Autor: Rauch, M. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Hybrid system for modeling and optimization of production chain in metal forming
Autorzy:: Rauch, L.
Madej, L.
Pietrzyk, M.
Powiązania:: https://bibliotekanauki.pl/articles/1429405.pdf
Data publikacji:: 2008
Wydawca:: Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:: optimization
modelling
production chain
metal forming
Opis:: The paper presents design and implementation of the hybrid system, which is the part of investigation focused on application of multiscale modeling in simulation of real industrial processes. The hybrid system is dedicated to support production processes based on metal forming, by using artificial intelligence and optimization algorithms. The proposed system is based on the multilayer architecture and consists of several functional components responsible for management of production process, modeling and simulations and, finally, optimization. The latter module aims at searching for optimial parameters of selected production processes, which form production chain, i.e. rod rolling and cold forging. Optimization is performed using results obtained from multiscale modeling calculations. Then, the optimized approach is passed directly to the configuration and control centre of the real industrial process as a feedback to obtain better quality of products employing lower costs of manufacturing. Moreover, the hybrid system is designed to exchange information with other external systems implemented inside an enterprise e.g. ERP and its modules. The internal structure of presented system is described in the paper, as well as measurable advantages of hybrid system application to real environment.
Źródło:: Journal of Machine Engineering; 2008, 8, 2; 14-22
1895-7595
2391-8071
Pojawia się w:: Journal of Machine Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: System for Flexible Modelling of Production Cycles Based on Flat Rolling
Autorzy:: Rauch, L.
Madej, L.
Golab, R.
Pietrzyk, M.
Powiązania:: https://bibliotekanauki.pl/articles/971267.pdf
Data publikacji:: 2009
Wydawca:: Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:: separated modelling
integrated modelling
technology design
rolling
optimization
Opis:: The paper presents design and implementation of computer system dedicated to simulation of production cycles based on the rolling processes. The main functionality of the computer system, i.e. support and facilitation of flat rolling technology design, is obtained through flexible interface combined with the modular architecture of numerical library and optimization procedures. Each production cycle (e.g. heating, rolling, cooling, coiling) is prepared to be calculated separately and finally integrated into the sophisticated production cycle. The architecture of designed software as well as models used for numerical calculations are described in details.The system was tested for various configurations of rolling mills. Three of them together with obtained results are presented in the paper: complex production cycle (roughing and finishing rolling), finishing rolling composed of seven passes and laboratory case study.
Źródło:: Journal of Machine Engineering; 2009, 9, 4; 39-48
1895-7595
2391-8071
Pojawia się w:: Journal of Machine Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Application of Numerical and Physical Simulation to Design of the Best Manufacturing Technology for Fasteners
Zastosowanie numerycznej i fizycznej symulacji do projektowania najlepszej technologii wytwarzania elementów złącznych
Autorzy:: Kusiak, J.
Skóra, M.
Rauch, Ł.
Szeliga, D.
Pietrzyk, M.
Powiązania:: https://bibliotekanauki.pl/articles/352669.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: forging
fasteners
optimization
kucie
łączniki
optymalizacja
Opis:: The development of the best manufacturing technology for fasteners was the subject of this work. Physical and numerical simulations were used to evaluate various technological variants. Possibility of application of new generation bainitic steels was considered, as well. Improvement of exploitation properties was the objective of the optimization having in mind tool wear and manufacturing costs as constraints. Several fasteners were investigated but results for three parts, including Allen screw, screw anchors used to carry concrete plates are presented as a case study. Industrial trials were performed and confirmed correctness of the designed manufacturing technology.
Przedmiotem pracy była metodyka projektowania najlepszej technologii wytwarzania elementów złącznych. Różne warianty technologiczne były przedmiotem symulacji fizycznych i numerycznych. Rozważono również możliwość zastosowania nowych materiałów w postaci stali bainitycznych. Celem optymalizacji była poprawa własności eksploatacyjnych wyrobów natomiast zużycie narzędzi i koszty wytwarzania wprowadzono jako ograniczenia. Rozważono cały szereg elementów złącznych ale w pracy zamieszczono wyniki dla trzech wyrobów, a mianowicie śruby imbusowej, kotwy do betonu oraz niestandardowej śruby z kwadratową główką. Wykonane próby przemysłowe potwierdziły prawidłowość zaproponowanych technologii wytwarzania tych elementów.
Źródło:: Archives of Metallurgy and Materials; 2015, 60, 1; 455-460
1733-3490
Pojawia się w:: Archives of Metallurgy and Materials
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: The Off-Line Computer System for Design of the Hot Rolling and Laminar Cooling Technology for Steel Strips
Autorzy:: Rauch, Ł.
Bzowski, K.
Kuziak, R
Kitowski, J.
Pietrzyk, M.
Powiązania:: https://bibliotekanauki.pl/articles/99595.pdf
Data publikacji:: 2016
Wydawca:: Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:: optimization
hot rolling
laminar cooling
steel strips
VirtRoll computer system
Opis:: The objective of this work was development of the computer system VirtRoll, which allows designing of the arbitrary rolling line and performing numerical simulations using high efficiency hardware architectures. Selection of the mechanical, thermal, microstructural and phase transformation models, which allow decreasing the computing costs while the accuracy of simulations is maintained on the reasonable level, was one of the objectives of the paper. Thus, metamodel was applied in the mechanical part and a simple finite element approach was used in the thermal part of the hot rolling model. Simulations of microstructure evolution in hot rolling and phase transformations during the laminar cooling were based on modified Avrami equation. The system was designed in the client-server architecture, in which client part is in the form of the graphical interface. This interface allows to design of rolling line. The server part is composed of: i) controllers which prepare computing tasks, ii) middleware layer responsible for launching and monitoring of the computing tasks, iii) the layer of numerical computations. Deal.II library dedicated to solve partial differential equations was used for the time step adaptations. All these parts led to short computing times and additionally allowed parallel solution of the optimization tasks. Simulations of thermal-mechanical-microstructural phenomena were performed for the rolling-cooling sequence and the results allowed validation of the system.
Źródło:: Journal of Machine Engineering; 2016, 16, 2; 27-43
1895-7595
2391-8071
Pojawia się w:: Journal of Machine Engineering
Dostawca treści:: Biblioteka Nauki

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