nonlinear-systems

There are 3 repositories under nonlinear-systems topic.

SciML / SimpleNonlinearSolve.jl
Fast and simple nonlinear solvers for the SciML common interface. Newton, Broyden, Bisection, Falsi, and more rootfinders on a standard interface.
bisection-method broyden-method falsi-method falsi-position newton-raphson nonlinear-dynamics nonlinear-solvers rootfinding differential-equations julia newton nonlinear-systems scientific-machine-learning sciml
Language:Julia 63
lantunes / netomaton
Automata on arbitrary networks, with Python
network-automata cellular-automata complex-systems nonlinear-systems discrete-dynamical-systems neural-network
Language:Python 50
yiqiangjizhang / Nonlinear-Systems-Chaos
Non-Linear Dynamic Systems
nonlinear nonlinear-systems logistic-regression stability euler-method fixed-point neuron-model laser adler pitchfork bifurcation-diagram lorenz-attractor lorenz-equation chaos chaotic-systems chaotic-dynamical-systems lyapunov-exponents henon-map
Language:MATLAB 21
kiankhaneghahi / Flexible-Joint-Manipulator-Observer-In-The-Form-Of-A-Stable-Neural-Network
In this project, an observer in the form of a stable neural network is proposed for any nonlinear MIMO system. As a result of experience, this observer utilizes a nonlinear in parameter neural network (NLPNN) which unlike LPNN, supports systems with higher degree of nonlinearity with no pre-knowledge of its dynamics. The learning rule for this neural network is based on the back-propagation method with a small modification. In addition, in order to guarantee the robustness of the observer, an e-modification term is added. Also, it is noted that there are no hard constraints like SPR on this method. Subsequently, the stability of this neural network observer is guaranteed by Lyapunov's direct method. At the end, the simulation results for a flexible-joint manipulator with this observer is demonstrated.
neural-network observer matlab simulink stability-analysis lyapunov-stability nonlinear-systems mimo-systems flexible-joint-manipulator backpropagation robustness control recurrent-neural-networks rbf-network
Language:MATLAB 15
MustafaLotfi / Optimized-Inverse-Dynamics-Controller
Obtaining the best coefficients of Inverse Dynamics Controller, for a dynamical system, with Optimization Algorithms.
pid optimization dynamic-system matlab metaheuristic-algorithms genetic-algorithm dynamic dynamic-model dynamic-modelling mass-spring-damper mass-spring-simulation inverse-dynamic-controller inverse-dynamics nonlinear-systems nonlinear-dynamics nonlinear-springs optimized-pid differential-equations
Language:MATLAB 15
PDAF
PDAF / PDAF
Parallel Data Assimilation Framework
data-assimilation ensemble-kalman-filter nonlinear-systems particle-filter uncertainty-quantification variational-method
Language:Fortran 15
kumiori / irrevolutions
Computing Irreversible Evolutions
energy evolutionary-algorithms fracture fracture-mechanics nonlinear-systems stability-analysis
Language:Jupyter Notebook 11
odesca / ODESCA
ODESCA is a MATLAB tool for the creation and analysis of dynamic systems described by ordinary differential equations
matlab ode nonlinear-systems nonlinear-control dynamic-systems ordinary-differential-equations control-systems control-theory controller observer simulink nonlinear optimal-control generic-programming system-analysis steady-state
Language:MATLAB 11
a-shakouri / Prescribed-time-control
This repository includes different versions of the prescribed-time controller as Simulink blocks and MATLAB script codes for engineering applications.
prescribed-time-control finite-time-control fixed-time-control nonlinear-control predefined-time-control nonlinear-systems nonasymptotic-control robotic-systems attitude-control-system attitude-dynamics robot-manipulator
9
forsolver
gha3mi / forsolver
ForSolver - linear and nonlinear solvers
fortran linear-system-solver newton-raphson solver fortran-package-manager nonlinear-systems complex-step-differentiation finite-difference-method newton-method quasi-newton-method
Language:Fortran 9
giomoretto / ECO
Model-based Calibration of Multiple Injections for a CI engine
calibration engineering internal-combustion-engine model-based-control nonlinear-optimization nonlinear-systems optimal-control
Language:MATLAB 9
a-shakouri / s-adrc
This repository includes some examples for the suboptimal active disturbance rejection controller (S-ADRC). The files are written in MATLAB and Simulink.
adrc disturbance-rejection disturbance-observer extended-state-observer suboptimal-control sdre-controller nonlinear-systems second-order-systems unknown-systems global-stability riccati-equation
5
SanketSarmalkar / Numerical_Methods
C++11 implementation of numerical algorithms described in Numerical Analysis by Richard L. Burden and J. Douglas Faires
cpp17 mathematics nonlinear-systems numerical-methods bisection-method fixed-point-method newton-method secant-method modified-newton-method curve-fitting divided-differences euler-method lagrange-interpolation numerical-differentiation numerical-integration gauss-methods regula-falsi-method taylor-method runga-kutta-method
Language:C++ 4
afvillaverde / NLcontrollability
MATLAB toolbox for analysing controllability and accessibility of nonlinear systems.
accessibility biosystems controllability geometric-control nonlinear-systems
Language:MATLAB 3
mxmayerr / nonlinear-dynamics
Repository for my Nonlinear Dynamics files
logistic-map newtons-method nonlinear nonlinear-dynamics nonlinear-systems python quadratic-equations tkinter
Language:Python 3
kiankhaneghahi / Classic-Sliding-Mode-Control-On-a-Third-Degree-System-With-3-Uncertain-Parameters
This project is about implementing the classic sliding mode method for controlling a third degree nonlinear system stated in the report that has 3 uncertain parameters. The first chapter is about designing the sliding mode controller and its parameters. And finally, the second chapter is devoted to simulation and its results. The results show that tracking was done perfectly but with the cost of creating the chattering phenomenon and a big overshoot in the initial moments for the control and error vectors.
