Results 31 to 40 of about 2,600,449 (287)

Finite element reduced order models for nonlinear vibrations of piezoelectric layered beams with applications to NEMS [PDF]

open access: yes, 2012
This article presents a finite element reduced order model for the nonlinear vibrations of piezoelectric layered beams with application to NEMS. In this model, the geometrical nonlinearities are taken into account through a von Kármán nonlinear strain ...
O. Thomas   +5 more
core   +1 more source

Graphene-Based Systems for Enhanced Energy Storage

open access: yesE3S Web of Conferences, 2017
Extensive global research efforts have focused on the exploitation of graphene for enhanced energy storage. Novel graphene-based composite material electrodes have been developed, in many cases with reports of outstanding performance.
Amplianitis Aris   +8 more
doaj   +1 more source

Free Vibrations of a New Three-Phase Composite Cylindrical Shell

open access: yesAerospace, 2023
The novel concept of a functionally graded three-phase composite structure is derived from the urgent need to improve the mechanical properties of traditional two-phase composite structures in aviation.
Tao Liu   +3 more
doaj   +1 more source

Molecular Dynamic Simulation of Defective Graphene Nanoribbons for Tension and Vibration

open access: yesNanomaterials, 2022
As deformation and defects are inevitable during the manufacture and service of graphene resonators, comprehensive molecular dynamic (MD) simulations are performed to investigate the vibrational properties of the defective single-layer graphene sheets ...
Jia-Jia Mao   +3 more
doaj   +1 more source

Numerical modelling of ground borne vibrations from high speed rail lines on embankments [PDF]

open access: yes, 2013
A three dimensional numerical model is presented capable of modelling the propagation and transmission of ground vibration in the vicinity of high speed railways.
Giannopoulos, A   +5 more
core   +1 more source

Nonlinear Dynamics of Imperfect FGM Conical Panel

open access: yesShock and Vibration, 2018
Structures composed of functionally graded materials (FGM) can satisfy many rigorous requisitions in engineering application. In this paper, the nonlinear dynamics of a simply supported FGM conical panel with different forms of initial imperfections are ...
Yan Niu   +4 more
doaj   +1 more source

A Gimballed Control Moment Gyroscope Cluster Design for Spacecraft Attitude Control

open access: yesAerospace, 2021
This paper addresses the problem of singularity avoidance in a cluster of four Single-Gimbal Control Moment Gyroscopes (SGCMGs) in a pyramid configuration when used for the attitude control of a satellite by introducing a new gimballed control moment ...
Charalampos Papakonstantinou   +2 more
doaj   +1 more source

The Negative Poisson’s Ratio Ship Base Design and Vibration Isolation Performance Analysis

open access: yesApplied Sciences, 2021
This paper mainly studies the vibration isolation of negative Poisson’s ratio structure in the honeycomb base of ships. Based on the structure of the negative Poisson’s ratio structure, different laying methods and different cell structure are used to ...
Kun Pan   +3 more
doaj   +1 more source

Parametric Numerical Study and Multi-Objective Optimization of Composite Curing through Infrared Radiation

open access: yesApplied Mechanics
Composite curing through infrared radiation (IR) has become a popular autoclave alternative due to lower energy costs and short curing cycles. As such, understanding and measuring the effect of all parameters involved in the process can aid in selecting ...
Petros Gkertzos   +3 more
doaj   +1 more source

Dynamics of Structures with Distributed Gyroscopes: Modal Discretization Versus Spatial Discretization

open access: yesApplied Sciences, 2019
In this study, two discretization numerical methods, modal discretization and spatial discretization methods, were proposed and compared when applied to the gyroscopic structures.
Xiao-Dong Yang   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy