Autor: Domagalski, J. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Acoustic method of valuation of ships drive mechanism operation
Autorzy:: Domagalski, J.
Dobrzeniecki, J.
Powiązania:: https://bibliotekanauki.pl/articles/331541.pdf
Data publikacji:: 2008
Wydawca:: Polskie Towarzystwo Akustyczne
Tematy:: ships’ drive mechanism
acoustic method
hydroacoustic
Opis:: The paper is presented the method of valuation of ships drive mechanism operation by comparison of noise level in ship's rooms, vibrations in selected places of drive fastening and acoustic disturbances generated by a ship to water environment. Selected researches results are presented in form of graphs.
Źródło:: Hydroacoustics; 2008, 11; 79-86
1642-1817
Pojawia się w:: Hydroacoustics
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 2.

Tytuł:: Setting time periods of the concentration of the acoustic energy generated to water by ships
Autorzy:: Dobrzeniecki, J.
Domagalski, J.
Powiązania:: https://bibliotekanauki.pl/articles/332203.pdf
Data publikacji:: 2006
Wydawca:: Polskie Towarzystwo Akustyczne
Opis:: Generating the acoustic energy into the water environmental through the hull of the ship and the ship propeller usually remains in the frequency from the range of single hertz to a few or several kilohertz. In the range of the frequency that was analyzed there are discrete components that are connected with the work of ship’s mechanisms as well as with broadband “noise” that is relevant to phenomenon of cavitation that in some range of work of ship’s propeller can mask discrete components connected for example with the work of the main engine. Fixing the ranges of frequencies in which the acoustic energy from ship’s equipment are concentrated, can facilitate the remote diagnostics of the ship as well as its identification.
Źródło:: Hydroacoustics; 2006, 9; 39-46
1642-1817
Pojawia się w:: Hydroacoustics
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 3.

Tytuł:: The method of determination of the acoustic characteristics of the ship
Autorzy:: Dobrzeniecki, J.
Domagalski, J.
Powiązania:: https://bibliotekanauki.pl/articles/332467.pdf
Data publikacji:: 2007
Wydawca:: Polskie Towarzystwo Akustyczne
Opis:: The results of the research on the structure of the emission of the noise that are generated by the ship into the water environment are presented in this paper. The results are representative for the measurements that are carried out in the shallow water and presented in spectrograms and diagrams.
Źródło:: Hydroacoustics; 2007, 10; 25-32
1642-1817
Pojawia się w:: Hydroacoustics
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 4.

Tytuł:: Identification of ship’s main noises in the hydroacoustics field
Autorzy:: Domagalski, J.
Dobrzeniecki, J.
Powiązania:: https://bibliotekanauki.pl/articles/331880.pdf
Data publikacji:: 2010
Wydawca:: Polskie Towarzystwo Akustyczne
Opis:: Paper presents the results of the structure of the hydroacoustics field of different classes’ vessels measurements. Characteristics of underwater noises were described in the form of spectrograms and graphs worked out for different ship’s speeds. These results are representative for hydroacoustic measurements carried out in the shallow sea.
Źródło:: Hydroacoustics; 2010, 13; 61-66
1642-1817
Pojawia się w:: Hydroacoustics
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 5.

Tytuł:: Emission of hydroacoustics noise of ships with adjustment propeller
Autorzy:: Domagalski, J.
Dobrzeniecki, J.
Powiązania:: https://bibliotekanauki.pl/articles/332548.pdf
Data publikacji:: 2009
Wydawca:: Polskie Towarzystwo Akustyczne
Tematy:: hydroacoustics noise
ships
adjustment propeller
Opis:: In the present is furnished results of research of underwater emissions of disturbances in work by ship with adjustable propellers. Verification of level of noise emission was purpose of research dispose by shipping propellers depending on their. Noise have been presented from shipping propellers in background of noise from driving matches dating.
Źródło:: Hydroacoustics; 2009, 12; 39-44
1642-1817
Pojawia się w:: Hydroacoustics
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 6.

