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Computer Assisted Mechanics and Engineering Sciences
EN In this paper, Trefftz polynomials are used for the development of FEM based on the reciprocity relations. Such reciprocity principles are known from the Boundary Element formulations, however, using the Trefftz polynomials in the reciprocity relations instead of the fundamental solutions yields the[...]
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Zeszyty Naukowe. Transport / Politechnika Śląska
2012 z. 76 67--74
PL Artykuł analizuje algorytmy optymalizacyjne pod kątem ich możliwości obliczeń równoległych oraz rozproszonych systemów obliczeniowych. Ukierunkowany jest przede wszystkim na algorytmy ewolucyjne oraz ich implementację równoległą. Jako platforma softwarowa do zastosowania rozproszonego systemu oblicz[...]
EN The aim of this paper is analysis of optimization algorithms in terms of their possible solutions in parallelization and distributed computing systems. Main goal is using of evolutionary algorithms and implementation of parallel algorithms. As the software platform for application of distributed opt[...]
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Zeszyty Naukowe. Transport / Politechnika Śląska
2018 z. 99 149--161
EN The aim of the paper is to present the computationally timeconsuming task of simulating the process of randomly oscillating thin-shell structures to realize an optimal design with limitations in terms of fatigue damage. The most important aim here is to design an effective optimization algorithm and[...]
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Machine Dynamics Research
EN The goal of the paper has been to present a computational simulation of the stress distribution in the surrounding of graphite particles. There were designed four algorithms for creation fields with random shape of graphite particles. Based on quantitative and qualitative evaluating of these algorit[...]
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Machine Dynamics Research
EN The given work is focused on the analysis of the eigenfreqencies and natural shapes as well as it is connected with stress distribution in the frequency area referring to the ductile cast iron with the spheroidal shape of graphite. The analysis was made with help of finite element method (FEM) in th[...]
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Machine Dynamics Research
EN The purpose of this paper is to present procedure of stress and strain distribution analyses at the testing sample. Experimental device is designed for combined bending - torque loading. Structural design of the equipment allows loading by constant turn of the clamping parts. The stress and strain m[...]
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Machine Dynamics Research
EN The goal of the paper was to present predictions of the fatigue lifetime of the large scale welded construction. The structural modelling and the stress-strain analysis were realised using finite element method. To determine the fatigue damage or the residual lifetime the "von Mises" equivalent stre[...]
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