Temat: gantry crane - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Dynamic analysis of the gantry crane used for transporting BOP
Analiza dynamiczna suwnicy bramowej przeznaczonej do transportu BOP
Autorzy:: Urbaś, A.
Wojciech, S.
Powiązania:: https://bibliotekanauki.pl/articles/374997.pdf
Data publikacji:: 2008
Wydawca:: Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:: suwnica bramowa
platforma wiertnicza
transport ładunku
gantry crane
drilling platform
Opis:: In the paper the dynamic analysis of a gantry crane used for transporting of BOP (BlowOut Preventer) is presented. The crane is placed on a drilling platform. Sea waves cause motion of the platform and the load. Description of such systems can be used in the design process of control systems which allows us to compensate waving. Homogenous transformations and joint coordinates are used to describe behavior of the system. Equations of motion are derived using the Lagrange equations of the second order. In the paper the results of numerical calculations are presented as well.
W pracy przedstawiono model dynamiczny suwnicy bramowej przeznaczonej do transportu ładunku zwanego BOP (BlowOut Preventer). Suwnice tego typu montowane są na statkach lub platformach wiertniczych. Falowanie morza powoduje niepożądane ruchy ładunku, wpływające na pracę suwnicy. Podjęto zatem próbę opisu dynamiki układu, która umożliwiła zbadanie wpływu falowania na zachowanie układu. Do opisu zastosowano formalizm transformacji jednorodnych i współrzędne złączowe. Równania ruchu układu wyprowadzono stosując równania Lagrange’a II rodzaju. Przedstawiono wyniki symulacji numerycznych.
Źródło:: Transport Problems; 2008, 3, 4; 85-100
1896-0596
2300-861X
Pojawia się w:: Transport Problems
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: A design proposal of driving system for roof segments and gantry crane of ecological floating dock
Autorzy:: Dymarski, C.
Łubiński, P.
Powiązania:: https://bibliotekanauki.pl/articles/260321.pdf
Data publikacji:: 2005
Wydawca:: Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:: floating dock
shipboard equipmen
gantry crane driving mechanisms
systems of movable roof segments
Opis:: In the conceptual design of an ecological floating dock, has been assumed to be applied a roof system consisted of six movable segments whose aim is to shelter dock’s working space from environmental influence. The dock has to be also equipped with a gantry crane. Each of the devices is fitted with a traction system whose drive is the subject of this paper. The driving system consisted of synchronous electric motors with external frequency control of their rotational speed, is proposed. Such system may ensure the same rotational speed at both supports, unambiguously determined by voltage frequency and independent of load. The solution could make it possible to avoid dangerous skewing displacements of the structures on rail tracks during service. Additionally, a simplified procedure of determining the main loads necessary for calculation and selection of the devices and traction systems is also presented.
Źródło:: Polish Maritime Research; 2005, S 1; 65-69
1233-2585
Pojawia się w:: Polish Maritime Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Ocena wytrzymałości konstrukcji powłokowego mostu przeładunkowego
Strength analysis of a gantry crane
Autorzy:: Matachowski, F.
Bańdo, D.
Powiązania:: https://bibliotekanauki.pl/articles/208463.pdf
Data publikacji:: 2006
Wydawca:: Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
Tematy:: suwnica
powłokowy most przeładunkowy
analiza wytrzymałościowa
MES (metoda elementów skończonych)
gantry crane
strength analysis
Opis:: Wiele pracujących obecnie suwnic ma za sobą 20-30-letni okres eksploatacji. Stwarza to konieczność przeprowadzenia oceny stanu technicznego konstrukcji. Jednym ze składników takiej oceny staje się analiza wytrzymałościowa. Właśnie w takim celu dokonano analizy wytrzymałościowej powłokowego mostu przeładunkowego. Wykorzystano metodę elementów skończonych ze względu na skomplikowaną, przestrzenną konstrukcję blachownicową mostu. W rezultacie otrzymano informacje o miejscach, na które szczególnie trzeba zwrócić uwagę, co wydatnie pomogło w oględzinach konstrukcji i badaniach defektoskopowych.
Many of currently working gantry cranes have been exploited for 20-30 years. After that period it is necessary to evaluate technical state of a construction. Strength analysis is an element of such evaluation. Because of very complicated and unusual three dimensional main construction of sheet metal of this gantry crane, the Finite Element Method has been used. As a result of that analysis, the data on stress concentration points, which should be of special notice, have been obtained. The known location of these points was helpful for inspection and non-destructive tests.
