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Transient Analysis of Composite Cylindrical Shells with Ring Stiffeners

링보강 복합재료 원통셸의 과도해석


Abstract

The theoretical method is developed to investigate the effects of ring stiffeners on free vibration characteristics and transient response for the ring stiffened composite cylindrical shells subjected to the impulse pressure Loading. In the theoretical procedure, the Love's thin shell theory combined with the discrete stiffener theory to consider the ring stiffening effect is adopted to formulate the theoretical model. The concentric or eccentric ring stiffeners are laminated with composite and have the uniform rectangular cross section. The modal analysis technique is used to develop the analytical solutions of the transient problem. The analysis is based on an expansion of the loads, displacements in the double Fourier series that satisfy the boundary conditions. The effect of stiffener's eccentricity, number, size, and position on transient response of the shells is examined. The results are verified by comparison with FEM results.

Keywords

References

  1. Mustafa, B. A. J. and Ali, R., 1987, 'Prediction of Natural Frequency of Vibration of Stiffened Cylindrical Shells and Orthogonally Stiffened Curved Panels,' J. of Sound and Vibration, Vol. 113(2), pp. 317-327 https://doi.org/10.1016/S0022-460X(87)80218-3
  2. Yang, B. and Zhou, J., 1995, 'Analysis of Ring-Stiffened Cylindrical Shells,' J. of Applied Mechanics, Vol. 62, pp. 1005-1014
  3. Lee, Y. S. and Kim, Y. W., 1998, 'Vibration Analysis of Rotating Composite Cylindrical Shells with Orthogonal Stiiffeners,' Computers and Structures, Vol. 69(2), pp. 271-281 https://doi.org/10.1016/S0045-7949(97)00047-3
  4. Wang, M., Swaddiwudhipong, S., and Tian, J., 1997, 'Ritz Method for Vibration Analysis of Cylindrical Shells with Ring Stiffeners,' J. of Engineering Mechanics, Vol. 123, pp. 134-142 https://doi.org/10.1061/(ASCE)0733-9399(1997)123:2(134)
  5. 김영완, 이영신, 1999, '다양한 경계조건을 갖는 링보강 복합재료 원통셀의 진동특성,' 한국소음진동공학회지, Vol. 9(3), pp. 485-492
  6. Srinivasan, R. S., Krishnan, P.A., 1989, 'Dynamic Analysis of Stiffened Conial Shell Panels,' Computers and Structures, Vol. 33(3), pp. 831-837 https://doi.org/10.1016/0045-7949(89)90257-5
  7. Chen, S. P., Dade, C., 1990, 'Dynamic Analysis of Stiffened Plates and Shells Using Spline Gauss Collocation Method,' Computers and Structures, Vol. 36(4), pp. 623-629 https://doi.org/10.1016/0045-7949(90)90077-F
  8. Pegg, N. G., 1992, 'A Numerical Study of Dynamic Pulse Buckling of Ring-Stiffened Cylinders,' Computers & Structures, Vol. 44(6), pp. 1205-1214 https://doi.org/10.1016/0045-7949(92)90364-6
  9. Sinha, G., Mukhopadhyay, M., 1995, 'Transient Dynamic Response of Arbitrary Siffened Shells by the Finite Element Method,' Journal of Vibration and Acoustics. Trans. of ASME, Vol. 117(1), pp. 11-16
  10. Pedron, C., Combescure, A., 1995, 'Dynamic Buckling of Stiffened Cylindrical Shells of Revolution Under a Transient Lateral Pressure Shock Wave,' Thin Walled Structures, Vol. 23(1-4), pp. 85-105 https://doi.org/10.1016/0263-8231(95)00006-Y
  11. Liao, C. L., Cheng, C. R., 1994, 'Dynamic Stability of Stiffened Laminated Composite Plates and Shells Subjected to In-plate Pulsating Forces,' Journal of Sound and Vibration, Vol. 174(3), pp. 335-351 https://doi.org/10.1006/jsvi.1994.1280
  12. Mukhopadhyay, M., Goswami, S., 1996, 'Transient Finite Element Dynamic Response of Laminated Composite Stiffened Shell,' Aeronautical Journal, Vol. 100(996), pp. 223-233
  13. Gong, S. W., Lam, K. Y., 1998, 'Transient Response of Stiffened Composie Submersible Hull Subjected to Underwater Explosive Shock,' Composite Structures, Vol. 41(1), pp. 27-37 https://doi.org/10.1016/S0263-8223(98)00016-6
  14. Lee, Y. S. and Lee, K. D., 1997, 'On the Dynamic Response of Laminated Circular Cylindrical Shells Under Impulse Loads,' Computers and Structures, Vol. 63(1), pp. 149-158 https://doi.org/10.1016/S0045-7949(96)00312-4
  15. SASI, 2000, 'ANSYS User's Manual,' Swanson Analysis System Inc., Houston