Investigations of Certain Aspects of Thermo-Mechanical Resistance of Rocket Graphite Nozzles to Erosion Impact of High Speed Combustion Products Flow

• Autorzy: Miszczak M. , Świderski W.
• Konferencja: International Conference on Modelling and Simulation of the Friction Phenomena in the Physical and Technical Systems "FRICTION 2008" (5 ; 31.05-1.06.2008 ; Warsaw, Poland) ; French-Polish Seminar of Mechanics (16 ; 31.05-1.06.2008 ; Warsaw, Poland)
• Języki publikacji: PL

Abstrakty

EN

In this paper there were presented investigations of graphite hybrid nozzles i.e. consisted of pyrographite insert - optionally larger and smaller one mounted into polycrystalline graphite body by means of adhesive. An aim of investigations, it was determination of resistance of newly designed graphite nozzles against thermo-mechanical and possible chemical impact/erosion of high speed combustion products flow as a result of burning of solid propellant sustaining charge of antiaircraft short-range missile GROM. IR thermal camera and real time rentgenography (RTR) measured thermo-mechanical erosion action of combustion products towards the graphite nozzles. Hybrid nozzle with larger pyrographite insert is able to resist combustion products erosion. So, it seems to be possible to replace currently produced pyrographite nozzles by hybrid ones equipped with larger insert. Such replacement should cause considerably decrease of mass content of relatively expensive pyrographite in construction of the nozzles, from 100 to 40 percent.

Słowa kluczowe

PL

rentgenography; kamera termowizyjna; termowizja; termografia w podczerwieni; dysza grafitowa; grafit polikrystaliczny

EN

rentgenografia; thermal camera; thermovision; IR thermography; graphite nozzles; pyrographite nozzles; thermo-mechanical erosion; polycrystalline graphite

• Wydawca: Oficyna Wydawnicza Politechniki Warszawskiej
• Czasopismo: Machine Dynamics Problems
• Rocznik: 2008
• Tom: Vol. 32, No. 1
• Strony: 56--63
• Opis fizyczny: Bibliogr. 4 poz., il.

Twórcy

autor

Miszczak M.

autor

Świderski W.

• Military Institute of Armament Technology,

Bibliografia

• Kubota, N., 2002, Propellents and explosives - Thermo chemical aspects of combustion, Viley-VCH Verlag GmbH and Co. KGaA, p. 171.
• Maltsev, B.M., Maltsev, M.I., Kaschparov, L.J., 1977, Osnovnye kharakteristiki gorenya, Izdatelstvo Khemia, Moscow, 290-317.
• NASA, ICT Thermodynamic Code, Version 1.00.
• Pauschkin, J.M., 1978, Zhidkie i tverdye khimicheskie raketnye topliva, Izdatelstvo Nauka, Moscow, pp. 41, 45-46, 72.
• Polish Patent P. 174084, Missile nozzle.
• Tischunin, LV., 1970, Vspomagatielnye sistemy rakietno-kosmicheskoy tekhniki, Izdatelstvo Mir, Moscow, 144-184 (Ed. of Russian translation of the book entitled: Aerospace Ordnance Handbook, Prentice Hall, Inc. Englewood Cliffs, N.Y. USA, Pollard, F.B., Arnold, J.H. Jr. (Ed.), 1966).