Wyniki wyszukiwania - Biblioteka Nauki

Nowa wersja platformy, zawierająca wyłącznie zasoby pełnotekstowe, jest już dostępna.
Przejdź na https://bibliotekanauki.pl

Ograniczanie wyników

Znaleziono wyników: 3

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: seating

Sortuj według:

Ogranicz wyniki do:

Comparative studies of the seatings of propulsion plants and auxiliary machinery on chocks made of metal and cast of resin. Part I. Mounting on steel chocks

100%

Grudziński P. , Konowalski K.

tom nr 4

142--148

This paper presents a description and the results of experimental studies of the deformation, friction and structural damping occurring in foundation bolted joints of propulsion plant components and auxiliary machinery that is rigidly mounted on sea-going ships. The rigid mounting of these devices to the ships’ structural foundations can be implemented in a traditional way, i.e. on chocks made of metal (usually of steel), or in a modern way, i.e. on chocks cast of resin, specially designed for this purpose. The main goal of this study is to perform a comparative analysis of these two solutions and to give a scientific explanation for why chocks cast of resin perform better in machinery seatings than the steel chocks traditionally used for this purpose. The paper consists of two parts. Part I presents the details of the rigid mountings of machinery to the foundations, and contains the results of experimental studies performed on a model of a foundation bolted joint with a traditional steel chock. Part II contains the results of similar studies carried out for a model of a bolted joint with a modern chock cast of resin. Next, a comparative analysis and evaluation of the results obtained for both investigated bolted joints was carried out, and conclusions were formulated to highlight important aspects of the problem from the point of view of science and engineering practice.

Comparative studies of the seatings of propulsion plantsand auxiliary machinery on chocks made of metal and cast from resin. Part II. Mounting on cast resin chocks

100%

Grudziński P. , Konowalski K.

tom nr 1

126--133

This article is Part II of the paper containing a description and results of the experimental studies of the deformations, friction processes and structural damping that occur in the foundation bolted joints of propulsion plant components and auxiliary machinery installed on sea-going ships. Part I of this research work presents an analysis of the rigid mountings of machines and devices to the foundations on steel or resin chocks, and explains the need to carry out relevant research in this area. It also presents the description and results of experimental studies carried out for a foundation bolted joint with a conventionally used steel chock. Part II (this article) contains a description and results of similar studies carried out for a foundation bolted joint with a modern chock – cast from epoxy resin compound (EPY), specially developed for this purpose. Then, a comparative analysis of the results obtained for both bolted joints in question was made and the foundation chocks of the poured-in-place resin compound were demonstrated to better fulfill their technical tasks than the steel chocks traditionally used for this purpose.

Analiza odkształceń i naprężeń w fundamentowych złączach śrubowych. Cz. 1, Złącze śrubowe z podkładką stalową

84%

Grudziński P.

tom T. 21, nr 52

64--71

Praca dotyczy modelowania fundamentowych złączy śrubowych ciężkich maszyn i urządzeń posadawianych w sposób „sztywny” na fundamencie oraz analizy występujących w nich odkształceń i naprężeń. W szczególności zaś przedmiotem badań są odkształcenia i naprężenia występujące w pojedynczych złączach śrubowych z tradycyjnie stosowaną podkładką fundamentową wykonaną ze stali oraz z podkładką nowoczesną - odlaną ze specjalnie do tego celu opracowanego tworzywa epoksydowego (EPY). Głównym celem tych badań było wyjaśnienie, dlaczego podkładki fundamentowe stosowane w posadowieniach maszyn, odlewane z tworzywa polimerowego, lepiej spełniają swoje zadania, niż tradycyjnie stosowane do tego celu podkładki stalowe. Całość tego opracowania składa się z dwóch części. W części pierwszej przedstawiono wyniki badań fundamentowego złącza z tradycyjnie stosowaną podkładką stalową, a w części drugiej – wyniki analogicznych badań wykonanych dla złącza z podkładką nowoczesną – odlaną z tworzywa.

Deformation and stress analysis of foundation bolted joints Part I. A bolted joint with a chock made of steel Summary The paper concerns the modeling of foundation bolted joints of heavy machines and devices seated in a “stiff” manner on foundations. The stress and deformation analysis are also provided. Emphasis was placed on de-formations and stresses in single bolted joints with a traditional foundation steel chock and those with a mod-ern chock – cast of epoxy plastic (EPY), specially developed for this purpose. The main objective of this study was to explain why polymer foundation chocks better fulfill their functions than steel chocks. The paper consists of two parts. In part I the results of the studies curried out for a foundation bolted joint with a tradition-ally used steel chock are presented, and in part II– the results of similar studies curried out for a foundation bolted joint with a modern chock - cast of epoxy plastic.