Results 1 to 10 of about 28,947 (287)

Effect of cyclic loads on structural damage of rocket propellant grain [PDF]

open access: diamondScientific Technical Review, 2019
Rocket motor propellant grain, cast or bonded into the motor chamber or solid coating, is exposed to various loads during its service life. Rocket propellant is a viscoelastic material, whose mechanical properties strongly depend on temperature and ...
Gligorijević Nikola   +5 more
doaj   +2 more sources

Designing the bioproduction of Martian rocket propellant via a biotechnology-enabled in situ resource utilization strategy [PDF]

open access: yesNature Communications, 2021
Returning from Mars to Earth requires propellant. The authors propose a biotechnology-enabled in situ resource utilization (bioISRU) process to produce a Mars specific rocket propellant, 2,3-butanediol, using cyanobacteria and engineered E.
Nicholas S. Kruyer   +4 more
doaj   +2 more sources

Research on Vision-based Position Measurement System for Rocket Propellant Loading [PDF]

open access: yesE3S Web of Conferences, 2021
In the process of rocket propellant loading, the propellant's own gravity and wind pendulum may cause the connector to exert a large force on the rocket body, which may lead to connector disconnection and fuel leakage, or even damage to the rocket body ...
Han Tao, Dacheng Cong
doaj   +1 more source

Investigations on the thermal response of a solid rocket motor with complex charge structure using CL-20/GAP propellant

open access: yesCase Studies in Thermal Engineering, 2022
The thermal safety of a solid rocket motor with a complex charge structure using CL-20 (Hexanitrohexaazaisowurtzitane)/GAP (Glycidyl Azide Polymer) propellant was evaluated. The morphology and thermal decomposition properties of the propellant were first
Yiyao Wang   +5 more
doaj   +1 more source

Application of electric thrusters in a spacecraft propulsion system [PDF]

open access: yesКосмические аппараты и технологии, 2022
The place of electric rocket thrusters in a spacecraft propulsion system is pointed out; the tasks for such propulsion system are described. The modern classification of electric thrusters is given, in accordance of that one there are four classes ...
N. E. Kovalenko, A. A. Vnukov
doaj   +1 more source

Investigations on Internal Ballistic Characteristics of Pasty Propellant Rocket Engine

open access: yesInternational Journal of Aerospace Engineering, 2021
Pasty rocket engines have broad application prospects in the aerospace field. To study the internal ballistic characteristics of the pasty propellant rocket engine, the burning surface change model of pasty propellant was built.
Xinyou Shan   +5 more
doaj   +1 more source

Hydrogen as a Nuclear Thermal Rocket Propellant

open access: yesBrazilian Journal of Radiation Sciences, 2022
Nuclear Thermal Propulsion (NTP) is a successfully developed technology, though it hasn’t been officially used in the propulsion system of an astronautical mission. It is the technology most likely to make long distance journeys in space possible.
Antonella Lombardi Costa   +4 more
doaj   +1 more source

Numerical Simulation of Chemical Propulsion Systems: Survey and Fundamental Mathematical Modeling Approach

open access: yesAerospace, 2023
This study deals with the mathematical modeling and numerical simulation of chemical propulsion systems (CPSs). For this, we investigate and summarize a comprehensive collection of the simulation modeling developments of CPSs in academic works ...
Jihyoung Cha
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

Structural response analysis of a solid rocket motor with HTPB propellant grain under vertical storage condition

open access: yesXibei Gongye Daxue Xuebao, 2022
Aiming at the structural response characteristics of solid rocket motor (SRM) under vertical storage conditions, the creep tests of HTPB propellant under different stress levels were carried out, and the creep constitutive model of the propellant was ...
CHEN Ke   +4 more
doaj   +1 more source

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