sliding-mode-control classic-sliding-mode uncertainty nonlinear-systems fault-tolerance matlab simulink chattering
2
kiankhaneghahi / Lipschitz-Observer-Design-For-A-Nonlinear-System
In this project a rather brilliant observer called Thau observer or Lipschitz observer is proposed and designed to estimate the states of a special form of nonlinear systems. All the details regarding the observer design and its simulation are given in "Kian Khaneghahi - Fault Midterm - Q4.pdf" report file.
observer lipschitz-observer nonlinear-systems thau-observer matlab simulink state-estimation
Language:MATLAB 2
KurtButler / 2023-CCM-paper
Reproducible code for our paper, "On Causal Discovery with Convergent Cross Mapping"
attractors causal-inference causality chaos cross-mapping gaussian-processes nonlinear-systems state-space-model
Language:MATLAB 2
Multiphysics-contact-examples
ProductGuy2 / Multiphysics-contact-examples
Multiphysics modeling of nonlinear contact with Hexagon software
finite-element-simulations mechanical-simulation fea-package cae multiphysics python-fea cae-apps fea-english fea-program fea-programs fem-definition lib-fems mechanical-engineering-simulation product-suite simulation-apps contact nonlinear-systems nonlinearity nonlinear
2
solonso / MCT461-Nonlinear-Mechatronics-System-Kalman-filter-Analysis
Kalman filtering is a powerful technique for estimating the state of nonlinear mechatronics systems from noisy measurements. Kalman filters have a wide range of applications in robotics, vehicle control, and aircraft control.
kalman-filter matlab mechatronic-systems nonlinear-systems simulink
Language:TeX 2
a-shakouri / nonlinear-optimal-control
In this repository, some numerical algorithms for solving the nonlinear optimal control problem are included written in MATLAB/Simulink.
nonlinear-optimization-algorithms nonlinear-systems numerical-algorithms optimal-control variation-of-extremals
1
ELEVEN
americocunhajr / ELEVEN
ELEVEN is a Matlab code for robust optimization and uncertainty quantification of an elevator brake system.
computational-mechanics computational-physics mechanics nonlinear-systems numerical-optimization robust-optimization structural-engineering uncertainty-quantification
Language:MATLAB 1
buntonj / polynomial_observers
Polynomial observers: a Savitzky-Golay filter for estimating the derivatives of an output signal, then using it to estimate the state of a nonlinear dynamical system.
python estimation nonlinear-systems savitzky-golay-filter
Language:Python 1
gnegrelli / identPy
Framework for parameter estimation of dynamic nonlinear models.
parameter-estimation nonlinear-systems electrical-engineering
Language:Python 1
hyeonbeenlee / cNN-DP
A novel neural network for effective learning of highly impulsive/oscillatory dynamic systems by jointly utilizing low-order derivatives
data-driven-model dynamics-simulation impulse-response nonlinear-dynamics surrogate-modelling surrogate-models chaotic-systems differential-equations nonlinear-systems
Language:Python 1
lucasvianav / numerical-analysis
This repository contains numerical methods for finding solutions of a nonlinear equation, as well as nonlinear and linear equations' systems.
numerical-analysis numerical-methods numerical-calculations numerical-algorithms nonlinear-equations linear-systems linear-system-solver nonlinear-systems
Language:Python 1
mschiffn / volterra_burgers
Evaluation of an analytical Volterra series solution to the Burgers equation
volterra burgers-equation fractional-steps matlab finite-difference-time-domain diffusion nonlinear-waves plane-wave analytical-solution nonlinear-systems volterra-series volterra-filter
Language:MATLAB 1
yubocai-poly / Reachability-Problem-of-ODE
Quadratization preprocessing for the reachability Problem of ODE
nonlinear-systems numerical-analysis ode-model reachability-analysis
Language:Jupyter Notebook 1
konstantlabs / notebooks
A collection of various scientific notebooks ✨
computer-vision control-systems linear-systems mathematics nonlinear-systems ode optimization pde
Language:Jupyter Notebook 0
lapkin25 / nonlinear-monot
Solving nonlinear coordinate-wise monotonic systems of algebraic equations
nonlinear-solvers nonlinear-systems numerical-analysis
Language:MATLAB 0
laurabarbara / forced-simple-pendulum
RK4 simulation of damped and driven simple pendulum to investigate chaotic behaviour of nonlinear systems.
chaotic-systems matplotlib matplotlib-pyplot nonlinear-systems numpy pendulum pendulum-simulation physics physics-simulation python python-3 python3 runge-kutta runge-kutta-methods scipy damped-driven-pendulum
Language:Python 0
GENERATING-FRACTALS-R
mab0205 / GENERATING-FRACTALS-R
By using nonlinear systems and R, algorithm that generate fractals in R
newton-fractals r nonlinear-systems
Language:R 0
mherkersdorf / Incremental-Dynamic-Space-Filling-Design
A Design of Experiment (DoE) / excitation signal design technique for the identification of nonlinear dynamic systems.
doe design-of-experiments machine-learning nonlinear-systems space-filling system-identification dynamic-systems
Language:MATLAB 0
Tamada4a / DasOptimization
Pure Java nonlinear equation solving and unconstrained optimization library migrated to gradle and jitpack
java java-library nonlinear-optimization nonlinear-solvers nonlinear-systems
Language:Java 0
bhanson10 / gbees
The "GBEES" repsository containes the codebase accompying the paper "State Estimation of Chaotic Trajectories: A Higher-Dimensional, Grid-Based, Bayesian Approach to Uncertainty Propagation" presented at the January 2024 AIAA/AAS Space Flight Mechanics Meeting.
astrodynamics nonlinear-systems state-estimation uncertainty-propagation
Language:C
komyak9 / CompMathLab2
Nonlinear equations (Bisection and Secant methods), Nonlinear system (Fixed-point iteration)
computational-mathematics console-application csharp nonlinear-equations nonlinear-systems
Language:C#

