Results 41 to 50 of about 10,781 (143)
Sensors, 2017 This paper details the new design and dynamic simulation of an electro-hydraulic camless engine valve actuator (EH-CEVA) and experimental verification with lift position sensors.
Kanghyun Nam +3 more
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Fault-tolerant control of a hydraulic servo actuator via adaptive dynamic programming
Mathematical Modelling and Control, 2023 The fault-tolerant control problem of a hydraulic servo actuator in the presence of actuator faults is studied utilizing adaptive dynamic programming.
Vladimir Stojanovic
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Adaptive sliding-mode delay compensation for real-time hybrid simulations with multiple actuators
Frontiers in Built EnvironmentReal-time hybrid simulation (RTHS) is a widely applied test method in structural engineering, which is developed from pseudo-dynamic test. Much of the past work has been centered on one-dimensional RTHS using a single hydraulic actuator.
Yuekun Shangguan +5 more
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Wind Energy, 2020 This paper deals with numerical modeling of the hydraulic blade pitch actuator and its effect on the dynamic responses of a floating spar‐type wind turbine under valve fault conditions.
Seongpil Cho +4 more
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Kinematics and Dynamic Modeling of a Planar Hydraulic Elastomer Actuator [PDF]
arXiv, 2018 This paper presents modeling of a compliant 2D manipulator, a so called soft hydraulic/fluidic elastomer actuator. Our focus is on fiber-Reinforced Fluidic Elastomer Actuators (RFEA) driven by a constant pressure hydraulic supply and modulated on/off valves.
arxiv
Applied Sciences, 2020 The hydraulic servo actuator with passive compliance (HPCA) is designed for hydraulically-driven quadruped robots. It is characterized by an accumulator that connects to the piston chamber of the hydraulic cylinder to buffer impact forces between a robot&
Zisen Hua +5 more
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Online Fault Identification of Digital Hydraulic Valves Using a Combined Model-Based and Data-Driven Approach [PDF]
arXiv, 2018 Robustness and fault-tolerance are desirable properties for hydraulic working machines and field robots. In applications where service personnel do not have easy access to the machine, it is important that the machine can continue its operation despite single machinery faults.
arxiv
Task Space Control of Hydraulic Construction Machines using Reinforcement Learning [PDF]
arXiv, 2023 Teleoperation is vital in the construction industry, allowing safe machine manipulation from a distance. However, controlling machines at a joint level requires extensive training due to their complex degrees of freedom. Task space control offers intuitive maneuvering, but precise control often requires dynamic models, posing challenges for hydraulic ...
arxiv
Energy-Saving Trajectory Tracking Control of a Multi-Pump Multi-Actuator Hydraulic System
IEEE Access, 2020 With the increasing application of automated hydraulic excavators, the demand for high-level control performance and significant energy saving schemes becomes stronger.
Ruikai Bao, Qingfeng Wang, Tao Wang
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IEEE AccessThe enormous throttling losses are the crucial reason for the low energy efficiency of non-road mobile machinery. To achieve energy saving, a parallel electro-hydraulic hybrid drivetrain that combines an electric-hydraulic energy recovery system with a ...
Tao Liang +4 more
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