Results 21 to 30 of about 7,549 (163)

The Approximate Solution of the Nonlinear Exact Equation of Deflection of an Elastic Beam with the Galerkin Method

open access: yesApplied Sciences, 2022
Calculating the large deflection of a cantilever beam is one of the common problems in engineering. The differential equation of a beam under large deformation, or the typical elastica problem, is hard to approximate and solve with the known solutions ...
Chencheng Lian   +3 more
doaj   +1 more source

Solving Nonlinear Algebraic Equations [PDF]

open access: yes, 2016
As a reader of this book you are probably well into mathematics and often ‘‘accused’’ of being particularly good at ‘‘solving equations’’ (a typical comment at family dinners!). However, is it really true that you, with pen and paper, can solve many types of equations? Restricting our attention to algebraic equations in one unknown x, you can certainly
Svein Linge, Hans Petter Langtangen
openaire   +3 more sources

Algebraic Approach to Nonlinear Optimal Control Problems with Terminal Constraints: Sufficient Conditions for Existence of Algebraic Solutions

open access: yesSICE Journal of Control, Measurement, and System Integration, 2018
This paper studies nonlinear finite-horizon optimal control problems with terminal constraints, where all nonlinear functions are rational or algebraic functions.
Tomoyuki Iori   +2 more
doaj   +1 more source

Determination of Approximate Periods of Duffing-harmonic Oscillator

open access: yesWalailak Journal of Science and Technology, 2014
We introduced an analytical technique based on harmonic balance method (HBM) to determine approximate periods of a nonlinear Duffing-harmonic oscillator. Generally, a set of nonlinear algebraic equations are appeared when HBM is formulated.
Md. Alal HOSEN
doaj   +1 more source

A Modified Energy Balance Method to Obtain Higher-order Approximations to the Oscillators with Cubic and Harmonic Restoring Force [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2020
This article analyzes a strongly nonlinear oscillator with cubic and harmonic restoring force and proposes an efficient analytical technique based on the modified energy balance method (MEBM). The proposed method incorporates higher-order approximations.
Md Alal Hosen   +3 more
doaj   +1 more source

On discrete analogues of nonlinear implicit differential equations

open access: yesAdvances in Difference Equations, 2006
This paper deals with some classes of nonlinear implicit difference equations obtained via discretization of nonlinear differential-algebraic or partial differential-algebraic equations.
Anh Pham Ky, Loi Le Cong
doaj   +2 more sources

Algebraic computational methods for solving three nonlinear vital models fractional in mathematical physics

open access: yesOpen Physics, 2021
This research paper uses a direct algebraic computational scheme to construct the Jacobi elliptic solutions based on the conformal fractional derivatives for nonlinear partial fractional differential equations (NPFDEs). Three vital models in mathematical
Gepreel Khaled A., Mahdy Amr M. S.
doaj   +1 more source

A new analytical technique based on harmonic balance method to determine approximate periods for Duffing-harmonic oscillator

open access: yesAlexandria Engineering Journal, 2015
The Duffing-harmonic oscillator is a common model for nonlinear phenomena in science and engineering. In this paper, a new analytical technique has been presented to determine approximate periods of a strongly nonlinear Duffing-harmonic oscillator ...
Md. Alal Hosen, M.S.H. Chowdhury
doaj   +1 more source

Elimination and nonlinear equations of Rees algebras

open access: yesJournal of Algebra, 2010
A new approach is established to computing the image of a rational map, whereby the use of approximation complexes is complemented with a detailed analysis of the torsion of the symmetric algebra in certain degrees. In the case the map is everywhere defined this analysis provides free resolutions of graded parts of the Rees algebra of the base ideal in
Busé, Laurent   +2 more
openaire   +3 more sources

A Game—Theoretic Model for a Stochastic Linear Quadratic Tracking Problem

open access: yesAxioms, 2023
In this paper, we solve a stochastic linear quadratic tracking problem. The controlled dynamical system is modeled by a system of linear Itô differential equations subject to jump Markov perturbations.
Vasile Drăgan   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy