Free vibration of laminated cylindrical shells with functionally graded middle layer

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	Free vibration of laminated cylindrical shells with functionally graded middle layer
	Li, Shi-Rong; Fu, Xiao-Hua
	2008
会议日期	July 6, 2008 - July 10, 2008
会议地点	Daejeon, Korea, Republic of
关键词	Beams and girders Cylinders (shapes) Elastic moduli Functionally graded materials Laminating Natural frequencies Circular cylindrical shells Functionally graded Governing equations Homogeneous materials Laminated cylindrical shells Material parameter Radius-to-thickness ratio Thickness direction
卷号	2
页码	1553-1560
英文摘要	Free vibration of a laminated circular cylindrical shell is studied. The inner and the outer layers of the shell are comprised of the same homogeneous material but the middle layer is made of an functionally graded material whose Young's modulus varies either as a linear or as a quadratic function of the coordinate in the thickness direction. Governing equations for the vibration, in terms of the displacements in the radial, the circumferential and the axial directions, are derived on the bases of F Flugge's shell theory. Natural frequencies corresponding to different modes for different values of geometry parameters and the gradation of material properties are computed, and compared with those available in the literature. Characteristic relations between the natural frequency and the radius-to-thickness ratio are obtained for various values of material parameter. Effects of geometric, material parameters on the natural frequency are examined. Numerical results show that the natural frequency decreases with an increase in the radius/thickness ratio, and increases with an increase in the rigidity ratio.
会议录	15th International Congress on Sound and Vibration 2008, ICSV 2008
会议录出版者	International Institute of Acoustics and Vibrations
语种	英语
内容类型	会议论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/116565]
专题	理学院
作者单位	Department of Engineering Mechanics, Lanzhou University of Technology, Lanzhou, Gansu 730050, China
推荐引用方式 GB/T 7714	Li, Shi-Rong,Fu, Xiao-Hua. Free vibration of laminated cylindrical shells with functionally graded middle layer[C]. 见:. Daejeon, Korea, Republic of. July 6, 2008 - July 10, 2008.