A hydraulic actuator for joint robots with higher torque to weight ratio
Sign Up to like & getrecommendations! Published in 2022 at "Robotica"
DOI: 10.1017/s0263574722001576
Abstract: Abstract Joint actuators with a compact size and high power density are necessary for robots with rotating joints, making the hydraulic actuator (HyA) an ideal actuator candidate. This paper presents a joint HyA with the… read more here.
Keywords: hydraulic actuator; weight ratio; torque weight; actuator ... See more keywords
Investigation on a novel bellows-type piezo-hydraulic actuator
Sign Up to like & getrecommendations! Published in 2021 at "Smart Materials and Structures"
DOI: 10.1088/1361-665x/ac07c6
Abstract: A novel bellows-type piezo-hydraulic actuator was proposed, manufactured and tested in this study. The influence of water on the piezoelectric vibrator was analyzed and the output performance of the actuator was tested. The results show… read more here.
Keywords: type piezo; piezo hydraulic; hydraulic actuator; actuator ... See more keywords
An Adaptive Neural Network Controller for Active Suspension Systems With Hydraulic Actuator
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Transactions on Systems, Man, and Cybernetics: Systems"
DOI: 10.1109/tsmc.2018.2875187
Abstract: In this paper, an adaptive neural network (NN) controller is proposed for a class of nonlinear active suspension systems (ASSs) with hydraulic actuator. To eliminate the problem of “explosion of complexity” inherently in the traditional… read more here.
Keywords: neural network; suspension systems; hydraulic actuator; network controller ... See more keywords
A practical method to account for seal friction in aircraft hydraulic actuator preliminary design
Sign Up to like & getrecommendations! Published in 2017 at "Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering"
DOI: 10.1177/0954410016645371
Abstract: Seals are used in hydraulic actuators or any other hydraulic devices to prevent passing of hydraulic fluid from one chamber to another, or to prevent external leakage and entry of any foreign contaminants. The primary… read more here.
Keywords: hydraulic actuator; friction; friction force; seal friction ... See more keywords
Linear dynamometer testing of hydraulic artificial muscles with variable recruitment
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Intelligent Material Systems and Structures"
DOI: 10.1177/1045389x16682845
Abstract: A novel, meso-scale hydraulic actuator characterization test platform, termed a linear hydraulic actuator characterization device, is demonstrated and characterized in this study. The linear hydraulic actuator characterization device is applied to testing McKibben artificial muscles… read more here.
Keywords: hydraulic actuator; actuator characterization; linear hydraulic; artificial muscles ... See more keywords
Modeling and bifurcation analysis of a hydraulic actuator system with different valve spool geometry
Sign Up to like & getrecommendations! Published in 2022 at "Advances in Mechanical Engineering"
DOI: 10.1177/16878132221118439
Abstract: The valve spools of hydraulic actuator systems are usually designed into various geometries to achieve different flow characters. Because of the coupling nonlinear flow rate-pressure character and dynamic motion of the valve spool, self-excited vibration… read more here.
Keywords: system; hydraulic actuator; valve; geometry ... See more keywords
State estimation for the electro-hydraulic actuator based on particle filter with an improved resampling technique
Sign Up to like & getrecommendations! Published in 2019 at "Proceedings of the Institution of Mechanical Engineers, Part O: Journal of Risk and Reliability"
DOI: 10.1177/1748006x19871753
Abstract: State estimation for the electro-hydraulic actuator of civil aircraft is one of the most valuable but intractable issues. Recently, the state estimation approach based on particle filters has widely attracted attention. We pursue the benefits… read more here.
Keywords: electro hydraulic; state estimation; hydraulic actuator; state ... See more keywords
A Cost-Effective Electro-Hydraulic Actuator Solution with Open Circuit Architecture
Sign Up to like & getrecommendations! Published in 2021 at "International journal of fluid power"
DOI: 10.13052/ijfp1439-9776.2224
Abstract: With the recent electrification trend in the fluid power area, more research has been incentivized to propose cost-effective and energy-efficient solutions for hydraulic systems. Hence, electro-hydraulic actuator (EHA) architectures receive increasing attention. The paper proposes… read more here.
Keywords: open circuit; cost effective; hydraulic actuator; electro hydraulic ... See more keywords