Vibration analysis of perforated fiber reinforced damping composite beams

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Journal of Vibration and Shock ›› 2023, Vol. 42 ›› Issue (22) : 103-111.

SUN Ruijun，LIANG Sen，LIU Zhaoyang，LUO Hao，HU Zijian

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Abstract

Here, to study the dynamic behavior of embedded co-cured perforated fiber reinforced damping composite beams under simply supported boundary conditions, a theoretical model of free vibration of co-cured perforated damping composite beam was established and solved on the basis of first-order shear deformation theory (FSDT), Hamilton principle and the Navier solution method. Make perforation damping composite beam specimen and build test platform, using ANSYS numerical simulation and MATLAB theoretical simulation analysis method to verify the effectiveness of the theoretical model and method, and the effects of design parameters on the dynamic performance of embedded co-cured perforated fiber reinforced damping composite beam was studied by using the verified theoretical model and method. The model and method in this paper provide a theoretical basis for the study of embedded co-cured discontinuous damping composite structures and a reference for the design and manufacture of structures.

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perforated fiber reinforced damping / simply supported boundary / free vibration / modal tests / numerical simulation / performance of dynamics

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SUN Ruijun，LIANG Sen，LIU Zhaoyang，LUO Hao，HU Zijian. Vibration analysis of perforated fiber reinforced damping composite beams[J]. Journal of Vibration and Shock, 2023, 42(22): 103-111

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