Results 41 to 50 of about 3,658 (232)
Propellant-powered actuator for gas generators [PDF]
Hydrazine operated monopropellant generators are used for spacecraft rocket engines and propellant pressurization systems.
Makowski, M. J.
core +1 more source
Servo-Stabilization of Low-Frequency Oscillations in a Liquid Bipropellant Rocket Motor [PDF]
The recent work of H. S. Tsien concerning the servostabilization of rocket motors is extended to the liquid bipropellant rocket motor. It is shown that by use of a feedback system containing a device to sense the combustion chamber pressure, a suitably ...
Cox, Dale W., Jr., Marble, Frank E.
core +1 more source
Stimuli‐Responsive Electrofluidic Nervous System for Autonomous Soft Robots
A stimuli‐responsive electrofluidic nervous system (SENS) is introduced to achieve sensing, signal processing, and decision‐making using soft materials. Comprising fluidic switches and electroactive actuators, SENS enables multimodal stimuli‐responsiveness and autonomous control in soft robots.
Dip Kumar Saha +3 more
wiley +1 more source
Thermal Decomposition of Ammonium Dinitramide (ADN) as Green Energy Source for Space Propulsion
The thermal decomposition of an ammonium dinitramide-based energetic compound was conducted for the first time using a dispersive inductively coupled plasma mass spectrometer, DTA-TG analysis, and pyrolysis at a constant temperature. A liquid droplet was
Zakaria Harimech +4 more
doaj +1 more source
Ignition system for monopropellant combustion devices Patent [PDF]
Ignition system for monopropellant combustion ...
Chilenski, J. J.
core +1 more source
A Comment on the Computed Performance of Hexanitrogen C2h‐N6 as an Explosive
ABSTRACT Although N6 is not stable at ambient temperature and pressure, the detonation performance (velocity, pressure, and heat of detonation) of molecular N6 was investigated using quantum chemical calculations and results from thermochemical calculations.
Thomas M. Klapötke +2 more
wiley +1 more source
Low thrust monopropellant engine [PDF]
The engine has a conventional body and nozzle configuration. The monopropellant fuel is fed into the thruster with dual injection tubes via an injector shell with dual spray jets. The spray jets are positioned generally opposed to each other.
Kuenzly, J. D.
core +1 more source
Additive manufacturing (AM) transforms space hardware by enabling lightweight, high‐performance, and on‐demand production. This review outlines AM processes—powder bed fusion (PBF), directed energy deposition (DED), binder jetting (BJ), sheet lamination (SL), and material extrusion (ME)—applied to propulsion, satellite structures, and thermal devices ...
Stelios K. Georgantzinos +8 more
wiley +1 more source
Green propellants are usually defined as low-hazard, low-toxicity, environmentally friendly propellants that are considered safe during various phases of spacecraft development, launch, and operations. Such propellants provide safe handling and storability when compared to conventional toxic propellants such as hydrazine and its derivatives that ...
Nosseir, Ahmed Emadeldin Sayed +2 more
openaire +1 more source
ABSTRACT Hydrazinium nitroformate (HNF) is a chlorine‐free, high‐energy oxidizer with promising applications in green propulsion systems. This review examines the thermal decomposition, combustion kinetics, flame structure, and behavior of HNF, while critically evaluating the current body of literature.
Lakshay Bansal +2 more
wiley +1 more source

