Numerical differential equation

The motion equation of a onedegreeoffreedom system when subjected to earthquakes is usually not solved by analytic methods. This problem can only be solved through the time step method, when integrating differential equations. This paper is devoted to presenting a numerical solution for a seismic analysis problem of a highway bridge pier with high damping rubber bearings under earthquakes.
14p vimclaren 12102022 4 1 Download

(BQ) Ebook Quasilinear hyperbolic systems, compressible flows, and waves: Part 1 includes the following content: Chapter 1 hyperbolic systems of conservation laws; chapter 2 scalar hyperbolic equations in one dimension; chapter 3 hyperbolic systems in one space dimension; chapter 4 evolution of weak waves in hyperbolic systems.
142p runordie7 30082022 7 2 Download

(BQ) Ebook Quasilinear hyperbolic systems, compressible flows, and waves: Part 2 includes the following content: Chapter 5 asymptotic waves for quasilinear systems; chapter 6 selfsimilar solutions involving discontinuities; chapter 7 kinematics of a shock of arbitrary strength.
129p runordie7 30082022 7 2 Download

(BQ) Ebook Numerical recipes in Fortran 77: The art of scientific computing (Volume 1 of Fortran Numerical recipes) – Part 2 presents the following content: Fast fourier transform, fourier and spectral applications, statistical description of data, modeling of data, integration of ordinary differential equations, two point boundary value problems, integral equations and inverse theory, partial differential equations, lessnumerical algorithms.
484p runordie6 10082022 8 3 Download

In the paper "On the existence of fuzzy solutions for partial hyperbolic functional differential equations", we consider the boundary valued problems for fuzzy partial hyperbolic functional differential equations with local and integral boundary conditions. A new weighted metric is used to investigate the existence and uniqueness of fuzzy solutions for these problems in a complete fuzzy metric space. Our results are demonstrated in some numerical examples in which we use the same strategy as BuckleyFeuring to build fuzzy solutions from fuzzifying the deterministic solutions.
16p runordie3 27062022 11 1 Download

Lecture Power system stability  Lesson 1: Overview and Numeric Solution of Differential Equations provide students with knowledge about power system examples; major power grid components; threephase systems; synchronous electric grids; power system time frames;...
33p hanthienngao 15042022 13 1 Download

Lecture Power system stability  Lesson 2: Numeric Solution of Differential Equations provide students with knowledge about static versus dynamic analysis; slow versus fast dynamics; positive sequence versus full threephase; power flow versus dynamics; interactive simulation: powerworld dynamics studio (DS);...
42p hanthienngao 15042022 10 1 Download

Lecture Power system stability  Lesson 3: Numeric Solution of Differential Equations, Electromagnetic Transients provide students with knowledge about fourth urder RungeKutta; multistep methods; multistep motivation; numerical instability; stiff differential equations; trapezoidal linear case;...
32p hanthienngao 15042022 13 1 Download

In the mechanisms and machines operating at high speeds, the elastic vibration of links is inevitable. In this paper the dynamic modeling and controller design for a flexible fourbar mechanism are studied. The fully coupled nonlinear equations of motion are obtained by using the Lagrange’s equations with multipliers for constrained multibody systems. The resulting differentialalgebraic equations are solved using numerical methods. A simple PD controller is designed to reduce the influence of the elastic link on the desired motion.
5p cothumenhmong11 10052021 18 1 Download

The vibration of the composite stiffened cylindrical shell with piezoelectric layers subjected to shock wave is presented in this paper. The differential equations which describe the nonlinear oscillation dynamic of the shell are solved by the NewtonRaphson iterative method in combination with the Newmark direct integration method. Numerical results are solved for the structures subjected to the effect of shock wave in MATLAB software. On the basis of the program, the effect of piezoelectric and stiffener on the nonlinear oscillation of the cylindrical composite shell are considered.
12p cothumenhmong11 05052021 10 0 Download

Although the research direction on NSFD schemes for differential equations have achieved a lot ofresults shown by both quantity and quality of existing research works, realworld situations have always posednew complex problems in both qualitative study and numerical simulation aspects. On the other hand, there aremany differential models that have been established completely in the qualitative aspect but their correspondingdynamically consistent discrete models have not yet been proposed and studied
26p capheviahe29 17032021 17 0 Download

In this paper we present some numerical result for illustrating a theoretical results obtained in our investigation in the field of variational inequality problems with constraint in the form of operator equation involving monotone operator.
6p larachdumlanat127 20122020 14 1 Download

In this work our objective is to understand the failure behaviour of unreinforced masonry under inplane cyclic loading. For this purpose we proposed a plasticity based interface model consists of a single yield surface criteria which is a direct extension of Mohr–Coulomb criteria with a tension cut and compression cap and a back stress vector is introduced as a mixed hardening law variable in the adopted yield surface to capture the unloading/reloading behaviour of masonry under cyclic loading.
16p trinhthamhodang9 10122020 10 0 Download

In this paper, we propose and discuss numerical algorithms for solving a class of nonlinear differentialalgebraic equations (DAEs). These algorithms are based on halfexplicit RungeKutta methods (HERK) that have been studied recently for solving strangenessfree DAEs. The main idea of this work is to use the halfexplicit variants of some wellknown embedded RungeKutta methods such as RungeKuttaFehlberg and DormandPrince pairs. Thus, we can estimate local errors and choose suitable stepsizes accordingly to a given tolerance.
16p trinhthamhodang9 10122020 13 0 Download

. In the pilesoil model, the lateral load is located at the pile head including both lateral force and bending moment. The single pile is considered as a beam on elastic foundation while shear beams model the soil column below the pile toe. The differential equations governing pile deflections are derived based on the energy principles and variational approaches.
14p cothumenhmong8 04112020 8 0 Download

In present time significant attention has been given to study noninteger order partial differential equations. The current article is devoted to find numerical solutions to the following class of time–space fractional partial differential.
10p dayhoctainha 10092020 18 1 Download

Motivated by the fact that the fractional Laplacean generates a wider choice of the interpolation curves than the Laplacean or biLaplacean, we propose a new nonlocal partial differential equation inspired by the CahnHilliard model for recovering damaged parts of an image. We also note that our model is linear and that the computational costs are lower than those for the standard CahnHilliard equation, while the inpainting results remain of high quality.
10p dayhoctainha 10092020 14 0 Download

In this paper, we investigate the existence, uniqueness and stability of periodic solution of new integrodifferential equations depended on special function with singular kernels.
15p lucastanguyen 01062020 10 0 Download

This paper presents a numerical solution for vibration analysis of cantilevered nonuniform trapezoidal thick plates. Based on the first shear deformation theory, kinetic and strain energies of the plate are derived and using Hamilton's principle, governing equations and boundary conditions are derived.
22p tohitohi 19052020 14 0 Download

Ebook Calculus begins with four diagnostic tests, in basic algebra, analytic geometry, functions, and trigonometry; overview of the subject and includes a list of questions to motivate the study of calculus; from the beginning, multiple representations of functions are stressed: verbal, numerical, visual, and algebraic. A discussion of mathematical models leads to a review of the standard functions, including exponential and logarithmic functions, from these four points of view.
1340p huutuanbc1 13042020 14 1 Download