A Domain Decomposition Method for Forced Vibration Analysis of Joined Conical-cylindrical-spherical Shell
Based upon the Reissner-Naghdi-Berry shell theory,a semi-analytical domain decomposition method is presented to analyze the forced vibration of a joined conical-cylindrical-spherical shell with general boundary conditions.The joined shell was divided into some conical,cylindrical and spherical shell segments along the axis of revolution.The constraint equations derived from interface continuity conditions between two adjacent shell segments were introduced into the energy functional of the joined shell.Displacement variables of each shell segment are expressed as a mixed double series in the forms of Fourier series in the circumferential direction and Chebyshev orthogonal polynomial in the longitudinal direction.The forced vibration response of the joined shells subjected to various harmonic excitations and boundary conditions was calculated and compared with those FEM results obtained by finite element software ANSYS to confirm the reliability and accuracy of this analytical solution.
Domain decomposition Subdomain generalized variational principle Least-squares weighted residual method Joined conical-cylindrical-spherical shell Forced vibration
Shihao Wu Yegao Qu Hongxing Hua
The State Key Laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University,Shanghai 200240,China
国际会议
香港
英文
3-10
2012-07-27（万方平台首次上网日期，不代表论文的发表时间）