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Wyszukujesz frazę "Golczak, K." wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
Pneumatic air object application in design of water crossing
Autorzy:
Derewońko, A.
Kołodziejczyk, D.
Golczak, K.
Powiązania:
https://bibliotekanauki.pl/articles/241775.pdf
Data publikacji:
2012
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
cassette pontoon bridge
numerical analysis
transport infrastructure
air pollution
pneumatic airbag
Opis:
The results of numerical analysis of the decomposing process of a single pneumatic cassette pontoon bridge as a temporary roadway are presented in the paper. The cassette pontoon bridge is an innovative solution designed for quick assembly of the construction on water. The repeatability of a single module, facility of transportation and operation mean that it can be used in many applications: crossings for military vehicles (e.g. tanks or wheeled vehicles lightarmoured), replacement crossing for trucks (e.g. delivering materials for the construction of the permanent bridge), ribbons replacing flooded roads and footbridges on suddenly increased watercourses. The main problem in our consideration is single cassette pontoon stability at the moment of filling the pontoon. The numerical investigations presented in the present paper aimed at testing the influence of the load on the process of filling the single cassette pontoon. To perform the analyses, LS-DYNA software, in which the dynamic equations of motion are solved using an explicit time integration method, was used. The paper presents initial verification of the initial conditions influence on the process of filling the single cassette pontoon. An important factor considered in the work is a strong influence of an unbalanced load distribution on the surface of the cassette capacity on the process of filling the pontoon.
Źródło:
Journal of KONES; 2012, 19, 4; 155-161
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Selected aspects of simulation of multi - module mechanisms with the use of multibody method
Autorzy:
Krasoń, W.
Kozłowski, R.
Derewońko, A.
Golczak, K.
Powiązania:
https://bibliotekanauki.pl/articles/247966.pdf
Data publikacji:
2012
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
bridges
simulation of multi-component mechanism
rigid models
multibody numerical analysis
Opis:
The paper presents numerical analysis of a single segment of a floating bridge built in the form of a metal cassette with a movable bottom. An internal elastic container - a pontoon filled with the air was fixed in the cassette [4]. It enables a fluent change of displacement of a single segment and of a floating ribbon assembled from segments. A multibody analysis of cooperation of the cassette in the process of filling the pontoon and opening the cassette was discussed. Numerical analysis of a single cassette presented in the paper constitutes a part of tests including stand tests. The single floating cassette has a typical shelled construction consists of a tight deck, a pneumatic chamber closed with a reinforced movable bottom and sets of fastenings together with a mechanism of bottom opening. Each cassette is equipped with a highly resistant elastic or semi-elastic cushion hereinafter called a pontoon. The movement of the bottom and the process of opening the cassette module with a pneumatic air cushion realized under an influence of pressure of the compressed air. As a result of uneven filling the individual chamber of the pontoon with the air or their uneven emptying in the process of closing the cassette, there can occur the asymmetry of displacements of the bottom resulted even in seizing of telescopic mechanisms. In the paper were considered the cases of symmetrical and asymmetrical movement of the bottom corresponding to symmetrical and unsymmetrical pull out of the telescopic mechanism modules. Dynamical analysis of movement of cooperating subsystems of the floating cassette was carried out with the use of MSC.Adams code [5, 8].
Źródło:
Journal of KONES; 2012, 19, 1; 207-214
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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