نتایج جستجو برای: beam spring method
تعداد نتایج: 1769401 فیلتر نتایج به سال:
In this paper, propagation of flattend Gaussian beam in optical media is simulated by split step fourier method, ABCD matrix method, and paraxial group method, and results are compared. For this purpose, at first, flattend Gaussian beam, strongly nonlocal nonlinear media and investigation methods of propagation of optical beams are introduced. Then, propagation of flattend Gaussian beam in free...
Abstract Bonded contact models have been increasingly used in the discrete element method (DEM) to study cemented and sintered particulate materials recent years. Several popular DEM bond proposed literature; thus it is beneficial assess similarities differences between different before they are simulations. This paper identifies discusses two fundamental types of models: Spring Bond Model wher...
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in this paper, a crack localization method for euler-bernoulli beams via an efficient static data based indicator is proposed. the crack in beams is simulated here using a triangular variation in the stiffness. static responses of a beam are obtained by the finite element modeling. in order to reduce the computational cost of damage detection method, the beam deflection is fitted through a poly...
In this paper, the general governing equations of three-dimensional vibrations of an Euler-Bernoulli Beam under influences of system dynamics are derived by the Hamiltonian method. Then two fundamental cases of a cantilever beam and a rotating beam are considered. The conventional methods for vibration suppression debit to expenses and make new problems such as control spillover because they ar...
The purpose of this paper is to clarify the mechanism shear strength reduction for reinforced concrete deep beams with varying stirrup ratios, due beam size increase. Three Dimensional Rigid-Body-Spring-Method was applied numerical tool. By using simulation results effective depth smaller than 1500 mm, dependence each resistance component such as arch, and truss actions were investigated, along...
The spring rates of a coiled helical spring under an axial force and an axially directed torque are derived by a consistent application of Castigliano’s second theorem, and it is shown that the coupling between the two loads may not always be neglected. The spring rate of an extensional spring is derived for the first time through the use of the displacement based principle of minimum total pot...
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