Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Znaleziono wyników: 3

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: numeryczne rozwiązanie

Sortuj według:

Ogranicz wyniki do:

Application of the Boundary Element Method using discretization in time for numerical solution of hyperbolic equation

Lupa M., Ładyga E.

Prace Naukowe Instytutu Matematyki i Informatyki Politechniki Częstochowskiej

2008

Vol. 7, nr 1

83-92

The hyperbolic equation (1D problem) supplemented by adequate boundary and initial conditions is considered. This equation is solved using the combined variant of the boundary element method. The problem is also solved in analytical way. The comparison of the results obtained by means of these two methods confirms the effectiveness and accuracy of the BEM.

Application of FDM for numerical solution of hyperbolic heat conduction equation

Majchrzak E., Mendakiewicz J.

Prace Naukowe Instytutu Matematyki i Informatyki Politechniki Częstochowskiej

2006

Vol. 5, nr 1

134-139

In the paper the algorithm of numerical solution of hyperbolic heat conduction equation is presented. The ex plicit and implicit variants of finite differences method are applied and the results of computations are shown.

On thermoviscoelastic wheel-rail contact problems

Chudzikiewicz A., Myśliński A.

Vibrations in Physical Systems

2004

Vol. 21

119--122

This paper is concerned with the numerical solution of wheel - rail rolling contact problems. The unilateral dynamic contact problem between a viscoelastic body and a rigid foundation is considered. The contact with Coulomb friction law occurs at a portion of the boundary of the body. The contact condition is described in velocities. The friction coefficient is assumed to be bounded and suitable small. A frictional heat generation and heat transfer across the contact surface as well as Archard's law of wear in contact zone are assumed. The equlibrium state of this contact problem is described by the coupled hyperbolic variational inequality of the second order and a parabolic equation. To solve numerically this contact problem we will decouple it into mechanical and thermal parts. Finite difference and finite element methods are used to discretize the contact problem. The Augmented Lagrangian technique combined with the active set method are employed to solve the discretized contact problem. Numerical examples are provided.