Results 11 to 20 of about 5,407 (249)

Optimal Heliocentric Orbit Raising of CubeSats with a Monopropellant Electrospray Multimode Propulsion System

open access: yesApplied Sciences
A Multimode Propulsion System (MPS) is an innovative spacecraft thruster concept that integrates two or more propulsion modes sharing the same type of propellant.
Alessandro A. Quarta   +2 more
doaj   +2 more sources

Pulse-mode Performance Evaluation of a Monopropellant Hydrazine Thruster [PDF]

open access: yesعلوم، فناوری و کاربردهای فضایی, 2023
In this study, the pulse mode performance of a monopropellant hydrazine thruster has been studied. For this purpose, a laboratory sample of a monopropellant hydrazine thruster under atmospheric pressure was fabricated and tested.
mohamad ali amirifar   +3 more
doaj   +1 more source

Catalytic effect of platinum and silver in a hydrogen peroxide monopropellant ceramic microthruster

open access: yesPropulsion and Power Research, 2020
Ceramic microthrusters with an embedded Pt resistive heater, two temperature sensors, and a Pt or Ag catalytic bed were made of high-temperature co-fired alumina ceramics. To increase the surface area by a factor of 1.21, and so the catalytic effect, the
Zahra Khaji   +3 more
doaj   +2 more sources

An Open-source Solver to Model the Catalytic Decomposition of Monopropellants for Space Thrusters [PDF]

open access: yesJournal of Aerospace Technology and Management, 2020
This paper presents a solver for the CFD (computational fluid dynamics) modeling of catalytic chambers in monopropellant thrusters based on the open-source OpenFOAM® (Open Field Operation and Manipulation) framework.
Jenny Robledo Asencio   +2 more
doaj   +2 more sources

Bioinspired Mechanisms and Actuation of Soft Robotic Crawlers. [PDF]

open access: yesAdv Sci (Weinh)
Researchers have been developing soft materials and robotic crawlers inspired by soft‐bodied animals to mimic effective crawling in complex environments. This review explores the state‐of‐the‐art in soft crawlers, highlighting the interaction between materials, crawling mechanisms, actuation, and applications. The review concludes by providing insights
Pan M   +6 more
europepmc   +2 more sources

Optimized Dimension Design of Catalytic Chamber of a 10 N Thruster [PDF]

open access: yesفصلنامه علوم و فناوری فضایی, 2023
In this paper, the catalyst bed of a 10 N hydrazine monopropellant thruster was designed. The catalyst bed is including iridium granules, which is used to decompose the hydrazine in monopropellant thruster.
Sajjad Davari   +3 more
doaj   +1 more source

Investigation on Performance Characteristics of Hydrazine Monopropellant Thruster according to Reaction Chamber Adiabatic Temperature [PDF]

open access: yesفصلنامه علوم و فناوری فضایی, 2022
In this paper, by creating and developing a code based on thermodynamics and gas dynamics equations, the performance characteristics of a 1N hydrazine monopropellant thruster such as thrust force, specific impulse, characteristic exhaust velocity, and ...
Seyyed Rashad Rouholamini   +3 more
doaj   +1 more source

Design and Simulation of Single Capillary Injector and Circular Injector Plate for a Monopropellant Thruster [PDF]

open access: yesفصلنامه علوم و فناوری فضایی, 2022
In this research, design and simulation of a single capillary injector and three-hole circular injector plate of a 10N Hydrazine monopropellant thruster were performed. Ansys Fluent software was used to simulate the injector and injector plate .
Sajad Davari, Hadiseh Karimaei
doaj   +1 more source

Design and Configuration of Ground Sample Components of Low Propulsion Monopropellant Thruster Using Some Engineering Software [PDF]

open access: yesفصلنامه علوم و فناوری فضایی, 2021
Monopropellant thruster are used to inject a satellite into orbit or control its position on three axes in space missions. One of them is hydrazine thruster which is widely used.
Sajjad Davari   +3 more
doaj   +1 more source

Review of State-of-the-Art Green Monopropellants: For Propulsion Systems Analysts and Designers

open access: yesAerospace, 2021
Current research trends have advanced the use of “green propellants” on a wide scale for spacecraft in various space missions; mainly for environmental sustainability and safety concerns.
Ahmed E. S. Nosseir   +2 more
doaj   +1 more source

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