Parametric study on nonlinear vibration of composite truss core sandwich plate with internal resonance

• Published in: Journal of mechanical science and technology Vol. 30; no. 9; pp. 4133 - 4142
• Main Authors: Chen, Jianen, Zhang, Wei, Sun, Min, Yao, Minghui, Liu, Jun
• Format: Journal Article
• Language: English
• Published: Seoul Korean Society of Mechanical Engineers 01.09.2016; Springer Nature B.V; 대한기계학회
• Subjects: Carbon fiber reinforced plastics; Control; Dynamical Systems; Engineering; Equations of motion; Fiber composites; Frequency bands; Inclination angle; Industrial and Production Engineering; Laminated plate theory; Laminates; Mechanical Engineering; Nonlinearity; Oscillators; Parametric statistics; Plate theory; Shear deformation; Struts; Trusses; Vibration; Waveforms; 기계공학; Truss core sandwich plate; Composite; Zig-Zag theory; Internal resonance
• ISSN: 1738-494X; 1976-3824
• DOI: 10.1007/s12206-016-0825-y

Nonlinear vibrations of carbon fiber reinforced composite sandwich plate with pyramidal truss core are investigated. The governing equation of motion for the sandwich plate is derived by using a Zig-Zag theory under consideration of geometrically nonlinear. The natural frequencies of sandwich plates with different dimensions are calculated and compared with those obtained from the classic laminated plate theory and Reddy’s third-order shear deformation plate theory. The frequency responses and waveforms of the sandwich plate when 1:3 internal resonance occurs are obtained, and the characteristics of the internal resonance are discussed. The influences of layer number of face sheet, strut radius, core height and inclination angle on the nonlinear responses of the sandwich plate are analyzed. The results demonstrate that the strut radius and inclination angle mainly affect the resonance frequency band of the sandwich plate, and the layer number and core height not only influence the resonance frequency band but also significantly affect the response amplitude.