Nonlinear Dynamics

The package contains a simulink model of a mechanism which verify the angle of the road and adjust the torques by giving a angle to a plate located under the load session.this model is not a very complicated one and would be useful to whom want to:1.get familiar with control designs specially PID...

Solves nonlinear diffusion equation which can be linearised as shown for the general nonlinear diffusion equation in Richtmyer & Morton [1]. The approach is to linearise the pde and apply a Crank-Nicolson implicit finite difference scheme to solve the equation numerically.Matlab run...

Golden Section search for minimizing a nonlinear function in one dimensionDavidon-Fletcher-Powell (DFP) method. This is a method to solve an unconstrained nonlinear program


Platforms: Matlab

Single tank system nonlinear model was develop & finding the operating point of it using script file of the matlab with solving of ode for it and ploting the response


Platforms: Matlab

The proportional, integral and differential terms of PID control are modified by simple nonlinear terms, depending on the error.That makes the control faster, more precise and more robust.This was tested and proven at the control lab of the Munich University of Applied Science.


Platforms: Matlab

A Kirchhoff elliptic vortex is a 2D elliptical region (or d-deDUpatchd-deDt) of uniform vorticity embedded in an inviscid, incompressible and irrotational fluid. G. Kirchhoff showed that these are exact solutions to the nonlinear Euler equations in 1876.Subsequently, A. E. H. Love analyzed the...


Platforms: Matlab

PFMD performs a Molecular Dynamics simulation of some polarizable fluids at the liquid state by means of a dissociable potential. Supported molecules are H2O (water) and MX3, where M is a metal among Al, Fe, or Ga and X is a halogen among Cl, Br, or I.


Platforms: Windows, Mac, Linux

MATLAB fsolve is frequently used to solve nonlinear algebraic equation systems. This utility makes it simple. User enters initial guesses and equations. The equations will be solved automatically after user clicks the Run button. Residual values are also displayed for user to judge the quality of...


Platforms: PHP

Sparsity Recovery by Iterative Orthogonal Projections of Nonlinear MappingsA new regularization method for sparse representation based on a fixed-point iteration schema which combines two Lipschitzian-type mappings: an orthogonal projector and a nonlinear one for sparsity promotion.


Platforms: Matlab

Fire Dynamics Simulator (FDS) is a computational fluid dynamics (CFD) model of fire-driven fluid flow. The software solves numerically a form of the Navier-Stokes equations appropriate for low-speed, thermally-driven flow, with an emphasis on smoke and heat transport from fires.


Platforms: Mac

These MATLAB and Simulink files accompany the textbook "Atmospheric & Space Flight Dynamics-Modeling & Simulation with MATLAB & Simulink", Birkhauser, Boston, 2006 by Ashish Tewari.


Platforms: Matlab

FitChiTool provides an interface similar to the Curve Fitting Toolbox to the fitChiSquare function.This allows you to perform fits using chi-square when measurement errors are known on linear or nonlinear models. It allows allows you to perform fits with multiple independent (more than one x)...


Platforms: Matlab

L-BFGS-B is a collection of Fortran 77 routines for solving nonlinear optimization problems with bound constraints on the variables. One of the key features of the nonlinear solver is that the Hessian is not needed. I've designed an interface to the L-BFGS-B solver so that it can be called like...


Platforms: Matlab

The function The LMFnlsq.m serves for finding optimal solution of an overdetermined system of nonlinear equations in the least-squares sense. The standard Levenberg- Marquardt algorithm was modified by Fletcher and coded in FORTRAN many years ago (see the Reference). This version of LMFnlsq is...


Platforms: Matlab

This zip archive contains the spring-mass-damper models used for the webinar d-deDUTeaching System Dynamics with MATLAB & Simulink.d-deDt (Link to webinar: http://www.mathworks.com/wbnr56081) The models were used to demonstrate the modeling and simulation capability of MathWorks products and to...


Platforms: Matlab

Monopod hopperd-deOCt Ground modeldlTA Normal compliance modeldlTA Friction force modeld-deOCt Actuation modeldlTA Model of brushed DC motorsdlTA Ball screw and gearing modelsdlTA Springs and dampersd-deOCt Robot model and dynamics calculation routinesd-deOCt Energy calculation unitAnimations:


Platforms: Matlab

Lynch_Chaps.zip contains the MATLAB files, Simulink model files and a Tutorial Introduction to MATLAB for the new book, "Applications of Chaos and Nonlinear Dynamics in Engineering - Vol. 1". The book is published by Springer and edited by S.Banerjee, M.Mitra and L.Rondoni.


Platforms: Matlab

The forced Duffing oscillator exhibits behavior ranging from limit cycles to chaos due to its nonlinear dynamics. When the periodic force that drives the system is large, chaotic behavior emerges and the phase space diagram is a strange attractor. In that case the behavior of the system is...


Platforms: Matlab

The program computes the composition of benzene, toluene and p-xylene versus time in all column plates. The steady state values are plotted versus the plate number for all three components. This MATLAB program is adapted from an example given in Chemical Engineering Dynamics by Ingham et al.,...


Platforms: Matlab

The enclosed files provide a nonlinear algorithm for controlling dynamical systems, particularly in regimes where linear control methods often fail, such as the targeting of states that are distant in phase space from the system dynamics (e.g., a fixed point at the center of a limit cycle). Four...


Platforms: Matlab