Demonstration of a sterilizable solid rocket motor system [PDF]
A solid propellant rocket motor containing 60.9 Kg (134-lb) of propellant was successfully static fired after being subjected to eight heat sterilization cycles (three 54-hour cycles plus five 40-hour cycles) at 125 C (257 F).
Lambert, W. L. +2 more
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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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Numerical Analysis of Curing Residual Stress and Strain in NEPE Propellant Grain. [PDF]
Polymers (Basel), 2023 Liu X, Xie X, Zhou D, Wang R.
europepmc +1 more source
Design and Optimization of Modular Solid Rocket Grain Matching Multi-Thrust Performance Curve
Applied SciencesMulti-thrust solid rocket motors are extensively used in tactical missiles. To effectively achieve the desired multi-thrust performance curve, firstly, the concept of modular grain is introduced.
Wentao Li +3 more
doaj +1 more source
Modeling of combustion processes of stick propellants via combined Eulerian-Lagrangian approach [PDF]
This research is motivated by the improved ballistic performance of large-caliber guns using stick propellant charges. A comprehensive theoretical model for predicting the flame spreading, combustion, and grain deformation phenomena of long, unslotted ...
Athavale, M. M. +2 more
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The Analytical Method to Compute the Strain on the Soft PSD in Double-Pulse SRM
International Journal of Aerospace Engineering, 2019 In order to obtain the analytical method to compute the circumferential strain on a soft pulse separation device (PSD), deformation processes of the middle section of the soft PSD, the medicine propellant grain and the case are simplified into a two ...
Chunguang Wang, Guiyang Xu
doaj +1 more source
Optimization design of anti-creep reinforcement structure for solid rocket motor propellant grain
Jixie qiangduTo address the creep issue that arises during the long-term vertical storage of solid rocket motor (SRM), a method was proposed that involved embedding a specially shaped functional combustible core model (reinforcement structure)into the propellant ...
LIU Mengyang +3 more
doaj
Study on the Burning of Grain-molded Propellant
Energy Procedia, 2015 AbstractThe investigation of the burning of grain-molded propellant comprises progressive burning, ignition and internal ballistic property. The grain-molded propellant is extruded by high energy nitramine propellant in the professional mould. The grain-molded propellant was studied by closed-bomb test, ignition simulation equipment test and 30mm ...
Yao, Yue-Juan +5 more
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Solid propellant rocket motor internal ballistics performance variation analysis, phase 3 [PDF]
Results of research aimed at improving the predictability of off nominal internal ballistics performance of solid propellant rocket motors (SRMs) including thrust imbalance between two SRMs firing in parallel are reported. The potential effects of nozzle
Adams, G. W., Jr. +3 more
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Determination of failure limits for sterilizable solid rocket motor [PDF]
A structural evaluation to establish probable failure limits and a series of environmental tests involving temperature cycling, sustained acceleration, and vibration were conducted on an 18-inch diameter solid rocket motor. Despite the fact that thermal,
Lambert, W. L. +2 more
core +1 more source