Results 51 to 60 of about 22,464 (227)
Attitude controls for VTOL aircraft Patent [PDF]
, 1969 Development of attitude control system for vertical takeoff aircraft using reaction nozzles displaced from various axes of ...
Pauli, F. A.
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Advanced Intelligent Systems, Volume 8, Issue 3, March 2026.Insect‐scale crawling robots can traverse confined environments; nevertheless, their functionalities are predominantly restricted to sensing because of challenges in integrating actuated degrees of freedom. Herein, a miniature rotary electrostatic clutch is presented by incorporating cutting patterns in the clutch layer.
Jongeun Lee +4 more
wiley +1 more source
Anti-backlash circuit for hydraulic drive system Patent [PDF]
, 1966 Antibacklash circuit for hydraulic drive ...
Acord, J. D.
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Advanced Intelligent Systems, Volume 8, Issue 3, March 2026.Female desert locusts dig underground to lay their eggs. They displace soil, rather than removing it, to create a tunnel. We analyze burrowing dynamics and 3D kinematics and design a locust‐inspired hybrid soft–stiff robot that reproduces this mechanism. The results show the natural strategy minimizes energy, whereas alternative patterns raise costs up
Shai Sonnenreich +2 more
wiley +1 more source
Failure Mechanism of Asymmetric Large Deformations Under Repeated Mining in Roadways
Energy Science &Engineering, Volume 14, Issue 3, Page 1195-1212, March 2026.Principal stress‐evolution diagram at different advance positions of 42205 working face. ABSTRACT To address the challenge of controlling severe asymmetrical deformation in roadways subjected to repeated mining, this study (i.e., based on the engineering context of the Buertai Coal Mine) investigated the characteristics of the regional stress field in ...
Ai‐Rong Wang +3 more
wiley +1 more source
Recent Advances in Variable‐Stiffness Robotic Systems Enabled by Phase‐Change Materials
Advanced Robotics Research, Volume 2, Issue 1, February 2026.Phase‐change materials (PCMs), such as shape memory alloys, hydrogels, shape memory polymers, liquid crystal elastomers, and low‐melting‐point alloys, are driving advancements in stiffness‐tunable robotic systems across a wide range of applications. This review highlights recent progress in PCM‐enabled robotics, focusing on their underlying mechanisms,
Sukrit Gaira +5 more
wiley +1 more source
Research on Dynamic Reliability of a Jet Pipe Servo Valve Based on Generalized Stochastic Petri Nets
International Journal of Aerospace Engineering, 2015 The jet pipe servo valve is widely used in the military fields of aviation and ship, whose reliability has obvious randomness and dynamic. However, existing methods are either having complicated theory or analyzing static reliability.
Yuanbo Chu, Zhaohui Yuan, Jia Chen
doaj +1 more source
DEVELOPMENT OF LINEAR MOTOR SERVO VALVE
Proceedings of the JFPS International Symposium on Fluid Power, 1996 Primarily in use at present is the nozzle flapper type servo valve providing with a torque motor.It is not in all cases appropriate for construction machines requiring large flow, owing to small control flow of the nozzle flapper.To deal with this situation, the linear motor servo valve using a magnet for a proportional solenoid has been developed.By ...
Ken Ichiryu +2 more
openaire +2 more sources
Quick-response servo amplifies small hydraulic pressure differences [PDF]
, 1966 Hydraulic servo, which quickly diverts fluid to either of two actuators, controls the flow rates and pressures within a hydraulic system so that the output force of the servo system is independent of the velocity of the mechanism which the system ...
Wiegard, D. E.
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Engineering Reports, Volume 8, Issue 2, February 2026.Two‐degree‐of‐freedom manipulator driven by PAM. ABSTRACT Rehabilitation robots are machines that allow patients to perform practice movements and ought to be sufficiently compliant for safe human interaction. Most robots today use hydraulic systems and continually rotating servo motors, making them less suitable for rehabilitation.
Solomon Ferede Ezez +2 more
wiley +1 more source