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作者:

Zhang, Wei (Zhang, Wei.) | Chen, Jianen (Chen, Jianen.) | Wang, Qian (Wang, Qian.) | Sun, Min (Sun, Min.)

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EI Scopus

摘要:

The nonlinear trends of composite laminated plates are investigated. The governing equations of motion for the plate are derived with the von Karman strain-displacement relations for the geometric nonlinearity and the Reddy's third-order shear deformation plate theory. The four dimensional nonlinear averaged equations with the case of 1/2-subharmonic resonance and principal parametric resonance for the first mode and primary resonance for the second mode are obtained by applying the method of multiple scales. The frequency-response curves are analyzed under consideration of strongly coupled of two modes. The influences of the coefficients in dynamic equations and the detuning parameters on the nonlinear trend are studied, and the results indicate that the composite laminated plate may have different trends of nonlinearity under aforementioned resonance conditions. The sweep experiment is conducted to find the softening and hardening nonlinearity. The different trends are obtained when the excitation amplitude is 1.2g. The spectrums of the different stages of the test show that the change of the nonlinear trend may be caused from the sub-harmonic resonance in this test. Copyright © 2012 by ASME.

关键词:

Control nonlinearities Resonance Nonlinear equations Frequency response Laminating Equations of motion Laminated composites

作者机构:

  • [ 1 ] [Zhang, Wei]College of Mechanical Engineering, Beijing University of Technology, Beijing100124, China
  • [ 2 ] [Chen, Jianen]College of Mechanical Engineering, Beijing University of Technology, Beijing100124, China
  • [ 3 ] [Wang, Qian]College of Mechanical Engineering, Beijing University of Technology, Beijing100124, China
  • [ 4 ] [Sun, Min]College of Mechanical Engineering, Beijing University of Technology, Beijing100124, China

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年份: 2012

期: PARTS A AND B

卷: 4

页码: 851-859

语种: 英文

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