Results 41 to 50 of about 22,604 (228)
Mechanically limited, electrically operated hydraulic valve system for aircraft controls Patent [PDF]
, 1959 Development of aircraft control system with high performance electrically controlled and mechanically operated hydraulic valves for precise flight ...
Foster, J. V.
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Energy Science &Engineering, EarlyView.A numerical model of variable‐speed pumped storage unit (VSPSU) with full‐size converter (FSC) under fast speed control strategy is established. Additionally, the correctness of the model was validated by comparing with SIMSEN simulation results and text prototype data from NARI.
Weijia Yang +5 more
wiley +1 more source
Modelling, transient response and hydraulic behaviour of 2DOF stabilization platform [PDF]
FME Transactions, 2020 The main part of the hydraulic circuit of the hydraulic stabilization platform (HSP) is the electro-hydraulic servo valve (EHSV), which is very expensive due to its manufacturing requirements, so the proper selection for the geometrical configuration of ...
Ibrahim Ezz Eldin +3 more
doaj
International Journal of Mechanical System Dynamics, EarlyView.ABSTRACT Hydraulic manipulators exhibit strong coupling, pronounced nonlinearities, and significant modeling uncertainties, which hinder high‐precision motion control. This paper proposes a finite‐time disturbance observer–based nonlinear robust adaptive control (RAC‐FTDO) framework enhanced by a physically consistent dynamic parameter identification ...
Tianyu Gao +3 more
wiley +1 more source
Energy limiter for hydraulic actuators Patent [PDF]
, 1971 System to control speed of hydraulically movable members by limiting energy applied to actuators with hydraulic servo ...
Steinmetz, C. P.
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Deep Reinforcement Learning‐Based Control for Real‐Time Hybrid Simulation of Civil Structures
International Journal of Robust and Nonlinear Control, EarlyView.ABSTRACT Real‐time Hybrid Simulation (RTHS) is a cyber‐physical technique that studies the dynamic behavior of a system by combining physical and numerical components that are coupled through a boundary condition enforcer. In structural engineering, the numerical components are subjected to environmental loads that become dynamic displacements of the ...
Andrés Felipe Niño +6 more
wiley +1 more source
Analysis of the jet pipe electro-hydraulic servo valve with finite element methods
MATEC Web of Conferences, 2018 The dynamic characteristics analysis about the jet pipe electro-hydraulic servo valve based on experience and mathematical derivation was difficult and not so precise.
Kaiyu Zhao +4 more
doaj +1 more source
Subgravity simulator Patent [PDF]
, 1967 Apparatus for training astronaut crews to perform on simulated lunar surface under conditions of lunar ...
Johnson, H. I., Trader, A. G.
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Actuation Strategies for Underwater Jet‐Propelled Soft Robots
Journal of Field Robotics, EarlyView.ABSTRACT This review article examines jet‐propulsion mechanisms in underwater soft robotic systems, focusing exclusively on physically fabricated and experimentally validated robots. Covering research published from 2013 to 2025, this study classifies and evaluates jet‐propulsion robots based on their actuation mechanisms.
Angel Kitone +3 more
wiley +1 more source
Anti-backlash circuit for hydraulic drive system Patent [PDF]
, 1966 Antibacklash circuit for hydraulic drive ...
Acord, J. D.
core +1 more source