Results 251 to 260 of about 12,543 (287)
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Platonization in double-base rocket propellants
AIAA Journal, 1977HE inclusion of small quantities of various lead compounds in the double-base propellant system results in increased burning rate at low pressure, followed by a plateau burning region, where the burning rate remains almost independent of variation in pressure, and the postplateau region, in which the burning rate/pressure relationship is similar to ...
Haridwar Singh, K. R. K. Rao
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Hot-Particle Ignition of Double-Base Propellants
Journal of Spacecraft and Rockets, 1975The effect of hot oxide particles from an igniter impinging on the surface of a double-base propellant has been simulated by means of heated wires having thermocouples attached. From observations of the rate of cooling and whether this led to ignition, energy relationships are established for a range of initial pressures and temperatures which confirm ...
K.M. Siddiqui, I.E. Smith
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Capillary gas chromatography of double-base propellants
Chromatographia, 1996The separation and quantitative determination of propellant constituents on short, wide-bore fused-silica capillary columns, coated with crosslinked methylsilicone phase was investigated. The analytical results were quite satisfactory.
M. Stankovic, B. Vujovic, M. Filipović
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Nonlinear Viscoelastic Analysis of Double Base Propellant
Advanced Materials Research, 2012This study presents the characterization of the nonlinearly viscoelastic behavior of double base propellant (DBP) using Schapery-type constitutive model in the different conditions of temperature, strain level and strain rate. A recursive-iterative numerical algorithm is generated for the Schapery-type nonlinearly viscoelastic constitutive and ...
Jin Sheng Xu +2 more
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A model for double base propellant combustion
16th Joint Propulsion Conference, 1980The Beckstead-Derr-Price (BDP) monopropellant model that was originally developed as a limiting case for composite propellants has been modified and applied to double-base propellants. The work was performed with the intent of applying the model to modern double-base systems of interest in rocket propulsion.
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Radiative Pyrolysis of a Double-Base Propellant
45th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2009The overall objective of this research is to augment our understanding of the thermophysical and chemical processes involved in the electro-thermal-chemical ignition of solid propellants. To understand the role of radiation, a double-base propellant known as JA2 was considered.
Malay Das, Stefan Thynell
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Thermal Reactivity of Double‐Base Rocket Propellants
Propellants, Explosives, Pyrotechnics, 1979AbstractThermal decomposition studies on double‐base propellants have been carried out in air and vacuum using differential scanning calorimetric, thermogravimetric and mass spectrometric techniques. Low temperature (90 °C–170 °C) decomposition seems to involve diffusion controlled process, the mechanism in air and vacuum being different.
Verneker, Pai VR +2 more
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Flame Zone Spectroscopy of Solid Propellants II Double Base Propellant JPN*
Journal of the Optical Society of America, 1956With the aid of the automatic-feed strand bomb previously described [ R. G. Rekers D. S. Villars , Rev. Sci. Instr.25, 424– 429 ( 1954)], spectra of JPN burning in nitrogen have been investigated over the visible and ultraviolet. Throughout the pressure range, 300 to 500 psi nitrogen, emission from the flame zone exhibits a continuous background which
R. G. Rekers, D. S. Villars
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Erosive burning mechanism of double-base propellants
Symposium (International) on Combustion, 1988Measurements of the combustion wave structure of solid propellants with and without cross-flow conditions were conducted to elucidate the mechanism of erosive burning. The propellants tested were three types of double-base propellants containing different energy levels: a lowenergy, a reference, and a high-energy propellant.
A. Ishihara, N. Kubota
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Combustion mechanisms of double base solid propellants
Symposium (International) on Combustion, 1979The combustion mechanisms of double base propellants in the presence of plateau or mesa producing additives are investigated. The propellant regression is the result of an interaction between condensed and gas phases processes. The condensed phase degradation, could be a prime site for the action of the additive.
Guy Lengellé +4 more
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