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Wyszukujesz frazę "Kwapisz, M." wg kryterium: Autor


Wyświetlanie 1-3 z 3
Tytuł:
Application of underwater hydroacoustic navigation system in the research of submerged cables and ROV umbilicals
Autorzy:
Narewski, M.
Kwapisz, L.
Rowiński, L. A.
Żrodowski, C.
Powiązania:
https://bibliotekanauki.pl/articles/332636.pdf
Data publikacji:
1997
Wydawca:
Polskie Towarzystwo Akustyczne
Opis:
There is several algorythms known for a computer simulation of tethers used in underwater vehicles. The results of research done for specific conditions are hardly available. Practically, there is a very limited number of data available for comparision of various calculation algorythms. The described profect was directed on comparison of analytical and experimental results of the sumberged cables behaviour subjected to 3-D water flow. Experimental data were obtained in a part during tests of cable models in circular water tank. Real sea condition measurements done at full scale with ROV and underwater towed vehicles were done to compare data from test tank with reality. Sumerged cable cooridnates were obtained using super short baseline u/w navigation system. Forces inducted in the tethers were also measured using spectal measurement methods. The paper describes major problems encountered during use of the ORE LXT u/w navigation system and summarises experience with real underwater systems used in the research.
Źródło:
Hydroacoustics; 1997, 1; 243-248
1642-1817
Pojawia się w:
Hydroacoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A measurement of 3-D water velocity components during ROV tether simulations in a test tank using hydroacoustic doppler velocimeter
Autorzy:
Kwapisz, L.
Narewski, M.
Rowiński, L. A.
Żrodowski, C.
Powiązania:
https://bibliotekanauki.pl/articles/332105.pdf
Data publikacji:
1997
Wydawca:
Polskie Towarzystwo Akustyczne
Opis:
A computer simulation of ROV tethers performance could be done more precisely if velocity field of water flowing around the tether cable is known. The paper describes operation and performance of the doppler acoustic velocimeter ADVlab. A brief outline of the procedures and related problems with determination of 3-D velocity components in the test tank is described.
Źródło:
Hydroacoustics; 1997, 1; 231-236
1642-1817
Pojawia się w:
Hydroacoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Free vibrations analysis of shrouded bladed discs with one loose blade
Autorzy:
Rządkowski, R.
Kwapisz, L.
Drewczyński, M.
Szczepanik, R.
Rao, J.S.
Powiązania:
https://bibliotekanauki.pl/articles/1955347.pdf
Data publikacji:
2006
Wydawca:
Politechnika Gdańska
Tematy:
blade
shrouded bladed disc
free vibration
Opis:
As a failure of rotor blades in a gas turbine was reported, the rotating-mode shapes of flexible shrouded bladed disc assemblies were calculated using a finite element approach. Rotational effects, such as centrifugal stiffening were accounted for, and all couplings between the flexible parts were allowed. The spin softening effects were neglected. A dynamic analysis of the shrouded bladed disc demonstrated that it was designed with a sufficient safety region of resonance. In case of one blade getting loose, it is vibrating in resonance.
Źródło:
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2006, 10, 1; 83-95
1428-6394
Pojawia się w:
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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