CONECTADAS COM PLACAS DE FUNDO APOIADAS EM BASE ELÁSTICA

Autores

  • Neander Berto Mendes UnB
  • Lineu José Pedroso UnB
  • Paulo Marcelo Vieira Ribeiro UFPE

DOI:

https://doi.org/10.26512/ripe.v2i35.21427

Palavras-chave:

Vibrações Livres. Sistema Casca-Placa. Elementos Finitos.

Resumo

Neste trabalho são estudadas as vibrações livres acopladas de um tanque preenchido com um líquido invíscido e incompressível com uma superfície livre ortogonal ao eixo do tanque. O tanque é modelado por uma casca cilíndrica circular simplesmente apoiada e conectada a uma placa circular simplesmente apoiada por uma mola distribuída rotacional circunferêncial artificial de rigidez apropriada. A placa é considerada assentada em uma fundação elástica de Winkler. Os efeitos das ondas de superfície livre e da pressão hidrostática do líquido são desprezados. Os modos de “bulging”(deformadas das paredes do tanque que oscilam com o líquido) da estrutura são investigados. A solução apresentada na literatura (Amabili,1997) é obtida como um problema de autovalor pelo uso da expansão de Rayleigh-Ritz dos modos de vibração e então minimizando-se o quociente de Rayleigh para vibrações acopladas. Os efeitos da rigidez da fundação de Winkler e da rigidez das molas na junção casca-placa são analisados para tanques preenchidos com água. Os resultados apresentados são comparados com resultados numéricos obtidos pelo método dos elementos finitos (MEF) via ANSYS.

Downloads

Não há dados estatísticos.

Referências

Amabili, M. (1997). Bulging modes of circular bottom plates in rigid cylindrical containers filled with a liquid. In: Journal of Sound and Vibration 199(3), 431-452.

Amabili, M. (1996). Bulging modes of circular bottom plates in rigid cylindrical containers filled with a liquid. In: Shock and Vibration.

Amabili, M. (1996). Free vibration of partially filled, horizontal cylindrical shells. In: Journal of Sound and Vibration 191, 757-780.

Amabili, M. e Dalpiaz, G. (1995). Breathing vibrations of a horizontal circular cylindrical tank shell, partially filled with liquid. In: Transactions of the American Society of Mechanical Engineers, Journal of Vibration and Acoustics 117, 187-191.

Amabili, M. e Dalpiaz, G. (1995). . Vibration of a fluid-filled circular cylindrical tank: axisymmetric modes of the elastic bottom plate. Proceedings of the International Forum on Aeroelasticity and Structural Dynamics, 15-17 June, Manchester, U.K. 1, 38.1-38.8.

Amabili, M., Frosali, G. e Kwak, M. K. (1996). Free vibrations of annular plates coupled with fluids. In: Journal of Sound and Vibration 191, 825-846.

Bauer, H. F. e Siekmann, J. (1971). Dynamic interaction of a liquid with the elastic structure of a circular cylindrical container.In: Ingenieur Archiv 40, 266-280.

Berry, J. G. e Reissner, E. (1958). The effect of an internal compressible fluid column on the breathing vibrations of a thin pressurized cylindrical shell. In: Journal of Aeronautical Science 25, 288-294.

Bhuta, G. e Koval, L. R. (1964). Hydroelastic solution of the sloshing of a liquid in a cylindrical tank. In: Journal of the Acoustical Society of America 36, 2071-2079.

Cheng, L. (1994). Fluid-structural coupling of a plate-ended cylindrical shell: vibration and internal sound field. In: Journal of Sound and Vibration 174, 641-654.

Cheng, L. e Nicolas, J. (1992). Free vibration analysis of a cylindrical shell-circular plate system with general coupling and various boundary conditions. In: Journal of Sound and Vibration 155, 231-247.

Chiba, M. (1994). Axisymmetric free hydroelastic vibration of a flexural bottom plate in a cylindrical tank supported on an elastic foundation. In: Journal of Sound and Vibration 169, 387-394.

