NUMERICAL AND EXPERIMENTAL ANALYSIS OF THE STRENGTH OF TANKS DEDICATED TO HOT UTILITY WATER

The focus of this paper are experimental and numerical strength tests of domestic hot water storage tanks. The tests involved the verification of the minimum wall thickness for the assumed operating parameters while meeting all safety standards. The authors presented numerical and experimental analyses for the verification of strength parameters of axial cylindrical tanks due to the lack of methodological guidelines for this type of equipment. In order to verify the conducted theoretical considerations and calculations, experimental tests of samples of front welds produced with austenitic steel as well as a pressure test for the whole tank were conducted using a research test stand

NUMERICAL AND EXPERIMENTAL ANALYSIS OF THE STRENGTH OF TANKS DEDICATED TO HOT UTILITY WATER

The focus of this paper are experimental and numerical strength tests of domestic hot water storage tanks. The tests involved the verification of the minimum wall thickness for the assumed operating parameters while meeting all safety standards. The authors presented numerical and experimental analyses for the verification of strength parameters of axial cylindrical tanks due to the lack of methodological guidelines for this type of equipment. In order to verify the conducted theoretical considerations and calculations, experimental tests of samples of front welds produced with austenitic steel as well as a pressure test for the whole tank were conducted using a research test stand

HIGH SPEED MILLING IN THIN-WALLED AIRCRAFT STRUCTURES

Aircraft structures are designed to mainly consist of integral elements which have been produced by welding or riveting of component parts in technologies utilized earlier in the production process. Parts such as ribs, longitudinals, girders, frames, coverages of fuselage and wings can all be categorized as integral elements. These parts are assembled into larger assemblies after milling. The main aim of the utilized treatments, besides ensuring the functional criterion, is obtaining the best ratio of strength to con-struction weight. Using high milling speeds enables economical manu-facturing of integral components by reducing machining time, but it also improves the quality of the machined surface. It is caused by the fact that cutting forces are significantly lower for high cutting speeds than for standard machining techniques

Badania procesu kucia stopu CrNiN : praca doktorska /

Recenzenci pracy: Józef Gawlik, Edward Michlowicz.Praca doktorska. Akademia Górniczo-Hutnicza im. Stanisława Staszica (Kraków), 2012.Bibliogr. k. 115-119.Wyznaczenie własności reologicznych stopu CrNiN, metoda badań i stanowisko pomiarowe, program badań, analiza procesu swobodnego kucia wału w kowadłach płaskich, cel, zakres analizy, analiza teoretyczna w oparciu o Metodę Elementów Skończonych, symulacja procesu spęczania próbek ze stopu CrNiN w warunkach laboratoryjnych, w oparciu o pakiet oprogramowania QForm 3D, symulacja procesu spęczania próbek ze stopu CrNiN w warunkach przemysłowych, symulacja procesu spęczania próbek ze stopu CrNiN w warunkach przemysłowych, pakiet programowania DEFORM 3D, badania eksperymentalne, wybór, charakterystyka stanowiska badawczego, analiza procesu kucia wału w matrycy otwartej, kucie w matrycy jednowykrojowej, teoretyczna analiza procesu w oparciu o pakiet oprogramowania Metody Elementów Skończonych, kucie wałka ze stopu CrNiN w jednowykrojowej matrycy otwartej, kucie w matrycy dwuwykrojowej, teoretyczna analiza procesu przy wykorzystaniu Metody Elementów Skończonych, eksperymentalne badania procesu kucia stopu CrNiN w matrycy dwuwykrojowej, wyznaczenie własności stopu CrNiN po przeróbce plastyczne

REPAIR TECHNOLOGY OF THE COMPOSITE WING OF A LIGHT PLANE DAMAGED DURING AN AIRCRAFT CRASH

The increasing use of composite structures in aircraft constructions has made it necessary to develop repair methods that will restore the component’s original design strength without compromising its structural integrity. In this paper, the complex repair technology of the composite wing of a light plane, which was damaged during an aircraft crash, is described. The applied repair scheme should meet all the original design requirements for the plane structure

REPAIR TECHNOLOGY OF THE COMPOSITE WING OF A LIGHT PLANE DAMAGED DURING AN AIRCRAFT CRASH

The increasing use of composite structures in aircraft constructions has made it necessary to develop repair methods that will restore the component’s original design strength without compromising its structural integrity. In this paper, the complex repair technology of the composite wing of a light plane, which was damaged during an aircraft crash, is described. The applied repair scheme should meet all the original design requirements for the plane structure

Współpraca technologiczna przedsiębiorstw na jednym europejskim rynku : wspieranie sieci europejskiej przedsiębiorstwa

Celem artykułu jest zbadanie motywów i jakości współpracy technologicznej przedsiębiorstw na Jednolitym Rynku Europejskim. Analizie poddano wpływ wsparcia sieci Enterprise Europe Network na nawiązywanie współpracy technologicznej w latach 2008-2014. W artykule analizuje się wpływ współpracy technologicznej na konkurencyjność i atrakcyjność przedsiębiorstw na JRE. W procesie badawczym wykorzystano dane jednostkowe pochodzące z Enterprise Europe Network Activity Report 2008-2014, wyniki badań kwestionariuszowych przeprowadzonych wśród konsultantów sieci oraz obserwację uczestniczącą. Stwierdzono, że na podejmowanie przez przedsiębiorstwa międzynarodowej współpracy technologicznej wpływa dostępność systemowych instrumentów wsparcia. Wnioskiem wynikającym z artykułu jest, że polityka wsparcia innowacyjności technologicznej powinna się koncentrować na kreowaniu i upowszechnianiu w przedsiębiorstwach publicznych instrumentów wsparcia, co prowadzi do wzrostu konkurencyjności na Jednolitym Rynku Europejskim.The aim of this article is to examine the motivation and quality of technological cooperation of enterprises on the Single European Market, with emphasis on the support of the Enterprise Europe Network in establishing technological cooperation in the years 2008-2014. The article analyses the impact of technological cooperation on the competitiveness and attractiveness of enterprises in the SEM. The research process was based on data from the Enter-prise Europe Network Activity Report 2008-2014, the results of a questionnaire conducted among the network's consultants, and participant observation. It was found that taking up international technological cooperation is influenced by the availability of systemic support instruments to the enterprise. One of the conclusions of the study is that the policy of technological innovation support should focus on the creation and dissemination of public support instruments among enterprises, which leads to increased competitiveness on the Single European Market