نتایج جستجو برای: timoshenko beam

تعداد نتایج: 113423  

Journal: :Thermal Science 2021

An isotropic structure modelled as a Timoshenko beam is considered for the optimal vibration control problem. The model to be controlled described by distributed parameter system with selection of Timoshenko?s shear correction factor. Control vibrations achieved through function placed on boundary conditions. performance index which seeks minimized indicates that goal minimize magnitude measure...

2004
Travis L. Turner Hemant D. Patel

A thermomechanical model for shape memory alloy (SMA) actuators and SMA hybrid composite (SMAHC) structures has been recently implemented in the commercial finite element codes MSC.Nastran and ABAQUS. The model may be easily implemented in any code that has the capability for analysis of laminated composite structures with temperature dependent material properties. The model is also relatively ...

Journal: :journal of computational applied mechanics 0
mohammad zakeri school of civil engineering, college of engineering, university of tehran, tehran, iran reza attarnejad school of civil engineering, college of engineering, university of tehran, tehran, iran

free vibration analysis of higher-order shear deformation beam resting on one- and two-parameter elasticfoundation is studied using differential transform method (dtm) as a part of a calculation procedure. first,the governing differential equations of beam are derived in a general form considering the shear-freeboundary conditions (zero shear stress conditions at the top and bottom of a beam). ...

Journal: :Appl. Math. Lett. 2005
Carlos Alberto Raposo Jorge Ferreira Mauro de Lima Santos Nelson Nery de Oliveira Castro

In this paper we consider a linear system of Timoshenko type beam equations with frictional dissipative terms. We show the exponential decay of the solution by using a method developed by Z. Liu and S. Zheng and their collaborators in past years. This method is very different from some others in the literature, such as the traditional energy method. It is our hope that the reader will find the ...

2009
Keivan Kiani Ali Nikkhoo Bahman Mehri

This paper presents a numerical parametric study on design parameters of multispan viscoelastic shear deformable beams subjected to a moving mass via generalized moving least squares method (GMLSM). For utilizing Lagrange’s equations, the unknown parameters of the problem are stated in terms of GMLSM shape functions and the generalized Newmarkscheme is applied for solving the discrete equations...

2011
Juan F. Ramirez

A simulation of a cantilever beam was carried out with the aim of comparing the performance of two mesh-free methods: element-free Galerkin and radial point interpolation methods. In this implementation, we use two different methods to set boundary conditions. The results were compared with the analytical solution of the cantilever problem using Timoshenko formulation [Tim70]. In the paper, we ...

2013
Ye-Wei Zhang Tian-Zhi Yang Jian Zang Bo Fang

In nanoscale structure sizes, the surface-to-bulk energy ratio is high and the surface effects must be taken into account. Surface effect plays a key role in accurately predicting the vibration behavior of nanostructures. In this paper, the wave behaviors of a single-walled carbon nanotube (CNT) conveying fluid are studied. The nonlocal Timoshenko beam theory is used and the surface effect is t...

Journal: :International Journal of Solids and Structures 2010

Journal: :Mathematical and Computer Modelling of Dynamical Systems 2004

Journal: :Journal of Mechanics of Materials and Structures 2012

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