Free vibration analysis of functionally graded carbon nanotubes reinforced double plates

Mechanics Based Design of Structures and Machines, Journal Year: 2024, Volume and Issue: 52(7), P. 4211 - 4240

Published: Feb. 5, 2024

The specific objective of this study is to analyze the dynamics functionally graded carbon nanotubes (FGCNT) reinforced double plates. Connected via an elastic layer, plates have simply supported boundary conditions. In current study, three patterns, varying in thickness direction are considered, including uniformly distributed, O-pattern, and X-pattern. Following development coupled equations motion using Hamilton principle while considering influences subsequently solved utilizing a two-spatial-variable modal decomposition method. For verification purposes, developed compared simplified configurations provided existing studies. solution methodology verified through comparing against numerical results obtained from finite element method Both verifications shown very good agreement. Influences plates' dimensions, reinforcement, stiffness layer analyzed study. transverse-motion natural frequencies also identified, they follow decreasing trend as aspect ratio increases for all cases. fundamental lateral-motion axial-motion frequency follows similar increases. reinforcement effect on less obvious thinner An increase second series double-plate system. Among considered X-pattern provides largest frequencies.

Language: Английский

Nonlinear vibrations of three-phase composite truncated conical shells affected by complex factors under 1:1 internal resonance

Communications in Nonlinear Science and Numerical Simulation, Journal Year: 2024, Volume and Issue: 140, P. 108427 - 108427

Published: Oct. 31, 2024

Language: Английский