Results 101 to 110 of about 5,057 (307)
Static internal performance of an axisymmetric nozzle with multiaxis thrust-vectoring capability [PDF]
An investigation was conducted in the static test facility of the Langley 16 Foot Transonic Tunnel in order to determine the internal performance characteristics of a multiaxis thrust vectoring axisymmetric nozzle.
Capone, Francis J. +1 more
core +1 more source
Advanced Robotics Research, EarlyView.Robots can learn manipulation tasks from human demonstrations. This work proposes a versatile method to identify the physical interactions that occur in a demonstration, such as sequences of different contacts and interactions with mechanical constraints.
Alex Harm Gert‐Jan Overbeek +3 more
wiley +1 more source
Modeling of processes in porous thermal throttles for iodine flow control for space applications
Results in EngineeringThere has been a notable surge in the advancement of space technology across various applications - from dynamic missions, such as remote sensing of the Earth to missions involving servicing other satellites or collecting debris.
Pavel O. Savelev +2 more
doaj +1 more source
Nonlinear feedback control for high alpha flight [PDF]
Analytical aerodynamic models are derived from a high alpha 6 DOF wind tunnel model. One detail model requires some interpolation between nonlinear functions of alpha.
Stalford, Harold
core +1 more source
TreeSpider: In‐Canopy Exploration With Tether‐Based Aerial Modular Arms
Advanced Robotics Research, EarlyView.A tethered drone with perching arms and a 360° ring enables unprecedented maneuverability within dense forest canopies. By dynamically adjusting tether length and decoupling pitch from the frame, it navigates between branches, senses multiple trees, and interacts physically with foliage.
Luca Romanello +7 more
wiley +1 more source
Advanced Robotics Research, EarlyView.This review identifies key design considerations for insect‐inspired microrobots capable of multimodal locomotion. To draw inspiration, biological and robotic strategies for moving in air, on water surfaces, and underwater are examined, along with approaches for crossing the air–water interface.
Mija Jovchevska +2 more
wiley +1 more source
Robotic Pectoral Fin Thrust Vectoring Using Weighted Gait Combinations
Applied Bionics and Biomechanics, 2012 A method was devised to vector propulsion of a robotic pectoral fin by means of actively controlling fin surface curvature. Separate flapping fin gaits were designed to maximize thrust for each of three different thrust vectors: forward, reverse, and ...
John S. Palmisano +4 more
doaj +1 more source
Techniques utilized in the simulated altitude testing of a 2D-CD vectoring and reversing nozzle [PDF]
Simulated altitude testing of a two-dimensional, convergent-divergent, thrust vectoring and reversing exhaust nozzle was accomplished. An important objective of this test was to develop test hardware and techniques to properly operate a vectoring and ...
Block, H. Bruce +6 more
core +1 more source
, 1972 Supersonic two-dimensional flow from a nozzle with the exit plane inclined to the central axis of the nozzle will be turned if the exit pressure of the nozzle is not matched to the external pressure. The direction and magnitude of the flow deflection angle and the resulting deflection force is a function of the exit pressure of the nozzle, the exit ...
openaire +1 more source
Asymmetry in Skipping Enhances Viability Against Control Input Noise
Advanced Robotics Research, EarlyView.Quadruped animals use asymmetric galloping gaits at high speeds, yet the functional role of this asymmetry remains unclear. This study shows that left–right asymmetry in touchdown angles enhances robustness to control noise. Using a simple two‐legged locomotion model and viability theory, it demonstrates that asymmetric skipping substantially enlarges ...
Yuichi Ambe, Alvin So, Shinya Aoi
wiley +1 more source