Artificial aging of crosslinked double base propellants
, 2010 Bu çalışmada, 2-nitrodifenilamin (2-NDPA) ve n-metil-4-nitroanilin (MNA) kararlılık arttırıcıları kullanılarak üretilen üç farklı çapraz bağlı çift bazlı (XLDB) roket yakıtının raf ömürleri, kararlılık arttırıcı miktarlarındaki azalımın takip edilmesi yöntemiyle belirlenmiştir.
openaire +2 more sources
Electrothermal thruster diagnostics. Volume 1: Executive summary [PDF]
A flight-qualified electrothermal thruster demonstrated its adaptability to a variety of propellants. Originally qualified for operation with hydrazine propellant, it was operated with nitrogen, hydrogen, and ammonia propellants, demonstrating 73, 61 ...
Jackson, B., Zafran, S.
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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
Study of advanced bladder technology, OF2 diborane Final report, 2 Sep. 1969 - 1 Jul. 1970 [PDF]
Development and characteristics of elastomeric materials for positive expulsion ...
Jones, J. F., Martin, J. W., Neff, J. A.
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Multi‐Material Additive Manufacturing of Soft Robotic Systems: A Comprehensive Review
Advanced Robotics Research, EarlyView.This review explores the transformative role of multi‐material additive manufacturing (MMAM) in the development of soft robotic systems. It presents current techniques, materials, and design strategies that enable functionally graded and adaptive structures.
Ritik Raj +2 more
wiley +1 more source
A Perspective on the Use of Storable Propellants for Future Space Vehicle Propulsion [PDF]
Propulsion system configurations for future NASA and DOD space initiatives are driven by the continually emerging new mission requirements. These initiatives cover an extremely wide range of mission scenarios, from unmanned planetary programs, to manned ...
Boyd, William C., Brasher, Warren L.
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Strong‐Magnetic Flexible Composites for Magnetically Responsive Soft Robots
Advanced Robotics Research, EarlyView.This perspective provides an overview of the performance mechanisms, preparation methods, and applications of strong magnetic flexible composite materials in soft actuators (such as gripping, movement, and sensing), and further explores current opportunities and challenges.
Wenwen Li +4 more
wiley +1 more source
Chemical species and chemical reactions of importance in nonequilibrium performance calculations [PDF]
Computer programs to determine inviscid one dimensional and axisymmetric nonequilibrium nozzle flow ...
Gold, P. I., Weekley, C. T.
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Hard‐Magnetic Soft Millirobots in Underactuated Systems
Advanced Robotics Research, EarlyView.This review provides a comprehensive overview of hard‐magnetic soft millirobots in underactuated systems. It examines key advances in structural design, physics‐informed modeling, and control strategies, while highlighting the interplay among these domains.
Qiong Wang +4 more
wiley +1 more source
Comparative analysis of the designs and implementation of vehicles based on reactive propulsion proposed during the nineteenth and beginning of the twentieth centuries [PDF]
Examination of the presently known historical scientific literature related to the problem of reactive flight indicates that considerable attention had already been given to the idea of reactive propulsion in the nineteenth century; about thirty designs ...
Sokolskiy, V. N.
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