The dynamic performance of structures under traveling loads should be exactly analyzed to have a safe and reasonable structural design. Different higher-order shear deformation theories are proposed in this paper to analyze the dynamic stability of thick elastic plates carrying a moving mass. The displacement fields of different theories are chosen based upon variations along the thickness as c...

In this paper, the nonlinear dynamical behavior of an isotropic rectangular plate, simply supported on all edges under influence of a moving mass and as well as an equivalent concentrated force is studied. The governing nonlinear coupled PDEs of motion are derived by energy method using Hamilton’s principle based on the large deflection theory in conjuncture with the von-Karman strain-displacem...

Determination and analysis of vibration behavior of structures for at least first few natural frequencies and mode shapes needs several sensors to be connected at different non node points and exciting the structure at one point. Other method for determination of first few mode shapes is to excite several points of the structure at once and sensing the response from one point.  Both methods nee...

In this paper, the dynamic response of a viscoelastic beam subjected to a moving distributed load has been studied. The viscoelastic properties of the beam have been considered as linear standard model in shear and incompressible in bulk. The stress components have been separated to the shear and dilatation components and as a result the governing equations in viscoelastic form has been obtaine...

The generalized integral transform technique (GITT) is employed to obtain a hybrid analyt-ical–numerical solution for dynamic response of clamped axially moving beams. The use of the GITT approach in the analysis of the transverse vibration equation leads to a coupled system of second order differential equations in the dimensionless temporal variable. The resulting transformed ODE system is th...

A complete investigation on the free vibration and stability analysis of beams made of functionally graded materials (FGMs) containing open edge cracks utilizing four beam theories, Euler-Bernoulli, Rayleigh, shear and Timoshenko, is performed in this research. It is assumed that the material properties vary along the beam thickness exponentially and the cracked beam is modeled as two segments ...

In the present study, a finite element based numerical model is developed to evaluate heat transfer and fluid flow during laser welding process with moving source. The solves fully coupled equations of incompressible transfer. this beam involving non-oscillating oscillating compared both conditions under similar input per unit length i.e., same power speed. Dimensionless coefficients for mass t...

This paper presents a method for the dynamic modeling of parallel robots with flexible links and rigid moving platform based on finite element theory. The relation between elastic displacements of links is investigated, taking into consideration the coupling effects of elastic motion and rigid motion. The kinematic and dynamic constraint conditions of elastic displacements of flexible parallel ...

This paper presents a possible configuration for the production of hydrogen and anti-hydrogen from pbeam co-moving with ebeams merged in a long vacuum chamber. In such a configuration with a beam kinetic energy for the paround 100 KeV, the two key parameters are the density of the ebeam and the temperature of the merged beams. The production rate is computed for several parameter sets and it is...

This paper deals with a dynamic Euler-Bernoulli beam of infinite length subjected to moving concentrated Dirac mass. The relies on foundation composed continuous distribution linear elastic springs associated in parallel uniform Coulomb friction elements and viscous dampers. problem is stated distributional form, the existence uniqueness results are established by means combination $ {\rm{ L}} ...