Results 31 to 40 of about 12,615 (302)
A MEMS-based solid propellant microthruster array for space and military applications [PDF]
, 2015 Since combustion is an easy way to achieve large quantities of energy from a small volume, we developed a MEMS based solid propellant microthruster array for small spacecraft and micro-air-vehicle applications.
Chaalane, A +9 more
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The effect of strain rate on compressive behavior and failure mechanism of CMDB propellant
Defence Technology, 2022 The compressive mechanical behavior of composite modified double base (CMDB) propellant was investigated across a wide scope of strain rates ranging from 10−3 s−1 to 4210 s−1 at room temperature, by applying a conventional universal testing machine and a
Heng-ning Zhang +4 more
doaj +1 more source
Simulation of gelled propellant doughs isothermal flow through extrusion dies using finite difference method [PDF]
, 2017 During the ram extrusion of gelled propellants, the possible flow instabilities can affect the extruded propellant quality. The numerical modelling helps to enhance the geometry of extrusion die, by minimizing the product distortion caused by material ...
Faura Mateu, Félix +4 more
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Journal of Aerospace Technology and Management, 2019 Thermal insulation inside the rocket motor experience severe pressure and temperature conditions. Experimental determination of heat flux imparted to thermal insulator inside the rocket motor during the static fi ring is a challenging task.
Rakesh Kumar Kalal +3 more
doaj +2 more sources
CHIMIA, 2004 A systematic overview of the different types of solid propellants, their chemical compositions, characteristics and practical applications is given.
Patrick Folly, Peter Mäder
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Microstructural simulations of debonding, nucleation, and crack propagation in an HMX-MDB propellant
Materials & Design, 2021 The modeling of the deformation and failure process of a cyclotetramethylene tetranitramine modified double-base (HMX-MDB) propellant based on the microstructure is of great importance for its manufacturing process and storage lifetime.
Yufei Hou +3 more
doaj +1 more source
Novel approach to quantify the chemical stability and shelf life of modified double-base propellants
Defence Technology, 2018 Double-base (DB) propellant is vulnerable to auto-catalytic decomposition reactions during storing with the evolution of nitrogen oxides. Modified DB propellant based on energetic nitramines (RDX) can offer enhanced thrust and action time.
Ashraf M.A. Elghafour +4 more
doaj +1 more source
Numerical analysis of transient combustion response to acoustic oscillations in axisymmetric rocket motors [PDF]
, 1998 A numerical analysis of unsteady motions in solid rocket motors with a nozzle has been conducted. The formulation treats the complete conservation equations for the gas phase and the one-dimensional equations in the radial direction for the condensed
Culick, F. E. C., Roh, T. S.
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Transient combustion responses of homogeneous propellants to acoustic oscillations in axisymmetric rocket motors [PDF]
, 1997 A numerical analysis of unsteady motions in solid rocket motors has been conducted. The formulation considers a 2-D axisymmetric combustion chamber and a choke nozzle, and treats the complete conservation equations accounting for turbulence closure ...
Culick, F. E. C., Roh, T. S.
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Vojnotehnički Glasnik, 2001 The investigation included experimental and theoretical studies of internal ballistic characteristics with a particular attention to erosive rate burning in function of propellant-motor system geometric parameters.
Lajoš Tot , Panto Maslak
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