Results 41 to 50 of about 22,237,137 (269)

About the stability to Timoshenko system with pointwise dissipation

Discrete and Continuous Dynamical Systems - S, 2022
<p style='text-indent:20px;'>In this paper we study the Timoshenko model over the interval <inline-formula><tex-math id="M1">\begin{document}$ (0, \ell) $\end{document}</tex-math></inline-formula> with pointwise dissipation at <inline-formula><tex-math id="M2">\begin{document}$ \xi\in (0, \ell) $\end{document ...
Rivera, Jaime E. Muñoz, Naso, Maria Grazia   +1 more
openaire   +2 more sources

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

Shock 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

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

Numerical 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

The stability number of the Timoshenko system with second sound

Journal of Differential Equations, 2012
AbstractIn this work, we consider the Timoshenko beam model with second sound. We introduce a new number χ0 that characterizes the exponential decay. We prove that the corresponding semigroup associated to the system is exponentially stable if and only if χ0=0. Otherwise there is a lack of exponential stability. In this case we prove that the semigroup
Mauro Santos, D. S. Almeida Júnior, J.E. Muñoz Rivera   +2 more
openaire   +2 more sources

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

Advanced 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, Janis Timoshenko, Andrea Martini, Hyo Sang Jeon, Eduardo Ortega, Martina Rüscher, Arno Bergmann, Aram Yoon, Uta Hejral, Antonia Herzog, Clara Rettenmaier, Felix T. Haase, Philipp Grosse, Beatriz Roldan Cuenya   +13 more
wiley   +1 more source

Controller design and stability analysis of Timoshenko beam with input delay

Journal 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

An approach for dynamic analysis of steel plate shear wall systems

Građevinar, 2022
In this paper, the Timoshenko beam model (continuous system model) is originally adapted for dynamic analysis of steel plate shear wall (SPSW) systems.
Yasin Gungor, Kanat Burak Bozdogan
doaj   +1 more source

Anisotropic Shear Properties of Organic Interfaces in Bio‐composite Materials

Advanced 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, Benny Bar‐On, Igor Zlotnikov   +2 more
wiley   +1 more source

Metastable Crystalline Cobalt Iron Oxide Nano‐Flakes with Antiferromagnetic/Ferrimagnetic Composition Mosaicity

Angewandte Chemie, EarlyView.
Through precursor co‐precipitation and mild calcination, a metastable interface‐rich cobalt iron oxide with unique magnetic properties was synthesized. Due to compression of the lattice parameter in the iron‐rich phase and the multitude of interfaces, an exchange bias was created, usually not known for such powder samples.
Anna Rabe, Franz‐Philipp Schmidt, Shohreh Rafiezadeh, Soma Salamon, Joachim Landers, Mirco Eckhardt, Christoph Pratsch, Benedikt Beckmann, Felix Thomas Haase, David Kordus, Mauricio Lopez Luna, Clara Rettenmaier, Thomas Götsch, Axel Knop‐Gericke, Arno Bergmann, Janis Timoshenko, Beatriz Roldan Cuenya, Oliver Gutfleisch, Mirijam Zobel, Rossitza Pentcheva, Heiko Wende, Thomas Lunkenbein, Malte Behrens   +22 more
wiley   +2 more sources

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

Open 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