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Wyszukujesz frazę "floating buoy" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
Some practical problems of communications reliability inenviromental monitoring systems
Autorzy:
Dziadak, B.
Makowski, L.
Michalski, A.
Powiązania:
https://bibliotekanauki.pl/articles/220493.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
monitoring systems
GSM communication
floating buoy
real-time messaging
Opis:
In this paper, some issues of building a reliable, distributed measurement system for monitoring of water quality in reservoir Lake Dobczyckie are presented. The system is based on a measurement station that has the shape of a floating buoy which is supposed to be at anchor on the reservoir. Wireless data transmission problems that were encountered during the development of the buoy, modeling a radio link, and measurements of actual signal strength on the reservoir are discussed. A mathematical approach to procedures of early situation assessment was conducted, and specialized procedures were designed for measurement stations of the system. It is also discussed how such computations can improve a qualitative assessment of system performance in terms of real-time messaging.
Źródło:
Metrology and Measurement Systems; 2013, 20, 3; 337-350
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
DeepCwind semi-submersible floating offshore wind turbine platform with a nonlinear multi-segment catenary mooring line and intermediate buoy
Autorzy:
Motallebi, Mohammad
Ghassemi, Hassan
Shokouhian, Mehdi
Powiązania:
https://bibliotekanauki.pl/articles/24202503.pdf
Data publikacji:
2022
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
semi-submersible floating platform
offshore wind turbine
dynamic response
catenary mooring system
intermediate buoy
strain and tension
Opis:
In this paper, to improve the mechanical behavior of DeepCwind semi-submersible floating offshore wind turbine (FOWT) platform mooring lines, the nonlinear catenary cables of the platform were divided into multi-segment and intermediate buoys. Mathematical formulations of the boundary element method (BEM) governing the dynamics of mooring line systems with buoy devices were described. This study was applied to the OC4-DeepCwind semi-submersible FOWT platform, which is designed for a 200-meter water depth with mooring lines consisting of three catenary steel chain cables at 120° angles to each other. The dynamic response of the multi-segment catenary mooring lines with different buoy radiuses and different positions along the cables was investigated. The full-scale platform was modeled in ANSYS-AQWA software, and the simulations were performed under harsh offshore conditions. The mooring line’s general arrangement, tension, strain and uplift force for different buoy radiuses and their position along the cable are presented and discussed. Moreover, platform motions in three directions (surge, heave, and pitch) were also analyzed. It was concluded that by correctly selecting the buoy volume and position along the cable, the tension of the cable may be reduced by up to 45%. By incorrectly selecting the buoy, the results caused adverse effects.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2022, 69 (141); 20--34
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A comparison between conventional buoy mooring CBM, single point mooring SPM and single anchor loading SAL systems considering the Hydro-meteorological condition limits for safe ship’s operation offshore
Autorzy:
Rutkowski, G.
Powiązania:
https://bibliotekanauki.pl/articles/117407.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
offshore operations
Conventional Buoy Mooring (CBM)
Single Point Mooring (SPM)
Single Anchor Loading (SAL)
hydrometeorological condition limits
Multiple Buoy Mooring (MBM)
very large crude carrier (VLCC)
Floating Production Storage and Offloading (FPSO)
Opis:
The purpose and scope of this paper is to describe the characteristics and make comparisons between: Conventional Buoy Mooring (CBM), also referred to as Multi-Buoy Moorings (MBM), Single Point Mooring (SPM) and conventional Single Anchor Loading (SAL) systems considering the hydro meteorological condition limits enabling safe ship’s cargo and manoeuvring operation offshore. These systems (CBM, SPM and SAL) are typically used for short term mooring applications offshore associated with the offloading and loading of bulk liquid fuel tankers transporting refined and unrefined products of crude oil. The permanently moored vessels FSO/FPSO are excluded from this scope.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2019, 13, 1; 187-195
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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