Improving the Performance of Pump-Controlled Circuits for Single-Rod Actuators [PDF]
Actuators, 2019 Pump-controlled hydraulic circuits offer an energy-efficient solution for many applications. They combine the high power to weight ratio of hydraulic technology with the ease of control of electric technology.
Ahmed Imam +3 more
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Design, Implementation and Evaluation of a Pump-Controlled Circuit for Single Rod Actuators [PDF]
Actuators, 2017 Pump-controlled hydraulic circuits are more efficient than valve-controlled circuits, as they eliminate the energy losses due to flow throttling in valves and require less cooling effort.
Ahmed Imam +3 more
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High-Gain Observer-Based Sliding Mode Force Control for the Single-Rod Electrohydraulic Servo Actuator [PDF]
IEEE Access, 2019 A high-gain observer based sliding mode force control system for the single-rod servo actuator is presented in this paper. In order to track the desired force, full states for feedback are needed.
Guosheng Xu, Nianli Lu, Guangming Lv
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Robust Nonlinear Position Control with Extended State Observer for Single-Rod Electro-Hydrostatic Actuator [PDF]
Mathematics, 2021 In the existing literature, studies on position controller design using only position feedback, considering the disturbances for single-rod electro-hydrostatic actuators (EHAs), have not been reported.
Young Seop Son, Wonhee Kim
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A Critical Analysis of Flow-Compensated Hydrostatic Single Rod Actuators: Simulation Study [PDF]
Actuators, 2020 It is well established that the differential cylinder area in pump-controlled single-rod actuators creates the need of correctly switching the connections between the main circuit lines and a charge circuit, in order to provide means for equalising the ...
Gustavo Koury Costa, Nariman Sepehri
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A Comparative Study of Two Common Pump-Controlled Hydraulic Circuits for Single-Rod Actuators
Actuators, 2023 Pump-controlled hydraulic circuits are proven to be more efficient than conventional valve-controlled circuits. Pump-controlled hydraulic circuits for double rod cylinders are well developed and are in use in many practical applications.
Ahmed Imam +2 more
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Collaborative Multi-Sensor Fusion for Intelligent Flow Regulation and State Monitoring in Digital Plunger Pumps [PDF]
SensorsTo address the technical challenge where traditional high-pressure, large-flow emulsion pump stations cannot adapt to the drastic flow rate changes in hydraulic supports due to the fixed displacement of their quantitative pumps—leading to frequent system
Fang Yang +5 more
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Explosive Output to Enhance Jumping Ability: A Variable Reduction Ratio Design Paradigm for Humanoid Robot Knee Joint [PDF]
BiomimeticsEnhancing the explosive power output of the knee joints is critical for improving the agility and obstacle crossing of humanoid robots. However, a mismatch between the knee-to-CoM transmission ratio and jumping demands, together with power-loss–induced ...
Xiaoshuai Ma +5 more
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A throttle-less single-rod hydraulic cylinder positioning system: Design and experimental evaluation
Advances in Mechanical Engineering, 2015 Modern industrial tote dumpers and lifters are equipped with long-stroke single-rod hydraulic cylinders. For years, valve-controlled cylinders have been used in tote dumpers.
Ehsan Jalayeri +3 more
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Actuators, 2018 Valve-controlled hydraulic actuation systems are favored in many applications due to their fast response, high power-to-weight ratio, and stability under variable working conditions. Efficiency, however, is the main disadvantage of these systems.
Ahmed Imam +3 more
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