Results 151 to 160 of about 2,289,829 (359)

An evaluation of aft-end ignition for solid propellant rocket motors [PDF]

open access: yes
Performance evaluation of solid propellant rocket motor ignition to determine igniter design and parameters to avoid ...
Fitch, R. E.   +2 more
core   +1 more source

Structural analysis of viscoelastic materials under thermal and pressure loading [PDF]

open access: yes, 1973
Technique computes stresses resulting from axisymmetric transient thermal loading in circular solid-propellant grain section with circular ports. Propellant is assumed to be linear, thermal rheologically simple, viscoelastic material; material properties
Chen, J. C.
core   +1 more source

Soft Robotic Snake with Tunable Undulatory Gait for Efficient Underwater Locomotion

open access: yesAdvanced 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

Propellant grain for rocket motors Patent [PDF]

open access: yes, 1965
Grain configuration for solid propellant rocket ...
Pierce, R. M.
core   +1 more source

Multi‐Material Additive Manufacturing of Soft Robotic Systems: A Comprehensive Review

open access: yesAdvanced 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

Demonstration of a sterilizable solid rocket motor system [PDF]

open access: yes
A solid propellant rocket motor containing 60.9 Kg (134-lb) of propellant was successfully static fired after being subjected to eight heat sterilization cycles (three 54-hour cycles plus five 40-hour cycles) at 125 C (257 F).
Lambert, W. L.   +2 more
core   +1 more source

Strong‐Magnetic Flexible Composites for Magnetically Responsive Soft Robots

open access: yesAdvanced 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

Imaging Aluminum Particles in Solid-Propellant Flames Using 5 kHz LIF of Al Atoms. [PDF]

open access: yesMaterials (Basel), 2019
Vilmart G   +5 more
europepmc   +1 more source

An evaluation of the post-ignition unblocking behavior of solid propellant aft-end ignition systems Final report [PDF]

open access: yes
Determining postignition interactions between igniter and main motor flow by aft-end heated air simulation of solid propellant ...
Fitch, R. E.   +2 more
core   +1 more source

Hard‐Magnetic Soft Millirobots in Underactuated Systems

open access: yesAdvanced 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

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