Results 31 to 40 of about 2,060 (225)

Nonlinear boundary stabilization for Timoshenko beam system

open access: yesJournal of Mathematical Analysis and Applications, 2015
This paper is concerned with the existence and decay of solutions of the following Timoshenko system: $$ \left\|\begin{array}{cc} u"- (t) u+ _1 \displaystyle\sum_{i=1}^{n}\frac{\partial v}{\partial x_{i}}=0,\, \in \times (0, \infty),\\ v"- v- _2 \displaystyle\sum_{i=1}^{n}\frac{\partial u}{\partial x_{i}}=0, \, \in \times (0, \infty), \end ...
A.J.R. Feitosa   +2 more
openaire   +3 more sources

Dynamic Analysis of a Timoshenko Beam Subjected to an Accelerating Mass Using Spectral Element Method

open access: yesShock and Vibration, 2014
This paper presents formulations for a Timoshenko beam subjected to an accelerating mass using spectral element method in time domain (TSEM). Vertical displacement and bending rotation of the beam were interpolated by Lagrange polynomials supported on ...
Guangsong Chen, Linfang Qian, Qiang Yin
doaj   +1 more source

Sensing linear viscoelastic constitutive parameters with a Timoshenko beam on a multi-layer foundation: Modeling and simulation

open access: yesSensing and Bio-Sensing Research, 2015
We present a sensor model comprised of a Timoshenko beam coupled with a linear viscoelastic substrate via a distributed system of compliant elements. The system of governing equations includes the evolution of the kinematic descriptors of the Timoshenko ...
Javad Fattahi, Davide Spinello
doaj   +1 more source

Energy decay for Timoshenko systems of memory type

open access: yesJournal of Differential Equations, 2003
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ammar-Khodja, F.   +3 more
openaire   +3 more sources

CO2 Reduction on Copper‐Nitrogen‐Doped Carbon Catalysts Tuned by Pulsed Potential Electrolysis: Effect of Pulse Potential

open access: yesAdvanced Functional Materials, EarlyView.
This study demonstrates that pulsed potential electrolysis significantly improves CO2 reduction performance on copper‐nitrogen doped carbon electrodes. The formation of cationic copper sites and metallic clusters as a function of applied intermittent potential leads to notable selectivity changes compared to potentiostatic reduction.
Dorottya Hursán   +13 more
wiley   +1 more source

Vibration characteristics of axially loaded tapered Timoshenko beams made of functionally graded materials by the power series method [PDF]

open access: yesNumerical Methods in Civil Engineering, 2017
:In the present article, a semi-analytical technique to investigate free bending vibration behavior of axially functionally graded non-prismatic Timoshenko beam subjected to a point force at both ends is developed based on the power series expansions ...
M. Soltani
doaj   +1 more source

Anisotropic Shear Properties of Organic Interfaces in Bio‐composite Materials

open access: yesAdvanced Functional Materials, EarlyView.
A novel cantilever design enables direct probing of shear properties at single organic interfaces within biocomposite prismatic ultrastructures. By decoupling lateral and torsional shear responses, the method reveals isotropic behavior in Atrina vexillum and pronounced anisotropy in Unio pictorum.
Kian Tadayon   +2 more
wiley   +1 more source

Asymptotic behavior of solutions of a viscoelastic Shear beam model with no rotary inertia: General and optimal decay results

open access: yesOpen Mathematics
In this study, we consider a viscoelastic Shear beam model with no rotary inertia. Specifically, we study ρ1φtt−κ(φx+ψ)x+(g∗φxx)(t)=0,−bψxx+κ(φx+ψ)=0,\begin{array}{rcl}{\rho }_{1}{\varphi }_{tt}-\kappa {\left({\varphi }_{x}+\psi )}_{x}+\left(g\ast ...
Al-Mahdi Adel M.
doaj   +1 more source

Controller design and stability analysis of Timoshenko beam with input delay

open access: yesJournal of Hebei University of Science and Technology, 2018
In order to study the influence of input time delay on the stability of Timoshenko beam system and stabilize the Timoshenko beam system with input delay and load, by using the Backstepping method, a new controller is designed to compensate for the input ...
Rumeng HAN, Dongyi LIU
doaj   +1 more source

Stability of Timoshenko systems with past history

open access: yesJournal of Mathematical Analysis and Applications, 2008
The paper deals with linear one-dimensional integro-differential vibrating systems of the Timoshenko type with past history acting only in one equation. The authors show that the dissipation given by the history term is strong enough to produce the exponential stability of the considered systems if and only if the equations have the same wave speeds ...
Muñoz Rivera, Jaime E.   +1 more
openaire   +2 more sources

Home - About - Disclaimer - Privacy