Results 21 to 30 of about 372,861 (293)
The Effect of Diagonal Stiffeners on the Behaviour of Stiffened Steel Plate Shear Wall [PDF]
Computational 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
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The Hellan-Herrmann-Johnson Method for Nonlinear Shells
, 2019 In this paper we derive a new finite element method for nonlinear shells. The Hellan-Herrmann-Johnson (HHJ) method is a mixed finite element method for fourth order Kirchhoff plates.
Neunteufel, Michael, Schöberl, Joachim
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Analysis of Vertical Stiffness of Air Spring Based on Finite Element Method
MATEC 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
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Nonlinear finite element calculations in problems of strength of lifting-transport machines [PDF]
Научно-технический вестник Брянского государственного университета, 2016 The main approaches to lifting-transport machines simulation by finite elements method are under consideretion in this article. Contains general provisions for performing nonlinear finite element calculations of load-bearing metal structures of handling ...
Titov N.A.
doaj
A Two-Grid Finite Element Method for a Second-Order Nonlinear Hyperbolic Equation
Abstract and Applied Analysis, 2014 We present a two-grid finite element scheme for the approximation of a second-order nonlinear hyperbolic equation in two space dimensions. In the two-grid scheme, the full nonlinear problem is solved only on a coarse grid of size H.
Chuanjun Chen, Wei Liu, Xin Zhao
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Extended Kalman Filter Nonlinear Finite Element Method for Nonlinear Soft Tissue Deformation
Computer Methods and Programs in Biomedicine, 2021 Soft tissue modelling is crucial to surgery simulation. This paper introduces an innovative approach to realistic simulation of nonlinear deformation behaviours of biological soft tissues in real time.This approach combines the traditional nonlinear finite-element method (NFEM) and nonlinear Kalman filtering to address both physical fidelity and real ...
Hujin Xie +5 more
openaire +3 more sources
A Q‐Learning Algorithm to Solve the Two‐Player Zero‐Sum Game Problem for Nonlinear Systems
International Journal of Adaptive Control and Signal Processing, Volume 39, Issue 3, Page 566-581, March 2025.A Q‐learning algorithm to solve the two‐player zero‐sum game problem for nonlinear systems. ABSTRACT This paper deals with the two‐player zero‐sum game problem, which is a bounded L2$$ {L}_2 $$‐gain robust control problem. Finding an analytical solution to the complex Hamilton‐Jacobi‐Issacs (HJI) equation is a challenging task.
Afreen Islam +2 more
wiley +1 more source
A nonlinear local equivalent stress method in stress analysis of concrete gravity dam
Results in Physics, 2019 When the stress state of the structure is analyzed by the finite element method (FEM), the stress at the stress concentration points such as the dam’s heel and toe gets infinitely larger as the element size decreases.
Nam-Hyok Ri +5 more
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The Vanishing Moment Method for Fully Nonlinear Second Order Partial Differential Equations: Formulation, Theory, and Numerical Analysis [PDF]
, 2011 The vanishing moment method was introduced by the authors in [37] as a reliable methodology for computing viscosity solutions of fully nonlinear second order partial differential equations (PDEs), in particular, using Galerkin-type numerical methods such
Feng, Xiaobing, Neilan, Michael
core
International Journal of Adaptive Control and Signal Processing, EarlyView.This paper proposes two projector‐based Hopfield neural network (HNN) estimators for online, constrained parameter estimation under time‐varying data, additive disturbances, and slowly drifting physical parameters. The first is a constraint‐aware HNN that enforces linear equalities and inequalities (via slack neurons) and continuously tracks the ...
Miguel Pedro Silva
wiley +1 more source