Results 31 to 40 of about 7,227 (196)

Research on Solving the Structural Instability of Composite Propellants by Using Non-Ablative Cladding Layers

open access: yesAerospace
In a high-temperature test of the gas generator with a free-loading composite propellant, an abnormal jitter appeared in the latter part of the internal ballistic curve, whereas no such abnormality was observed in the low-temperature and normal ...
Gang Zhang   +5 more
doaj   +1 more source

On-line Monitoring of SRM Grain Structure Based on embedded FBG Sensor

open access: yesMATEC Web of Conferences, 2019
This paper proposes the use of FBG (Fiber Bragg grating) sensors for SRM (Solid Rocket Motor) grain structure continuous Structural Health Monitoring(SHM) as they are generally considered as the preferable solution in flammable and explosive environments,
Zhang Lei   +4 more
doaj   +1 more source

Starter propellants and auxiliary generators for gas turbines [PDF]

open access: yes, 1970
Study relates geometry of an internally burning, single, solid-propellant grain to propellant characteristics, engine requirements, and selected starting pressure.
Gill, G. S.
core   +1 more source

Reverse design of solid propellant grain based on deep learning: Imaging internal ballistic data

open access: yesDefence Technology
The reverse design of solid rocket motor (SRM) propellant grain involves determining the grain geometry to closely match a predefined internal ballistic curve. While existing reverse design methods are feasible, they often face challenges such as lengthy
Lin Sun   +6 more
doaj   +1 more source

Reliability of solid rocket propellant grain under simultaneous action of multiple types of loads [PDF]

open access: yesScientific Technical Review, 2016
A case-bonded solid propellant rocket grain is subjected to many stress-inducing loads during the service life, due to temperature, extended polymerization, transportation, vibration, acceleration, aerodynamic heating etc.
Gligorijević Nikola   +6 more
doaj  

Technique to Assess Aging of Propellant Grain

open access: yesChinese Journal of Aeronautics, 2006
AbstractPhysical properties of composite propellants used in solid rocket motors change significantly with age. To predict the margin of safety and to reevaluate the remaining service life, the structural integrity analysis of solid propellant grains of aged rocket motors is pa-formed at various stages of their life span.
MUHAMMAD, Majd-ud-din   +2 more
openaire   +1 more source

Spherically-shaped rocket motor Patent [PDF]

open access: yes, 1964
Spherical solid propellant rocket engine having abrupt ...
Odonnell, T. J.
core   +1 more source

3D RECONSTRUCTION AND ANALYSIS OF THE FRAGMENTED GRAINS IN A COMPOSITE MATERIAL

open access: yesImage Analysis and Stereology, 2013
X-ray microtomography from solid propellant allows studying the microstructure of fragmented grains in damaged samples. A new reconstruction algorithm of fragmented grains for 3D images is introduced.
Luc Gillibert, Dominique Jeulin
doaj   +1 more source

Macroscopic and mesoscopic properties of HTPB propellant under low temperature dynamic biaxial compression loading

open access: yesPolymer Testing, 2023
In order to study the macroscopic mechanical properties and meso damage mechanism of solid fuel hydroxy-terminated polybutadiene (HTPB) propellant under low temperature and dynamic biaxial compression loading, the INSTRON high strain rate hydraulic ...
Tingjing Geng   +5 more
doaj   +1 more source

Numerical Analysis of Solid Rocket Motor Instabilities With AP Composite Propellants [PDF]

open access: yes, 1999
A non-steady model for the combustion of ammonium perchlorate composite propellants has been developed in order to be incorporated into a comprehensive gasdynamics model of solid rocket motor flow fields.
Beddini, Robert A.   +3 more
core  

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