nonlinear-systems

SciML / SimpleNonlinearSolve.jl

lantunes / netomaton

yiqiangjizhang / Nonlinear-Systems-Chaos

kiankhaneghahi / Flexible-Joint-Manipulator-Observer-In-The-Form-Of-A-Stable-Neural-Network

MustafaLotfi / Optimized-Inverse-Dynamics-Controller

PDAF / PDAF

kumiori / irrevolutions

odesca / ODESCA

a-shakouri / Prescribed-time-control

gha3mi / forsolver

giomoretto / ECO

a-shakouri / s-adrc

SanketSarmalkar / Numerical_Methods

afvillaverde / NLcontrollability

mxmayerr / nonlinear-dynamics

kiankhaneghahi / Classic-Sliding-Mode-Control-On-a-Third-Degree-System-With-3-Uncertain-Parameters

kiankhaneghahi / Lipschitz-Observer-Design-For-A-Nonlinear-System

KurtButler / 2023-CCM-paper

ProductGuy2 / Multiphysics-contact-examples

solonso / MCT461-Nonlinear-Mechatronics-System-Kalman-filter-Analysis

a-shakouri / nonlinear-optimal-control

americocunhajr / ELEVEN

buntonj / polynomial_observers

gnegrelli / identPy

hyeonbeenlee / cNN-DP

lucasvianav / numerical-analysis

mschiffn / volterra_burgers

yubocai-poly / Reachability-Problem-of-ODE

konstantlabs / notebooks

lapkin25 / nonlinear-monot

laurabarbara / forced-simple-pendulum

mab0205 / GENERATING-FRACTALS-R

mherkersdorf / Incremental-Dynamic-Space-Filling-Design

Tamada4a / DasOptimization

bhanson10 / gbees

komyak9 / CompMathLab2