On resonance behavior of sandwich conical shell

Abstract

Forced vibration is one of the essential behaviors of structures to predict the mechanical properties of various systems. Magneto-rheological (MR) or electro-rheological (ER) materials, due to many possible control-based applications, have gotten much attention in the oscillating system. Thus, in the present work, for the first time, the forced vibration of a conical shell made of three layers with an electrorheological (ER) core and reinforced composite with GPLs is investigated. The formulations are derived from the principle of Hamilton. With the aid of compatibility equations, the interfaces between the core and composite face sheets are simulated. The coupled hyperbolic differential quadrature method (HDQM) and Runge-Kutta solution procedure is employed to solve the coupled governing equations of the current system. The computational method’s accuracy is confirmed by comparing computed results with those available in the literature. The results show that the number, weight fraction, thickness, and pattern of composite layers, electric/magnetic field, and geometry of the conical panel have an important role in the central deflection and phase plot of the current sandwich structure.

Keywords:

• Forced oscillations
• MR/ER materials
• HDQM
• composite face sheet
• central deflection and phase plot

Disclosure Statement

No potential conflict of interest was reported by the author(s).