Źródło:: Biuletyn Wojskowej Akademii Technicznej; 2006, 55, 4; 173-181
1234-5865
Pojawia się w:: Biuletyn Wojskowej Akademii Technicznej
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Determination of rectification corrections for semi gantry crane rail axes in the local 3D coordinate system
Autorzy:: Filipiak, D.
Kamiński, W.
Powiązania:: https://bibliotekanauki.pl/articles/106885.pdf
Data publikacji:: 2014
Wydawca:: Politechnika Warszawska. Wydział Geodezji i Kartografii
Tematy:: rectification corrections for crane rail axes
semi gantry crane
local 3D system
korekta rektyfikacji
osie kolejowe
suwnica
lokalny system 3D
Opis:: Electronic tacheometers are currently the standard instruments used in geodetic work, including also geodetic engineering measurements. The main advantage connected with this equipment is among others high accuracy of the measurement and thus high accuracy of the final determinations represented for example by the points’ coordinates. One of many applications of the tacheometers is the measurement of crane rail axes. This measurement is based on polar method and it allows to get the spatial coordinates of points in 3D local system. The standard technology of measurement of crane rail axes and development of its calculations’ results is well-known and widely presented in the subject literature. At the same time new methods of observations results evaluation are developing. Some new proposals for the development of measurement results were already presented in (Kamiński, 2013). This paper is a generalisation of the paper quoted above. The authors developed the concept which was presented there by a proposal for determining rectification corrections for semi gantry crane rail axes. To carried out the task, the parametric method with conditions on parameters was used. Moreover the practical tests on simulated measurement results were conducted. The results obtained from alignment confirmed the theoretical assumptions. Despite the fact that analyses were carried out only on the simulated data, it is already possible to say that presented method for determination of rectification corrections for crane rail axes can be used for development of the observations from real measurement.
Źródło:: Reports on Geodesy and Geoinformatics; 2014, 97; 71-79
2391-8365
2391-8152
Pojawia się w:: Reports on Geodesy and Geoinformatics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Simulation of a Container Terminal and it’s Reflect on Port Economy
Autorzy:: Elentably, A.
Powiązania:: https://bibliotekanauki.pl/articles/116308.pdf
Data publikacji:: 2016
Wydawca:: Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:: container terminal
port economy
simulation of a container terminal
discrete event simulation (DES)
port simulation software (PORTSIM)
handling equipment
mobile harbour crane (MHC)
gantry crane (GC)
Opis:: The combination between the design and project of container terminals and the reflect on port’s economy may be carried out through two main approaches: optimization or simulation. Although the approaches based on optimization models allow a more elegant and compact formulation of the problem, simulation models are mainly based on discrete event simulation (DES) models and help to achieve several aims: then measure this impact on port economy before and after implemented this updating overcome mathematical limitations of optimization approaches, support and make computer-generated strategies/policies more understandable, and support decision makers in daily decision processes through a “what if” approach. Several applications of DES models have been proposed and simulation results confirm that such an approach is quite effective at simulating container terminal operations. Most of the contributions in the literature develop object oriented simulation models and pursue a macroscopic approach which gathers elementary handling activities (e.g. using cranes, reach stackers, shuttles) into a few macro-activities (e.g. unloading vessels: crane-dock-reach stacker-shuttle-yard), simulate the movement of an “aggregation” of containers and therefore do not take into account the effects of container types (e.g. 20’ vs 40’, full vs empty), the incidence of different handling activities that may seem similar but show different time duration and variability/dispersion (e.g. crane unloading a container to dock or to a shuttle) and the differences within the same handling activity (e.g. stacking/loading/unloading time with respect to the tier number). Such contributions primarily focus on modeling architecture, on software implementation issues and on simulating design/real scenarios. Activity duration is often assumed to be deterministic, and those few authors that estimate specific stochastic handling equipment models do not clearly state how they were calibrated, what data were used and what the parameter Values are. Finally, no one investigates the effects of different modeling hypotheses on the simulation of container terminal performances. The focus of this paper is on the effects that different hypotheses on handling equipment models calibration may have on the simulation (discrete event) of container terminal performances. Such effects could not be negligible and should be investigated with respect to different planning horizons, such as strategic or tactical. The aim is to propose to analysts, modelers and practitioners a sort of a guideline useful to point out the strengths or weaknesses of different approaches. Drawing on the model architecture which will be affected on port economics.
Źródło:: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2016, 10, 2; 331-337
2083-6473
2083-6481
Pojawia się w:: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:: Biblioteka Nauki

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