Results 21 to 30 of about 1,557,568 (278)

A whole life assessment of extruded double base propellants

open access: yes, 2013
© Cranfield UniversityThe manufacturing process for solventless extruded double base propellants involves a number of rolling and reworking stages. Throughout these processes a decrease in weight average molecular weight was observed, this was attributed
Tucker, J
core   +7 more sources

Mechanical properties of thermal aged HTPB composite solid propellant under confining pressure

open access: yesDefence Technology, 2022
With the purpose of investigating the effects of confining pressure and aging on the mechanical properties of Hydroxyl-terminated polybutadiene (HTPB) based composite solid propellant, tensile tests of thermal accelerated aged propellant samples under ...
Zhe-jun Wang, Hong-fu Qiang
doaj   +1 more source

Strain-rate correlation of biaxial tension and compression mechanical properties of HTPB and NEPE propellants

open access: yesAIP Advances, 2022
An effective biaxial tension and compression test method is proposed based on the shortcomings of current research for the mechanical properties of solid propellants under complex stress states.
Qizhou Wang   +5 more
doaj   +1 more source

Safety analysis on truing process of solid propellant

open access: yesDefence Technology, 2018
In order to investigate safety character of solid propellant, the truing process was analyzed by a thermal-mechanical coupled finite element method. Based on the viscoelastic integral constitutive relation, the temperature response in truing process was ...
Jun Li, Qing-jie Jiao, Hui Ren
doaj   +1 more source

THE PROBLEM OF THE OPTIMIZATION THE DESIGN PARAMETERS AND CONTROL PROGRAMS OF THE CONTROLLED ROCKET WITH SOLID PROPELLANT ROCKET ENGINE

open access: yesАвіаційно-космічна техніка та технологія, 2017
The complex problem of the simultaneous optimization of the control programs and design parameters of the controlled single-stage rocket with cruise solid propellant rocket engine is formulated.
Светлана Васильевна Сюткина-Доронина
doaj   +1 more source

Agglomerate Size Evolution in Solid Propellant Combustion under High Pressure

open access: yesAerospace, 2023
Solid propellant combustion and flow are significantly affected by condensed combustion products (CCPs) in solid rocket motors. A new aluminum agglomeration model is established using the discrete element method, considering the burning rate and ...
Songchen Yue   +7 more
doaj   +1 more source

Development of Technology and Ballistic Research of the Propulsion Unit for 122 mm Rocket Missile with an Extended Range [PDF]

open access: yesProblemy Mechatroniki, 2015
The paper presents the results of ballistic studies on the demonstrator missile 122 mm rocket motor of an extended range with the heterogeneous solid propellant.
Bogdan FLORCZAK   +2 more
doaj   +1 more source

Ageing studies on AP/HTPB based composites solid propellants

open access: yesEnergetic Materials Frontiers, 2021
Components of solid rocket motor that are susceptible to ageing are propellant, insulator, inhibitor, interfaces, igniter system, and seals. Seals, insulator, ignition systems are replaceable but the motor would be recast when the deterioration in ...
Hamza Naseem   +3 more
doaj   +1 more source

Mechanical bonding of solid propellant elements with the case

open access: yesИзвестия Томского политехнического университета: Инжиниринг георесурсов, 2018
The relevance of work is caused by the need to increase the efficiency of oil production and the requirements to high-strength joints in places of bonding solid propellant with inner surface of the case. Solid propellant gas-generating devices are widely
Nadezhda Victorovna Polovnikova   +2 more
doaj   +2 more sources

Dry ice propellant for electric propulsion with triple-point storage [PDF]

open access: yes, 2023
Dry ice has been proposed as a propellant for electric propulsion, as its use may facilitate the realization of a low-cost propulsion system compared to that based on a xenon propellant.
Maki, Tatsuro   +3 more
core   +1 more source

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