Results 71 to 80 of about 4,408 (300)
Modeling of ignition and combustion of boron-containing solid propellants
, 2021 This paper presents the results of an experimental study of the ignition and slagging characteristics for combustion of boron-containing solid propellants with ammonium perchlorate as an oxidizer under conditions modeling the operation of the gas ...
Arkhipov, Vladimir A. +4 more
core +1 more source
Collision‐Resilient Winged Drones Enabled by Tensegrity Structures
Advanced Robotics Research, EarlyView.Based on structures of birds such as the woodpeck, this article presents the collision‐resilient aerial robot, SWIFT. SWIFT leverages tensegrity structures in the fuselage and wings which allow it to undergo large deformations in a crash, without sustaining damage. Experiments show that SWIFT can reduce impact forces by 70% over conventional structures.
Omar Aloui +5 more
wiley +1 more source
Cast composite solid propellants with different combustion stabilizers [PDF]
Scientific Technical Review, 2015 The effect of four different compounds as the combustion stabilizers of composite solid propellants based on the AP/HTPB/IPDI has been presented in this paper.
Rodić Vesna +3 more
doaj
Characterization of JP-8/SiO2 and RP-1/SiO2 Gels
, 2010 For next generation air-breathing and rocket propulsion systems gelled propellants can be a promising replacement for conventional solid and liquid propellants.
Santos, P. H. S. +4 more
core
Roles of the Interphase Stiffness and Percolation on the Behavior of Solid Propellants
, 2016 International audienceAtomic force microscopy has provided access to local moduli for propellants prepared with bonding agents, which create a stiffness gradient in the matrix producing a stiffer interphase surrounding the fillers. The reinforcing impact
DIANI, Julie +9 more
core +1 more source
Advanced Robotics Research, EarlyView.An introduction for multidrive and environment‐adaptive micro/nanorobotics: design and fabrication strategies, intelligent actuation, and their applications. Various intelligent actuation approaches—magnetic, acoustic, optical, chemical, and biological—can be synergistically designed to enhance flexibility and adaptive behavior for precision medicine ...
Aiqing Ma +10 more
wiley +1 more source
Low-Cost and Green Solid Propellants for Space Propulsion
, 2004 Ammonium Nitrate (AN), an inorganic solid oxidizer used in rocket propulsion decades ago, produces environmentally friendly combustion products and it is a very cheap energetic material. The main objective of this work is to propose AN-based formulations
GALFETTI, LUCIANO +7 more
core
Soft Robotic Snake with Tunable Undulatory Gait for Efficient Underwater Locomotion
Advanced Robotics Research, EarlyView.This study designs an underwater soft snake robot using 3D‐printed soft actuators, controlled by specific signals to generate sinusoidal undulation. Results show a positive correlation between speed and swing amplitude, with optimal performance at 2/3π phase offset, PLA tail, 1.2 voltage growth rate, and 6s undulation period achieving a maximum speed ...
Huichen Ma, Junjie Zhou, Raye Yeow
wiley +1 more source
Effects of Nano-Sized Al on the Combustion Performance of Fuel Rich Solid Rocket Propellants
Eurasian Chemico-Technological Journal, 2016 Several industrial- and research – type fuel rich solid rocket propellants containing nano-metric aluminum metal particles, featuring the same nominal composition, were prepared and experimentally analyzed.
W.Q. Pang +5 more
doaj +1 more source
Effect of Temperature on Mechanical Properties of Solid Rocket Propellants
, 2011 Mechanical properties of solid rocket propellants are dependent on temperature. Any change in temperature brings significant change in the tensile strength, percentage elongation, and elastic modulus of the propellant.
Shekhar, Himanshu
core +1 more source