Results 81 to 90 of about 10,394 (202)

Parallel Differential-Algebraic Equation Solvers for Power System Transient Stability Analysis

, 1993
Real-time or faster-than-real-time power system transient stability simulations will have significant impact on the future design and operations of both individual electrical utility companies and large interconnected power systems. The analysis involves
Kamala Anupindi, Anthony Skjellum, Geoffrey Fox, Paul Coddington   +3 more
core  

Heat exchanger network synthesis with detailed exchanger designs: Part 1. A discretized differential algebraic equation model for shell and tube heat exchanger design

, 2020
A new method for the detailed design of shell and tube heat exchangers is presented through the formulation of coupled differential heat equations, along with algebraic equations for design variables.
Kazi, Saif R., Michael Short, Biegler, Lorenz T., Short, Michael, Saif R. Kazi, Lorenz T. Biegler   +5 more
core   +1 more source

SubIval solver

, 2022
Solver for nonlinear fractional differential-algebraic ...
Marcin Sowa
core   +1 more source

A Mixed Causality Approach to Residual Generation Utilizing Equation System Solvers and Differential-Algebraic Equation Theory

, 2008
The FDI approach to model-based diagnosis is considered. We present a method for residual generation that combines integral and derivative causality, and also utilizes equation system solvers and theory of differential-algebraic equation systems.
Nyberg, Mattias, Svärd, Carl
core  

Structural-Analysis of Differential-Algebraic Equation Systems - Theory and Applications

, 1995
The choice of a feasible numerical method for the solution of a Differential-Algebraic Equation (DAE) model of general type F(z, z, u) = 0 requires knowledge about its solvability, index, number and type of dynamic degrees of freedom as well as the set ...
Kroner A, Unger J, Marquardt W
core  

Physical Information Neural Networks for Solving High-index Differential-algebraic Equation Systems Based on Radau Methods

, 2023
As is well known, differential algebraic equations (DAEs), which are able to describe dynamic changes and underlying constraints, have been widely applied in engineering fields such as fluid dynamics, multi-body dynamics, mechanical systems and control ...
Chen, Jiasheng, Lai, Shuai, Yang, Wenqiang, Tang, Juan, Yan, Ming, Lu, Jianguang, Liang, Kun   +6 more
core   +1 more source

An approximation technique for solving nonlinear oscillators

Journal of Low Frequency Noise, Vibration and Active Control
Recently, an approximation technique was presented for solving strong nonlinear oscillators modeled by second-order differential equations. Due to the arising of an algebraic complicity, the method fails to determine suitable solution of some important ...
Md Ashraful Huq, M Kamrul Hasan, MS Alam
doaj   +1 more source

Modeling of Soliton Behavior in Nonlinear Transmission Line Systems

Mathematics
This study focuses on the nonlinear partial differential equation known as the Lonngren wave equation, which plays a significant role in plasma physics, nonlinear wave propagation, and astrophysical research.
Sadia Medhit, Beenish, Fehaid Salem Alshammari, Isha Bukhar   +3 more
doaj   +1 more source

Hamiltonian and recursion operators for a discrete analogue of the Kaup-Kupershmidt equation [PDF]

Open Communications in Nonlinear Mathematical Physics
In this paper we study the algebraic properties of a new integrable differential-difference equation. This equation can be seen as a deformation of the modified Narita-Itoh-Bogoyavlensky equation and has the Kaup-Kupershmidt equation in its continuous ...
Edoardo Peroni, Jing Ping Wang
doaj   +1 more source

Algebroid Solutions of Second Order Complex Differential Equations

Abstract and Applied Analysis, 2014
Using value distribution theory and maximum modulus principle, the problem of the algebroid solutions of second order algebraic differential equation is investigated. Examples show that our results are sharp.
Lingyun Gao, Yue Wang
doaj   +1 more source