Abstract
In this study, the free vibration analysis of two joined laminated conical shells is investigated. Five equilibrium equations for each conical shell have been derived in a particular coordinate system; using Hamilton’s principle and first-order shear deformation theorem. The analytical solutions are obtained in the form of power series based on separation of variables method. The boundary conditions at both ends of the joined shells and the continuity conditions, at the conical shells contact, are extracted from energy formulations. As a result, the non-dimensional natural frequencies are studied for cross-ply laminated shells. The effects of semi-vertex angle, circumferential modes, number of layers, thickness, length of shells and different boundary conditions on non-dimensional frequencies are considered. As a comparing result, the non-dimensional frequencies and mode shapes are extracted using finite element method (FEM). The results are compared and verified with the previous available results in other researches. The results reveal a good agreement among analytical solutions, FEM and other results. The output of this paper can be used for analyzing cylindrical–conical shells in addition to joined conical shells.
Similar content being viewed by others
References
Ugural, A.C.: Stresses in Plates and Shells. McGraw-Hill, New York (1981)
Cooper, R.M., Naghdi, P.M.: Propagation of elastic waves in cylindrical shells, including the effects of transverse shear and rotary inertia. J. Acoust. Soc. 28, 56–63 (1956)
Tong, L.: Free vibration of composite laminated conical shells. Int. J. Mech. Sci. 35, 47–61 (1993)
Hosseini Hashemi, Sh., Fadaee, M.: On the free vibration of moderately thick spherical shell panel—a new closed-form procedure. J. Sound Vib. 330, 4352–4367 (2011)
Hosseini Hashemi, Sh., Ilkhani, M.R.: Exact solution for free vibrations of spinning nanotube based on nonlocal first order shear deformation shell theory. Compos. Struct. 157, 1–11 (2016)
Talebitooti, M., Ghayour, M., Ziaei-Rad, S., Talebitooti, R.: Free vibrations of rotating composite conical shells with stringer and ring stiffeners. Arch. Appl. Mech. 80(3), 201–215 (2010)
Talebitooti, M.: Three-dimensional free vibration analysis of rotating laminated conical shells: layerwise differential quadrature (LW-DQ) method. Arch. Appl. Mech. 83(5), 765–781 (2013)
Sofiyev, A.H.: The buckling of FGM truncated conical shells subjected to combined axial tension and hydrostatic pressure. Compos. Struct. 92(2), 488–498 (2010)
Talebitooti, M.: Analytical and finite-element solutions for the buckling of composite sandwich conical shell with clamped ends under external pressure. Arch. Appl. Mech. 87(1), 59–73 (2017)
Shadmehri, F., Hoa, S.V., Hojjati, M.: Buckling of conical composite shells. Compos. Struct. 94, 787–792 (2012)
Lashkari, M., Weingarten, V.: Vibration of segmented shells. Exp. Mech. 13, 120–125 (1973)
Hu, W.C., Raney, J.: Experimental and analytical study of vibrations of joined shells. AIAA J. 5, 976–980 (1976)
Alwar, R.S., Ramamurti, V.: Asymmetric bending of cylindrical conical shell junction. Nucl. Eng. Des. 12, 97–121 (1970)
Rose, J.L., Mortimer, R.W., Blum, A.: Elastic-wave propagation in a joined cylindrical–conical–cylindrical shell. Exp. Mech. 13, 150–6 (1973)
Irie, T., Yamada, G., Muramoto, Y.: Free vibration of joined conical–cylindrical shells. J. Sound Vib. 95, 31–9 (1984)
Tavakoli, M.S., Singh, R.: Eigensolutions of joined/hermetic shell structures using the state space method. J. Sound Vib. 130, 97–123 (1989)
Sivadas, K.R., Ganesan, N.: Free vibration analysis of combined and stiffened shells. Comput. Struct. 46, 537–546 (1993)
