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作者:

Zhang, Peiliang (Zhang, Peiliang.) | Li, Xinlei (Li, Xinlei.) | Wang, Jianfei (Wang, Jianfei.)

收录:

EI Scopus SCIE

摘要:

Bistable structures with the elastic instability caused by buckling are confirmed to perform significantly in microelectromechanical systems, metamaterials, energy harvester, vibration isolation and morphing structures. The target of this paper is to explore the dynamic responses of cross-ply bistable composite laminate, focusing on the nonlinear effect of the single- and double-well vibration. Both theoretical and finite element (FE) methods are employed to simulate the nonlinear vibration and dynamic snap-through of bistable composite laminate under the foundation excitation at the center. In the theoretical model, the governing equations are established via Lagrange's equation based on the first-order shear deformation theory, von Karman nonlinear straindisplacement relation and Rayleigh-Ritz method. The fourth-order Runge-Kutta method is adopted to solve the governing equations, and the numerical results are validated by FE model. Subsequently, the details of the dynamic responses are analyzed to identify the nonlinear effects in the form of bifurcation diagram, phase portrait, time history, Poincare maps and amplitude spectrum. The dynamic responses are examined for a series of excitation parameters in both time and frequency domain. Through fixed frequency and frequency sweep tests, the nonlinear phenomenon of the single- and double-well vibrations are analyzed including superharmonic resonance, stiffness softening, hysteresis phenomenon, various periodic and chaotic vibration. The diverse responses to external inputs contribute significantly to efficiently predicting mechanical behaviors in real-world conditions, thereby offering indispensable theoretical support for structural design applications.

关键词:

Time and frequency domain analysis Nonlinear effect Superharmonic resonance Dynamic response Bistable composite laminate

作者机构:

  • [ 1 ] [Zhang, Peiliang]Beijing Univ Technol, Beijing Key Lab Nonlinear Vibrat & Strength Mech S, Beijing 100124, Peoples R China
  • [ 2 ] [Li, Xinlei]Beijing Univ Technol, Beijing Key Lab Nonlinear Vibrat & Strength Mech S, Beijing 100124, Peoples R China
  • [ 3 ] [Wang, Jianfei]Beijing Univ Technol, Beijing Key Lab Nonlinear Vibrat & Strength Mech S, Beijing 100124, Peoples R China

通讯作者信息:

  • [Wang, Jianfei]Beijing Univ Technol, Beijing Key Lab Nonlinear Vibrat & Strength Mech S, Beijing 100124, Peoples R China;;

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来源 :

EUROPEAN JOURNAL OF MECHANICS A-SOLIDS

ISSN: 0997-7538

年份: 2024

卷: 109

4 . 1 0 0

JCR@2022

被引次数:

WoS核心集被引频次: 10

SCOPUS被引频次: 11

ESI高被引论文在榜: 0 展开所有

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中文被引频次:

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