Results 21 to 30 of about 7,480 (290)
A Sliding-Mode Set-Point Position Controller for Hydraulic Excavators
IEEE Access, 2021 This paper proposes a sliding-mode set-point position controller for hydraulic excavators. The controller employs a simple switching surface that exponentially drives the actuator position to the desired position with a specified time constant.
Yuki Yamamoto +6 more
doaj +1 more source
Nonsmooth Quasistatic Modeling of Hydraulic Actuators
CoRR, 2021 This article presents a quasistatic model of a hydraulic actuator driven by a four-valve independent metering circuit. The presented model describes the quasistatic balance between the velocity and force and that between the flowrate and the pressure. In such balanced states, the pressure difference across each valve determines the oil flowrate through
Ryo Kikuuwe +5 more
openaire +2 more sources
Fuzzy logic control of active suspension system equipped with a hydraulic actuator
, 2023 In this paper, the Active Suspension System (ASS) of road vehicles was investigated. In addition to the conventional stiffness and damper, the proposed ASS includes a fuzzy controller, a hydraulic actuator, and an LVDT position sensor.
Waleed AL-ASHTARI, Al-Ashtari, Waleed
core +1 more source
Energies, 2022 The pitch controller of a floating offshore wind power system has an important influence on the power generation and movement of the floating body. It drives the turbine blade pitch using a hydraulic actuator, whose inherent characteristics cause a delay
Chan Roh
doaj +1 more source
IEEE Access, 2018 The hydraulic driven legged robots walking on the ground always encounter impact forces due to the contacts between feet and ground. Aiming to reduce the impact forces, a novel passive compliance method is proposed by adding a miniature hydraulic ...
Zisen Hua +5 more
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Design and performance analysis of hydraulic switching valve driven by magnetic shape memory alloy
Advances in Mechanical Engineering, 2021 In this paper, the hydraulic switching valve is designed and its dynamic performance is investigated through proposing a fast response actuator with magnetic shape memory alloy (MSMA) to drive the valve. MSMA actuator with spring return is designed and a
Hu Shi +3 more
doaj +1 more source
Novel Concept for Electro-Hydrostatic Actuators for Motion Control of Hydraulic Manipulators
Energies, 2021 Self-contained hydraulic cylinders have gained popularity in the recent years but have not been implemented for high power articulated hydraulic manipulators.
Konrad Johan Jensen +2 more
doaj +1 more source
The Multi-Parametric Weight Optimization of a Hydraulic Actuator
, 2020 This research was derived from the experimental observation that hydraulic actuators are positioned on machines that are subjected to movements and whose dynamic actions, the accelerations, are very high; it is acceptable to think of an actuator for an ...
Andrea Buffoli +2 more
core +1 more source
Sensors, 2021 In this article, we propose a recent iterative learning algorithm for sensor data fusion to detect pitch actuator failures in wind turbines. The development of this proposed approach is based on iterative learning control and Lyapunov’s theories ...
Leonardo Acho, Gisela Pujol-Vázquez
doaj +1 more source