Tytuł:: Investigation of propagation of acoustic wave generated by a moving ship
Autorzy:: Gloza, I.
Domagalski, J.
Powiązania:: https://bibliotekanauki.pl/articles/331561.pdf
Data publikacji:: 2003
Wydawca:: Polskie Towarzystwo Akustyczne
Tematy:: acoustic wave
moving ship
Opis:: A moving ship is a source of acoustic perturbations resulting from her complex hull being a surface of irregular shape and from a rotational source - the propellers. The sources generate acoustic waves in wide frequency band. In case of a shallow sea the prapagation of the acoustic waves for varying source-detector distances and different frequencies are described applying the modes and ray theory.
Źródło:: Hydroacoustics; 2003, 6; 183-188
1642-1817
Pojawia się w:: Hydroacoustics
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 7.

Tytuł:: The character of underwater noise radiated by small vessels
Autorzy:: Malinowski, S. J.
Gloza, I.
Domagalski, J.
Powiązania:: https://bibliotekanauki.pl/articles/331594.pdf
Data publikacji:: 2001
Wydawca:: Polskie Towarzystwo Akustyczne
Opis:: This paper presents an overview of our initiatives for underwater noise measurements and their acoustic characteristics, which years ago have been applied. Different kinds of surface ships and more importantly submarines radiate high levels of underwater noise which can be detected and tracked by passive sonars. Hostile navies use these signatures for detection and classification of targets. In many cases, not only a vessel as a specific class of warship, but also even the individual ship within a concrete class can be positively identified. The method of narrow-band filtration of the spectrum' s discrete lines at frequencies up to several H: is the basic standard of passive systems for long-distance detection. To find the source of noise, the level of vibration was also measured by accelerometers. Ship' s very own distinctive acoustic signature radiated at discrete frequencies, excited by the machinery, is easily detected and must be decreased as much as possible. Coherence between underwater sound pressure from a moving vessel and vibration during the same run was made.
Źródło:: Hydroacoustics; 2001, 4; 161-164
1642-1817
Pojawia się w:: Hydroacoustics
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 8.

Tytuł:: Underwater noise radiated by ships, their propulsion and auxiliary machinery, and propellers
Autorzy:: Malinowski, S. J.
Gloza, I.
Domagalski, J.
Powiązania:: https://bibliotekanauki.pl/articles/332409.pdf
Data publikacji:: 2001
Wydawca:: Polskie Towarzystwo Akustyczne
Opis:: These underwater radiated noise and vibration measurements were conducted on a full-scale ship in August 2000. During the trails it was found that several spike noises are dominant. To find the location of high vibration level places and its frequencies, and the machines, which generated high level point noise components, 4 accelerometers were fixed in the engine and auxiliary rooms .We were using this system to find the relationship between certain manoeuvres and the vibration level caused by them. Propellers and engines are usually the major sources of noise in ships but gearboxes can also be significant contributors. The way of mounting of the machines and the resulting vibration of the hull are determining issues in the radiation of underwater noise. Naval Test and Evaluation Acoustic Ranges contain an accurate radiated noise measurement system consisting of a bottom-mounted hydrophone array for sailing condition and a stationary range. The sophisticated digital narrow-band instruments and analogue recorders were used by us.
Źródło:: Hydroacoustics; 2001, 4; 165-168
1642-1817
Pojawia się w:: Hydroacoustics
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 9.

Tytuł:: Pomiar dźwięków foki szarej
Grey seal vocaliza tion
Autorzy:: Malinowski, S. J.
Gloza, I.
Domagalski, J.
Powiązania:: https://bibliotekanauki.pl/articles/332681.pdf
Data publikacji:: 2000
Wydawca:: Polskie Towarzystwo Akustyczne
Opis:: Animals produce a wide range of sounds that can travel at great distances underwater. During the presentation you will listen to the real hydrophone recordings which were made here in Hel. The paper & recordings present the results of sound imitated by grey seals. Signature sounds differ between the individuals. Seals have a well-developed sense of hearing, especially in the water. In the air, their hearing ability is greatly reduced. They have large eyes and their underwater vision is better than a human 's, but even blind mammals are healthy, because the most important sense in the water is hearing, Researchers know that seals have an acute sense of smell on land. This sense is important for mothers identifying their pups. The results of the measurements show that the sound intensity method is worth using, especially in pools , shallow water, and to identify and find the direction of a sound source.
Źródło:: Hydroacoustics; 2000, 3; 177-182
1642-1817
Pojawia się w:: Hydroacoustics
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Informacja

Wyszukujesz frazę "Domagalski, J." wg kryterium: Autor

Źródło danych

Dostawca treści

Kolekcja

Rok wydania

Wydawca

Temat

Autor

Typ dokumentu

Język