VIBRATION ANALYSIS OF THE EMBEDDED CO-CURING DAMPINGCOMPOSITE RING-OPENING STIFFENED CYLINDRICAL SHELLS

Abstract

Abstract: Based on the first-order shear deformation shell theory, the dynamic characteristics of the embedded co-curing damping composite ring-opening stiffened cylindrical shells are studied, and the stiffening ribbings are treated as discrete elements. The Rayleigh-Ritz energy method and Navier method are used to derive the strain energy and kinetic energy expression of the embedded co-curing damping composite ring-opening stiffened cylindrical shells, and the control equation of free vibration is established. The simulation results obtained by ANSYS modeling are used to verify the correctness of the formulas in this paper. Theoretically, the effects of different rib heights and damping sandwich layer thickness on the performance of the cylindrical shell are further discussed in this paper. The research conclusions have certain references for the design and application of lightweight, high stiffness and large damping composite structural members.

Key words: stiffened cylindrical shell, dynamic property, Rayleigh-Ritz method, natural frequency, loss factor

CLC Number:

TB332

WANG Guang-he, LIANG Sen, ZHOU Yun-fa, ZHENG Chang-sheng. VIBRATION ANALYSIS OF THE EMBEDDED CO-CURING DAMPINGCOMPOSITE RING-OPENING STIFFENED CYLINDRICAL SHELLS[J]. Composites Science and Engineering, 2020, 0(2): 54-61.

References

[1] 梁森, 梁磊, 米鹏. 嵌入式共固化复合材料阻尼结构的新进展. 应用力学学报, 2010, 27(4): 767-771.
[2] Mukherjee A, Mukhopadhyay M. A review of dynamic behavior of stiffened plates. The Shock and Vibration Digest, 1986, 18: 3-8.
[3] 杨加明, 钟小丹, 赵艳影. 复合材料夹杂双层粘弹性材料的应变能和阻尼性能分析. 工程力学, 2010, 27(3): 212-216.
[4] 徐超, 林松, 王立峰, 等. 基于Layerwise理论的共固化粘弹阻尼复合材料动特性分析. 振动与击, 2015, 34(1): 6-12.
[5] 李雪, 梁森, 梁天锡. 嵌入式共固化网格阻尼复合材料结构动力学性能. 四川兵工学报, 2016, 37(3): 132-137.
[6] Zhai Y C, Chai M J, Su J M, et al. Dynamics properties of composite sandwich open circular cylindrical shells.Composite Structures, 2018(189): 148-159.
[7] Su Z, Jin G Y, Ye T G. Free vibration analysis of moderately thick functionally graded open shells with general boundary conditions. Composite Structures, 2014(117): 169-186.
[8] Zhai Y C, Liang S. Optimal lay-ups to maximize loss factor of cross-ply composite plate. Composite Structures, 2017, 168: 597-607.
[9] 曹志远. 板壳振动理论. 北京: 中国铁道出版社, 1983.
[10] 肖汉林, 刘土光, 张涛, 等. 复合材料纵横加筋圆柱壳自由振动分析. 噪声与振动控制, 2005(6): 4-7, 47.
[11] Mi P, Liang S. A research on loss factor of embedded and co-cured composite damping structure. Advanced Material Research, 2012, 487(1): 593-597.
[12] Lee D M, Lee I. Vibration analysis of anisotropic plates with eccentric stiffeners. Computers&Structures, 1995, 57(1): 99-105.
[13] Chen A T, Yang T Y. Static and dynamic formulation of a symmetrically laminated beam finite element for a micro-computer. Journal of Composite Materials, 1985, 19(5): 459-475.
[14] Srinivas S, Rao A K. Bending, Vibration and buckling of simply supported thick orthotropic rectangular plates and laminates. Int J Solids Struct, 1970(6): 1463-1481.
[15] Sciuva M D. Bending, vibration and buckling of simply supported thick multilayered orthotropic plates: An evaluation of a new displacement model. Journal of Sound and Vibration, 1986, 105: 425-442.
[16] Chakrabarti A, Sheikh A H. Vibration of laminate-faced sandwich plate by a new refined element. Journal of Aerospace Engineerin, 2004, 17: 123-134.