Obiekt

Tytuł odmienny:

Metoda przewidywania skuteczności perforowanych hamulców wylotowych

Współtwórca:

Radosław TRĘBIŃSKI

Abstrakt:

This paper presents a method for predicting a value of a gasdynamic efficiency coefficient for perforated muzzle brakes. The method is based on the interior ballistics modelling for determining gasdynamic flow parameters at the brake inlet and 2D modelling the processes inside the brake with treating vents as circumferential slots. The modelling provides information about the mass flux time changes at the inlet and at the outlet of the brake. Using this information, the mass partition coefficient values and the gasdynamic efficiency coefficient values are calculated. It has been shown that the mass partition coefficient establishes very quickly and it is determined only by the geometry of the brake. The gasdynamic efficiency coefficient establishes after a relatively long time, what demands carrying out calculations for a relatively long time period. However, it has been shown that this problem can be solved by making use of the established ratio of mass fluxes at the outlet and the inlet. So, flow parameters’ values at the inlet are sufficient for determining the gasdynamic efficiency coefficient to the moment of attaining the final value. It has been shown that this value depends on the ballistics and on the vents inclination angle.

Miejsce wydania:

Warszawa

Wydawca:

Wojskowa Akademia Techniczna

Data utworzenia:

2010 r.0

Data złożenia:

2021-07-12

Data akceptacji:

2021-08-24

Data wydania:

2021-12-30

Rozmiar:

B5

Identyfikator:

oai:ribes-88.man.poznan.pl:2622

Sygnatura:

DOI 10.5604/01.3001.0015.5985

ISSN elektroniczny:

2720-5266

ISSN drukowany:

2081-5891

Język:

angielski

Licencja:

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Właściciel praw:

Wojskowa Akademia Techniczna

Strona początkowa:

29

Strona końcowa:

42

Tom:

12

Słowa kluczowe:

ballistics, muzzle brake, gasdynamic efficiency coefficient