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자료유형
학술저널
저자정보
Viswanathan, K.K. (Impact & Fatigue Fracture Lab., Department of Naval Architecture& Ocean Engineering, Inha University) Kim, Kyung Su (Impact & Fatigue Fracture Lab., Department of Naval Architecture& Ocean Engineering, Inha University) Lee, Jang Hyun (Impact & Fatigue Fracture Lab., Department of Naval Architecture& Ocean Engineering, Inha University) Lee, Chang Hyun (Impact & Fatigue Fracture Lab., Department of Naval Architecture& Ocean Engineering, Inha University) Lee, Jae Beom (Impact & Fatigue Fracture Lab., Department of Naval Architecture& Ocean Engineering, Inha University)
저널정보
테크노프레스 Structural engineering and mechanics : An international journal Structural engineering and mechanics : An international journal 제28권 제6호
발행연도
2008.1
수록면
749 - 765 (17page)

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Free axisymmetric vibrations of layered cylindrical shells of variable thickness are studied using spline function approximation techniques. Three different types of thickness variations are considered namely linear, exponential and sinusoidal. The equations of axisymmetric motion of layered cylindrical shells, on the longitudinal and transverse displacement components are obtained using Love's first approximation theory. A system of coupled differential equations on displacement functions are obtained by assuming the displacements in a separable form. Then the displacements are approximated using Bickley-spline approximation. The vibrations of two-layered cylindrical shells, made up of several types of layered materials and different boundary conditions are considered. Parametric studies have been made on the variation of frequency parameter with respect to the relative layer thickness, length ratio and type of thickness variation parameter.

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