Chiba, M. (1993). Nonlinear hydroelastic vibration of a cylindrical tank with an elastic bottom, containing liquid: part II: linear axisymmetric vibration analysis. In: Journal of Fluids and Structures 7, 57-73.

Chiba, M. (1992). Nonlinear hydroelastic vibration of cylindrical tank with an elastic bottom, containing liquid, part I: experiment. In: Journal of Fluids and Structures 6, 181-206.

Faulkner, L. L. (1969). Ph.D. Thesis, Purdue University. Vibration analysis of shell structures using receptances.

Gupta, R. K. e Hutchinson, G. L. (1988). Free vibration analysis of liquid storage tanks. In: Journal of Sound and Vibration 122, 491-506.

Huang, D. T. e Soedel, W. (1993). On the free vibrations of multiple plates welded to a cylindrical shell with special attention to mode pairs. In: Journal of Sound and Vibration 166, 315-339.

Huang, D. T. e Soedel, W. (1993). Study of the forced vibration of shell-plate combinations using the receptance method. In: Journal of Sound and Vibration 166, 341-369.

Kondo, H. (1981). Axisymmetric vibration analysis of a circular cylindrical tank. In: Bulletin of the Japan Society of Mechanical Engineers (JSME) 24, 215-221.

Lamb, H. (1945). Hydrodynamics. New York: Dover. p. 46.

Leissa, A. W. (1973). Vibration of Shells. NASA SP-288. Washington D.C.: U.S. Government Printing Office.

Leissa, A. W. (1969). Vibration of Plates. NASA SP-160. Washington, DC: Government Printing Office.

Leissa, A. W. e Narita, Y. (1980). Natural frequencies of simply supported circular plates. In:Journal of Sound and Vibration 70, 221-229.

Lindholm, U. S., Kana, D. D. e Abramson, H. N. (1962). Breathing vibrations of a circular cylindrical shell with an internal liquid. In: Journal of Aeronautical Science 29, 1052-1059.

Meirovitch, L. (1986). Elements of Vibration Analysis. New York: McGraw-Hill; (second edition). pp. 270-282.

Morand, H. J.-P. e Ohayon, R. (1992). Interactions Fluides-Structures. Paris: Masson. pp. 71-72. (English edition: 1995 Fluid Structure Interaction. New York: John Wiley)

Wheelon, A. D. (1968) Tables of Summable Series and Integrals Involving Bessel Functions. San Francisco: Holden-Day.

Yamada, G., Irie, T. e Tamiya, T. (1986). Free vibration of a circular cylindrical double shell system closed by end plates. In: Journal of Sound and Vibration 108, 297-304.

Yuan, J. e Dickinson, S. M. (1994). The free vibration of circularly cylindrical shell and plate systems. In: Journal of Sound and Vibration 175, 241-263.

Yuan, J. e Dickinson, S. M. (1992). On the use of artificial springs in the study of the free vibrations of systems comprised of straight and curved beams. In: Journal of Sound and Vibration 152, 203-216.

Yuan, J. e Dickinson, S. M. (1992). The flexural vibration of rectangular plate systems approached by using artificial springs in the Rayleigh-Ritz method. In: Journal of Sound and Vibration 159, 39-55.

Yamaki, N., Tani, J. e Yamaji, T. (1984). Free vibration of a clamped-clamped circular cylindrical shell partially filled with liquid. In: Journal of Sound and Vibration 94, 531-550.

Zhu, F. (1994). Rayleigh quotients for coupled free vibrations. In: Journal of Sound and Vibration 171, 641-649.

Downloads

Publicado

2017-08-22

Como Citar

Mendes, N. B., Pedroso, L. J., & Ribeiro, P. M. V. (2017). VIBRAÇÕES LIVRES ACOPLADAS EM CASCAS CILÍNDRICAS CONTENDO FLUIDO E CONECTADAS COM PLACAS DE FUNDO APOIADAS EM BASE ELÁSTICA. Revista Interdisciplinar De Pesquisa Em Engenharia, 2(35), 185–204. https://doi.org/10.26512/ripe.v2i35.21427

Artigos mais lidos pelo mesmo(s) autor(es)

<< < 1 2