Results 71 to 80 of about 5,158,783 (295)

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

Advanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt, Varma Kvvssn, Hossein Laieghi, Zia Uddin, Peyman Ansari, E. Kıvanç Sadak, Can Barış Toprak, Hüseyin Kızıl, Enrico Salvati   +8 more
wiley   +1 more source

Nonlinear difference equations, bifurcations and chaos: An introduction [PDF]

Research in Economics, 2008
Abstract The aim of these lecture notes is to present a few mathematical facts about the bifurcations of nonlinear difference equations, in a concise and simple form that might be useable by economic theorists.
openaire   +3 more sources

SOUND SYNTHESIS OF GONGS OBTAINED FROM NONLINEAR THIN PLATES VIBRATIONS: COMPARISON BETWEEN A MODAL APPROACH AND A FINITE DIFFERENCE SCHEME [PDF]

, 2013
The sound of a gong is simulated through the vibrationsof thin elastic plates. The dynamical equations are necessarily nonlinear, crashing and shimmering being typicalnonlinear effects. In this work two methods are used tosimulate the nonlinear plates: a
Ducceschi, M., Ducceschi, Michele, Touzé, C., Bilbao, S., Bilbao, Stefan, Touze, Cyril   +5 more
core  

A Numerical–Experimental Approach for Multi‐Matrix Fiber‐Reinforced Plastics Characterization Using Finite Element Model Updating

Advanced Engineering Materials, EarlyView.
A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora, Tales V. Lisbôa, Axel Spickenheuer, Rogério J. Marczak, Jakson M. Vassoler   +4 more
wiley   +1 more source

Estimation for the region of attraction of nonlinear difference equations

Numerische Mathematik, 2002
The authors consider a system \(x(n+1)=Ax(n)+\varphi(x(n))\) of difference equations, where \(A\) is a square matrix and \(\varphi\) is continuous, \(\varphi(0)=0\). The main results of the paper are devoted to obtain some estimations for the region of attraction and the speed of convergence to the trivial solution.
Haydar Bulgak, Gennadii Demidenko
openaire   +4 more sources

Closed-Form Solutions of a Nonlinear Rational Second-Order Three-Dimensional System of Difference Equations

Mathematics
In this paper, we investigate the behavior of solutions to a nonlinear system of rational difference equations of order two, defined by xn+1=xnyn−1yn(a+bxnyn−1),yn+1=ynzn−1zn(c+dynzn−1),zn+1=znxn−1xn(e+fznxn−1), where n denotes a nonzero integer; the ...
Messaoud Berkal, Taha Radwan, Mehmet Gümüş, Raafat Abo-Zeid, Karim K. Ahmed   +4 more
doaj   +1 more source

Exact Solutions for Nonlinear Differential Difference Equations in Mathematical Physics

Abstract and Applied Analysis, 2013
We modified the truncated expansion method to construct the exact solutions for some nonlinear differential difference equations in mathematical physics via the general lattice equation, the discrete nonlinear Schrodinger with a saturable nonlinearity ...
Khaled A. Gepreel, Taher A. Nofal, Fawziah M. Alotaibi   +2 more
doaj   +1 more source

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

Advanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal, Michael M. Becker, Sarah C. L. Fischer   +2 more
wiley   +1 more source

Solving systems of nonlinear difference equations by the multiple scales perturbation method [PDF]

, 2012
In this paper, we apply an improved version of the multiple scales perturbation method to a system of weakly nonlinear, regularly perturbed ordinary difference equations.
W. T. Van Horssen, M. Rafei, Rafei, M. (author), Van Horssen, W.T. (author)   +3 more
core   +1 more source

Nontrivial Periodic Solutions for Nonlinear Second-Order Difference Equations

Discrete Dynamics in Nature and Society, 2011
This paper is concerned with the existence of nontrivial periodic solutions and positive periodic solutions to a nonlinear second-order difference equation.
Tieshan He, Yimin Lu, Youfa Lei, Fengjian Yang   +3 more
doaj   +1 more source