Zhao, Y., Teng, J.G.: A stability design proposal for cone–cylinder intersections under internal pressure. Int. J. Press. Vessels Pip. 80, 297–309 (2003)
Teng, J.G.: Elastic buckling of cone–cylinder intersection under localized circumferential compression. Eng. Struct. 18, 41–48 (1996)
Teng, J.G., barbagallo, M.: Shell restraint to ring buckling at cone–cylinder intersections. Eng. Struct. 19, 425–431 (1997)
Benjeddou, A.: Vibration of complex shells of revolution using B-spline finite elements. Comput. Struct. 74, 429–440 (2000)
Kamat, S., Ganapathi, M., Patel, B.P.: Analysis of parametrically excited laminated composite jointed conical–cylindrical shells. Comput. Struct. 79, 65–76 (2001)
El Damatty, A.A., Saafan, M.S., Sweedan, A.M.I.: Dynamic characteristics of combined conical–cylindrical shells. Thin Walled Struct. 43, 1380–1397 (2005)
Efraim, E., Eisenberger, M.: Exact vibration frequencies of segmented axisymmetric shells. Thin Walled Struct. 44, 281–289 (2006)
Patel, B.P., Shukla, K.K., Nath, Y.: Thermal post buckling analysis of laminated cross-ply truncated circular conical shells. Compos. Struct. 71, 101–114 (2005)
Patel, B.P., Ganapathi, M., Kamat, S.: Free vibration characteristics of laminated composite joined conical–cylindrical shells. J. Sound Vib. 237, 920–930 (2000)
Caresta, M., Kessissoglou, N.J.: Free vibrational characteristics of isotropic coupled cylindrical–conical shells. J. Sound Vib. 329, 733–751 (2010)
Ma, X., Jin, G., Xiong, Y., Liu, Z.: Free and forced vibration analysis of coupled conical–cylindrical shells with arbitrary boundary conditions. Int. J. Mech. Sci. 88, 122–137 (2014)
Shakouri, M., Kouchakzadeh, M.A.: Stability analysis of joined isotropic conical shells under axial compression. Thin Walled Struct. 74, 20–27 (2013)
Kouchakzadeh, M.A., Shakouri, M.: Analytical solution for axisymmetric buckling of joined conical shells under axial compression. Struct. Eng. Mech. 54, 649–664 (2015)
Shakouri, M., Kouchakzadeh, M.A.: Free vibration analysis of joined conical shells: analytical and experimental study. Thin Walled Struct. 85, 350–358 (2014)
Sarkheil, S., Foumani, M.S., Navazi, H.M.: Theoretical and experimental analysis of the free vibrations of a shell made of n cone segments joined together. Thin Walled Struct. 108, 416–427 (2016)
Sarkheil, S., Foumani, M.S., Navazi, H.M.: Free vibrations of a rotating shell made of p joined cones. Int. J. Mech. Sci. 124–125, 83–94 (2017)
Tong, L.: Free vibration of laminated conical shells including transverse shear deformation. Int. J. Solids Struct. 31, 443–456 (1994)
Wu, C.P., Lee, C.V.: Differential quadrature solution for the free vibration analysis of laminated conical shells with variable stiffness. Int. J. Mech. Sci. 43, 1853–1869 (2001)
Shu, C.: Free vibration analysis of composite laminated conical shells by generalized differential quadrature. J. Sound Vib. 194, 587–604 (1996)
Kouchakzadeh, M.A., Shakouri, M.: Free vibration analysis of joined cross-ply laminated conical shells. Int. J. Mech. Sci. 78, 118–125 (2014)
Author information
Authors and Affiliations
Corresponding author
Additional information
Publisher's Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Appendix
Appendix
The partial differential operators :
Rights and permissions
About this article
Cite this article
Izadi, M.H., Hosseini-Hashemi, S. & Korayem, M.H. Analytical and FEM solutions for free vibration of joined cross-ply laminated thick conical shells using shear deformation theory. Arch Appl Mech 88, 2231–2246 (2018). https://doi.org/10.1007/s00419-018-1446-y
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00419-018-1446-y