Доступ предоставлен для: Guest
Портал Begell Электронная Бибилиотека e-Книги Журналы Справочники и Сборники статей Коллекции
International Journal of Energetic Materials and Chemical Propulsion
ESCI SJR: 0.28 SNIP: 0.421 CiteScore™: 0.9

ISSN Печать: 2150-766X
ISSN Онлайн: 2150-7678

Выпуски:
Том 19, 2020 Том 18, 2019 Том 17, 2018 Том 16, 2017 Том 15, 2016 Том 14, 2015 Том 13, 2014 Том 12, 2013 Том 11, 2012 Том 10, 2011 Том 9, 2010 Том 8, 2009 Том 7, 2008 Том 6, 2007 Том 5, 2002 Том 4, 1997 Том 3, 1994 Том 2, 1993 Том 1, 1991

International Journal of Energetic Materials and Chemical Propulsion

DOI: 10.1615/IntJEnergeticMaterialsChemProp.v8.i6.60
pages 541-554

MANUFACTURING AND TESTING OF A DUAL-PROPELLANT NOZZLELESS BOOSTER TECHNOLOGY DEMONSTRATOR

Gideon J. van Zyl
Rheinmetall Denel Munition, Western Cape, P O Box 187, Somerset West, 7129, South Africa
Martin Hubinger
Rheinmetall Denel Munition, Western Cape, P O Box 187, Somerset West, 7129, South Africa

Краткое описание

The total impulse delivered by a nozzleless booster rocket motor is mainly determined by the burning rate and ballistic properties of its propellant. Propellants with low burning rate pressure exponents (n-values) and high burning rates permit significant increases in performance. It is common knowledge that ferrocene-based burning rate catalysts reduces the burning rate pressure exponent and increases the burning rate significantly. Therefore, ballistic properties produced by the ferrocene-grafted HTPB polymer, Butacene®, are highly effective in nozzleless booster motors. However, high burning rate Butacene-based propellants may produce a high initial pressure peak during the ignition phase of the nozzleless booster motor, which may necessitate the use of a stronger and thus heavier motor casing. One way to reduce this high ignition pressure is to design a dual-propellant grain that consists of two concentric propellant layers. A thin inner layer contains a propellant with a slightly lower burning rate, while the much larger outer layer consists of a higher burning rate Butacene-based propellant. In this case, the inner propellant layer consisted of a Fe2O3-based reduced smoke propellant, while the outer layer consisted of a Butacene-based reduced smoke propellant. Formulations and properties of the two propellants used in the manufacturing of the dual-propellant nozzleless booster motor are reported. A good bonding interface between the Butacene and Fe2O3 propellant layers was ensured by application of an isocyanate-based activation coat between the layers. A displacement casting process was used for the manufacturing of the dual-propellant grain. The results of the static test-firing of this nozzleless booster motor showed that the high ignition pressure was reduced by using the dual-propellant design concept.

ЛИТЕРАТУРА

  1. Davenas, A., Solid Rocket Propulsion Technology.

  2. Procinsky, I.M. and McHale, C.A., Nozzleless Booster for Integral-Rocket-Ramjet Missile Systems.

  3. Atwood, A.I., Curran, P.O., Price, C.F., Boggs, T.L., and Booth, D., High Pressure Burning Rate Studies of Ammonium Perchlorate (AP)-Based Propellants.

  4. Lessard, P., Beaupré, F., and Brousseau, P., Burn Rate Studies of Composite Propellants Containing Ultra-Fine Metals.


Articles with similar content:

CHARACTERIZATION OF SOLID FUEL MASS-BURNING ENHANCEMENT UTILIZING AN X-RAY TRANSLUCENT HYBRID ROCKET MOTOR
International Journal of Energetic Materials and Chemical Propulsion, Vol.6, 2007, issue 6
J. Eric Boyer, Brian Evans, Nicholas A. Favorito
INVESTIGATION OF SOLID OXIDIZER AND GASEOUS FUEL COMBUSTION PERFORMANCE USING AN ELEVATED PRESSURE COUNTERFLOW EXPERIMENT FOR REVERSE HYBRID ROCKET ENGINE
International Journal of Energetic Materials and Chemical Propulsion, Vol.11, 2012, issue 6
Grant A. Risha, Terrence L. Connell, Jr., Reed H. Johansson, Gregory Young, Richard A. Yetter
ENHANCED REACTIVITY OF ALUMINUM POWDERS BY CAPPING WITH A MODIFIED GLYCIDYL AZIDE POLYMER
International Journal of Energetic Materials and Chemical Propulsion, Vol.15, 2016, issue 6
Ricardo José Pontes Lima, Robert Stowe, Sophie Ringuette, Charles Dubois
INSENSITIVE HIGH ENERGY BOOSTER PROPELLANT SUITABLE FOR HIGH PRESSURE OPERATION
International Journal of Energetic Materials and Chemical Propulsion, Vol.6, 2007, issue 4
Alan D. Turner, May Lee Chan
MODIFIED BURNING RATE SPECTRUM & COMBUSTION MECHANISM OFTETRA-OLGAP
International Journal of Energetic Materials and Chemical Propulsion, Vol.6, 2007, issue 2
Kiyokazu Kobayashi, Yasushi Niimi, Makihito Nishioka, Sumito Togo, Keiichi Hori, Yoshio Seike, Toru Shimada