Results 41 to 50 of about 38,554 (239)
Mechanical properties of HTPB propellants: Recent advances and underlying mechanisms
Energetic Materials FrontiersHydroxyl-terminated polybutadiene (HTPB)-based composite solid propellants (CSPs) are widely used in solid rocket motors due to their excellent mechanical properties and low cost.
Wasiullah Qazi +3 more
doaj +1 more source
Propellants, Explosives, Pyrotechnics, EarlyView.A low‐speed impact (around one meter per second) of a metallic tip on an explosive confined by a thin plate is simulated. The heat due to friction between the tip and the plate and the one due to the deformation of the plate are not transfered to the ignited zone.
Lucas Bonneau, Didier Picart
wiley +1 more source
Modelling Rocket System Performance Parameters
Academy Journal of Science and Engineering, 2022 What distinguishes the rocket system from airbreathing engines is that the rocket carries its own propellants, fuel and oxidants. The modern rocket was originally developed for ballistic missiles.
Nnorom Achara
doaj
Propellants, Explosives, Pyrotechnics, EarlyView.Ammonium dinitramide (ADN) and 3,4‐Diaminofurazan (DAF) form a 1:1 energetic cocrystal. We report its crystal structure and spectroscopic signature and evaluate thermal stability, decomposition behavior, hygroscopicity, and combustion properties. Propellant performance calculations benchmark the material against guanylurea dinitramide (GuDN) and ...
Peter Schultz +2 more
wiley +1 more source
Results in EngineeringPropellant combustion in a combustor offers a promising method for environmentally sound disposal but is limited by insufficient theoretical and experimental research.
Chenzhuo Hao +4 more
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Characterization of Ultrafast Decomposition Dynamics in Nitrate Esters
Propellants, Explosives, Pyrotechnics, EarlyView.ABSTRACT Ignition of energetic materials initiates chemical reactions on atomic length scales within femtoseconds, making these reactions difficult to investigate experimentally. The technique of femtosecond time‐resolved mass spectrometry (FTRMS) can capture molecular rearrangement and bond‐breaking events in isolated molecules with sub‐50 femtosecond
Madison K. Minvielle +3 more
wiley +1 more source
Recent advances in the development of ammonia borane for both energetic and energy storage materials
Propulsion and Power ResearchAmmonia borane (NH3BH3) has garnered significant attention as a high-potential hydrogen storage material owing to its exceptional hydrogen content of 19.6 wt%.
Rui Pu +3 more
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Survey on AI‐Enabled Computer Vision Technologies and Applications for Space Robotic Missions
Journal of Field Robotics, EarlyView.ABSTRACT This survey provides a comprehensive overview of recent advancements and challenges in Artificial Intelligence (AI)‐enabled computer vision (CV) techniques for space robotic missions, spanning critical phases such as Entry, Descent, and Landing (EDL), orbital operations, and planetary surface exploration.
Maciej Quoos +6 more
wiley +1 more source
AerospaceThe unsteady combustion of solid propellants under oscillating environments is the key to understanding the combustion instability inside solid rocket motors. The discontinuous Galerkin–finite element method (DG-FEM) is introduced to provide an efficient
Zhuopu Wang, Kairui Yu, Yuanzhe Liu
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Maintaining technical excellence requires a national plan [PDF]
To meet the challenge of technical excellence, AIA established a rocket propulsion committee to develop the National Rocket Propulsion Strategic Plan. Developing such a plan required a broad spectrum of experience and disciplines. The Strategic Plan team
Davidson, T. F.
core +1 more source