Results 51 to 60 of about 54,888 (237)

A Lyapunov approach for the exponential stability of a damped Timoshenko beam [PDF]

open access: yesarXiv, 2022
In this technical note, we consider the stability properties of a viscously damped Timoshenko beam equation with spatially varying parameters. With the help of the port-Hamiltonian framework, we first prove the existence of solutions and show, by an appropriate Lyapunov function, that the system is exponentially stable and has an explicit decay rate ...
arxiv  

Forced Vibration of a Timoshenko Beam Subjected to Stationary and Moving Loads Using the Modal Analysis Method

open access: yesShock and Vibration, 2017
The modal analysis method (MAM) is very useful for obtaining the dynamic responses of a structure in analytical closed forms. In order to use the MAM, accurate information is needed on the natural frequencies, mode shapes, and orthogonality of the mode ...
Taehyun Kim, Ilwook Park, Usik Lee
doaj   +1 more source

The OÆSE endstation at BESSY II: operando X‐ray absorption spectroscopy for energy materials

open access: yesJournal of Synchrotron Radiation, EarlyView.
The OÆSE endstation at EMIL at the BESSY II synchrotron facility in Berlin allows real‐time investigation of energy materials through operando X‐ray absorption spectroscopy. The possibility to use soft, tender, and hard X‐rays combined with versatile operando sample environments enables the study of a wide range of energy materials under relevant ...
Raul Garcia-Diez   +15 more
wiley   +1 more source

Least-squares Smoothed Shape Functions for Constructing Field-Consistent Timoshenko Beam Elements

open access: yesCivil Engineering Dimension
This paper presents an approach for constructing field-consistent Timoshenko beam elements using least-squares smoothed (LSS) shape functions. The variational basis for shear strain redistribution is thoroughly explained, leading to the derivation of ...
Foek Tjong Wong   +3 more
doaj   +1 more source

Parameter identification in prestressed concrete beams by incremental beam–column equation and physics‐informed neural networks

open access: yesComputer-Aided Civil and Infrastructure Engineering, EarlyView.
Abstract This paper explores a novel methodology for identifying prestress force (and bending rigidity) from the perspective of static deflection methods and derives an incremental beam–column equation (iBCE) by elucidating the mechanisms underlying the long‐ and short‐term behaviors, with particular emphasis on a physical system that disregards long ...
Yifan Yang, Zengwei Guo, Zhiyuan Liu
wiley   +1 more source

Wave Transmission Analysis of Timoshenko Beam Junction with Mindlin Plates Connected in the Same Plane

open access: yes한국해양공학회지
Energy flow analysis (EFA) models that account for significant shear deformation and the rotatory inertia effects in out-of-plane motion are essential for performing reliable EFA of practical composite structures, such as large ships or offshore ...
Young-Ho Park
doaj   +1 more source

The Influence of Mass on Dynamic Response of Cracked Timoshenko Beam with Restrained End Conditions: The Truncated Theory

open access: yesApplied Mechanics
In this paper, the dynamic response of the Timoshenko cracked beam subjected to a mass is investigated. In turn, it is assumed that the beam has its ends restrained with both transverse and rotational elastic springs. Based on an alternative beam theory,
Maria Anna De Rosa   +5 more
doaj   +1 more source

IDENTIFICATION OF SECOND SPECTRUM OF A TIMOSHENKO BEAM USING DIFFERENTIAL TRANSFORM METHOD [PDF]

open access: yesJournal of Engineering Science and Technology, 2018
In the present work, the vibration characteristics of a Timoshenko beam are examined using Differential Transform Method (DTM) with the end conditions hinge-hinge, fix-hinge, fix-fix and fix-free. The frequencies are computed for the beam with the length
SHALI S., JAFARALI PAROL, NAGARAJA S. R.
doaj  

A Screw Theory of Timoshenko Beams

open access: yesJournal of Applied Mechanics, 2009
In this work, the classic theory of Timoshenko beams is revisited using screw theory. The theory of screws is familiar from robotics and the theory of mechanisms. A key feature of the screw theory is that translations and rotations are treated on an equal footing and here this means that bending, torsion, and extensions can all be considered together ...
X. Ding, J. M. Selig
openaire   +3 more sources

Seismic Design of Hybrid Coupled CLT Shear Walls with Steel Link Beams

open access: yesEarthquake Engineering &Structural Dynamics, Volume 54, Issue 6, Page 1520-1539, May 2025.
ABSTRACT This study proposes a seismic design method for hybrid coupled cross‐laminated timber (CLT) shear walls with steel link beams as the lateral load‐resisting system for mass timber buildings. A force‐based seismic design method was proposed as a preliminary design process to determine the primary structural components. To inform the selection of
Ben Moerman, Minghao Li, Tobias Smith
wiley   +1 more source

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