نتایج جستجو برای: Inverse finite element method
تعداد نتایج: 1987337 فیلتر نتایج به سال:
the effect of the presence of perforations on he stresses of a plate is a problem which is of great interest in structural design and in the mathemattical theory of elasticity. among the many hole patterns that are likely to require consideration is the ring of equally spaced circular holes. the present worke investigates stress & strain analysis of a thin isotropic circular plate containing a ...
in this work, an inverse finite element formulation was modified for considering material anisotropy in obtaining blank shape and forming severity of deep drawn orthotropic parts. in this procedure, geometry of final part and thickness of initial blank sheet were known. after applying ideal forming formulations between material points of initial blank and final shape, an equation system was obt...
کامپکتون ها، سالیتون هایی با پهنای محدود هستند. معادلات(k(m,n به ازای مقادیر خاصی از m و n دارای جواب کامپکتون هستند. از جمله این معادلات، معادلات (k(2,2 و (k(3,3 است. به دلیل خاصیت شبه ذره ای کامپکتون ها، این امواج بسیار مورد توجه فیزیکدانان قرار گرفته اند. برای بررسی کامپکتون ها، روش های عددی بسیاری وجود دارد. یکی از این روش ها که می توان برای حل این معادلات از آن استفاده کرد، روش المان های م...
This is a review of the current state-of-the-art regarding particular approach to extraction (quasistatic) stress–strain relationship metallic sample from an indentation experiment. It based on application relatively high load (kN range) via large spherical indenter (?1 mm radius), followed by measurement indent profile. profile then used as target outcome for inverse finite element method (FEM...
In this paper, we describe a parallel solution scheme of inverse dynamics, and its application to flexible manipulators where elastic deformation and vibration normally occur in constituting link members. The scheme is developed by using the Finite Element Method (FEM), which evaluates the analyzed model in absolute Cartesian coordinates, with the equation of motion expressed in dimension of fo...
In this study, a scheme using the Finite Element Method (FEM) for calculating inverse dynamics is proposed and applied to openand closed-loop link mechanisms. In this scheme, the entire system is subdivided into discrete elements and evaluated as a continuum. A single-link structure of a pin joint and a rigid bar is expressed by using the Shifted Integration (SI) technique. The proposed scheme ...
We introduce an adaptive finite element method for computing electromagnetic guided waves in a closed, inhomogeneous, pillared three-dimensional waveguide at a given frequency based on the inverse iteration method. The problem is formulated as a generalized eigenvalue problems. By modifying the exact inverse iteration algorithm for the eigenvalue problem, we design a new adaptive inverse iterat...
in this article, vibration analysis of an euler-bernoulli beam resting on a pasternak-type foundation is studied. the governing equation is solved by using a spectral finite element model (sfem). the solution involves calculating wave and time responses of the beam. the fast fourier transform function is used for temporal discretization of the governing partial differential equation into a set ...
The task of the image reconstruction in Electrical Impedance Tomography (EIT) is highly ill-posed inverse problem. The level set method with the gradient technique is established model for our numerical problem. Interfaces between subdomains with constant conductivities are represented by the level set function. Moreover, only one function is needed to represent any numbers of phases. The itera...
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