Results 11 to 20 of about 373,483 (293)

Finite element method for a nonlinear problem

open access: yesComputer Assisted Methods in Engineering and Science, 2023
We consider the nonlinear eigenvalue problem of a nonlinear partial differential equation under Dirichlet boundary condition in a two-dimensional space. The classical solutions are given for rectangular domains.
Gabriella Bognar
doaj  

A Godunov-Mixed Finite Element Method on Changing Meshes for the Nonlinear Sobolev Equations

open access: yesAbstract and Applied Analysis, 2012
A Godunov-mixed finite element method on changing meshes is presented to simulate the nonlinear Sobolev equations. The convection term of the nonlinear Sobolev equations is approximated by a Godunov-type procedure and the diffusion term by an expanded ...
Tongjun Sun
doaj   +1 more source

Nonlinear Stiffness Modeling Method for a Collaborative Robot

open access: yesJixie chuandong, 2021
A nonlinear stiffness modeling method for collaborative robots(Cobots) is proposed, which is combine the finite element analysis method (FEA) with the virtual joint method (VJM).
Song Wang   +4 more
doaj  

A finite point algorithm for soil water-salt movement equation

open access: yesAdvances in Difference Equations, 2021
In this paper, we propose the meshless finite point method for solving a type of fluid flow problem. The moving least square function is combined with the collocation method to treat nonlinear one- and two-dimensional soil water-salt movement equations ...
Fenhong Li   +3 more
doaj   +1 more source

New finite modelling of the nonlinear static bending analysis of piezoelectric FG sandwich plates resting on nonlinear elastic foundations

open access: yesComptes Rendus. Mécanique, 2022
This paper presents a new finite modelling of the nonlinear static bending analysis of piezoelectric functionally graded (FG) sandwich plates resting on nonlinear elastic foundations. Finite element formulations are derived by using the first-order shear
Giang, Nguyen Thi, Phuong, Doan Lan
doaj   +1 more source

Finite element method for solving nonlinear inverse diffusion problem

open access: yesپژوهش‌های ریاضی, 2021
In this paper, a numerical method based on the finite element method and the least square scheme with the Tikhonov regularization method for nonlinear inverse diffusion problem is presented.
Hamed Zeidabadi   +2 more
doaj  

Finite Element Method for a Nonlinear Differential Equation Describing Crystal Surface Growth

open access: yesMathematical Modelling and Analysis, 2014
In this paper, for a nonlinear differential equation describing crystal surface growth, the finite element method is presented. A nice order error estimates is derived by means of a finite element projection approximation.
Xiaopeng Zhao, Fengnan Liu, Bo Liu
doaj   +1 more source

The Effect of Diagonal Stiffeners on the Behaviour of Stiffened Steel Plate Shear Wall [PDF]

open access: yesComputational Engineering and Physical Modeling, 2018
In the current study, the nonlinear behavior of the stiffened steel plate shear wall with diagonal stiffeners is numerically studied. After nonlinear pushover analysis, the finite element modeling results are compared with un-stiffened and stiffened ...
Behtash Amiri   +2 more
doaj   +1 more source

Analysis of a Darcy-Cahn-Hilliard Diffuse Interface Model for the Hele-Shaw Flow and its Fully Discrete Finite Element Approximation

open access: yes, 2013
In this paper we present PDE and finite element analyses for a system of partial differential equations (PDEs) consisting of the Darcy equation and the Cahn-Hilliard equation, which arises as a diffuse interface model for the two phase Hele-Shaw flow. We
G., Steven Wise, Xiaobing Feng
core   +1 more source

Analysis of Vertical Stiffness of Air Spring Based on Finite Element Method

open access: yesMATEC Web of Conferences, 2018
In this paper, a finite element model of membrane air spring in the vehicle is established, and its vertical stiffness characteristics under a certain inflation pressure are analysed.
Ye Jiatong   +3 more
doaj   +1 more source

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