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Numerical solution of parabolic problems with nonlocal boundary conditions

Čiegis, Raimondas; Tumanova, Natalija (Numerical Functional Analysis and Optimization, 2010)

In this article, the one-dimensional parabolic equation with three types of integral nonlocal boundary conditions is approximated by the implicit Euler finite difference scheme. Stability analysis is done in the maximum ...

Numerical solutions by using FNL model of complex shape concrete structures

Valentinavičius, Saulius; Šapalas, Antanas; Vasiliauskienė, Lina (WSEAS transactions on applied and theoretical mechanics, 2006)

Various methods a/calculation of physical non-linear systems under influence of modelling specific where investigated. Due the flexibility on modelling of complex shape structures by using composite material an incremental ...

Numerical solutions by using FNL model of complex shape concrete structures

Valentinavičius, Saulius; Šapalas, Antanas; Vasiliauskienė, Lina (Proceedings of the 2nd WSEAS International Conferences on applied and theoretical mechanics: Venice, Italy, November 20-22, 2006, 2006)

Various methods of calculation of physical non-linear systems under influence of modelling specific where investigated. Due the flexibility on modelling of complex shape structures by using composite material an incremental ...

Numerical stability analysis of solutions of PDEs

Čiegis, Raimondas; Čiegis, Remigijus (Computational methods in applied mathematics, 2004)

In this paper we investigate two iterative methods for solving one problem of nonlinear optics. The main goal is not only to find a stationary solution but also to investigate its stability. It is shown that both methods ...

Numerical stress analysis of granular material

Balevičius, Robertas; Markauskas, Darius (Mechanika, 2007)

From the experimental point of view, it is very difficult to obtain accurate stress measurements within the bulk of granular material. The numerical stress analysis based on the forces acting on the discrete particle was ...

Numerical study of cantilevers with non-uniform width for enhancing the performance of vibration-driven micropower generator based on piezoelectric conversion

Daukševičius, Rolanas; Kulvietis, Genadijus; Ostaševičius, Vytautas; Miglinienė, Ieva (Journal of Vibroengineering, 2011)

This study is dedicated to investigation of rectangular- and trapezoidal-shaped cantilevers for achieving improved efficiency of the piezoelectric micropower generator. [...]

Numerical study of powder flow nozzle for laser-assisted metal deposition

Petkevič, Romuald; Jočbalis, Giedrius; Steponavičiūtė, Ada; Stravinskas, Karolis; Romanov, Aleksej; Kačianauskas, Rimantas; Borodinas, Sergejus; Mordas, Genrik (Mathematics: Special Issue Numerical Analysis and Scientific Computing, 2021)

Metal additive manufacturing has received much attention in the past few decades, and it offers a variety of technologies for three-dimensional object production. One of such technologies, allowing large-sized object ...

Numerical study of tangential contact behaviour of spherical particle

Zabulionis, Darius; Kačianauskas, Rimantas; Markauskas, Darius (19th international conference on computer methods in mechanics CMM-2011 : 9-12 May 2011, Warsaw, Poland : short papers, 2011)

Numerical study of the tangential contact behaviour of the elastic frictional spherical particle is presented and the influence of numerical implementation procedures was studied. Tangential contact is assumed to follow ...

Numerical study of the aerodynamic parameters in a two-level multichannel cyclone

Baltrėnas, Pranas; Chlebnikovas, Aleksandras (Separation science and technology, 2016)

Research has been designed to analyse changes in the aerodynamic parameters of the single-phase air flow in a multi-channel cylindrical cyclone for separation of particular matter from the flow, involving the task of ...

Numerical study of the flow of pollutants during air purification, taking into account the use of eco-friendly material for the filter—mycelium

Vaišis, Vaidotas; Chlebnikovas, Aleksandras; Jasevičius, Raimondas (Applied sciences: Special issue: Air quality prediction based on machine learning algorithms II, 2023)

To improve air quality, it is customary to apply technological measures to isolate or retain pollutants by influencing the polluted stream in various ways to effectively remove the pollutants. One of the most commonly used ...

Numerical tests of steel beam-to-column semi-rigid connections

Urbonas, Kęstutis; Daniūnas, Alfonsas (Journal of civil engineering and management, 2003)

This paper presents an analysis of semi-rigid beam-to-column connections in which the beam is connected to column not at 90 degrees angle. Beam-to-column bolted end-plate connections that are subjected to pure bending were ...

Numerical thermo-mechanical study of elastic-plastic interaction of differently sized copper microparticles at high velocity

Jočbalis, Giedrius; Kačianauskas, Rimantas; Borodinas, Sergejus; Rojek, Jerzy (AIP Conference Proceedings: International conference of numerical analysis and applied mathematics ICNAAM 2021, 20–26 September 2021, Rhodes, Greece, 2023)

High-velocity interaction between particles and nonflat surfaces is relevant to processes occurring in additive manufacturing technologies such as cold spray. The study of the behavior of the material during a high-velocity ...

Numerical Thermomechanical Analysis Of High Strain Rate Impact Of Micro Particle

Jočbalis, Giedrius (2023)

The design of materials with desired properties is a challenge for most industries. It has become even more critical with the innovations in additive manufacturing (AM) and 3D printing technologies allowing for higher ...

Numerical treatment of educational chaos oscillator

Tamaševičius, Arūnas Vytautas; Juškevičius, Vidmantas; Pyragienė, Tatjana; Pyragas, Kęstutis (13th International IEEE Workshop on nonlinear dynamics of electronic systems (NDES 2005) : September 18th-22nd 2005 : University of Potsdam, Germany : abstracts, 2005)