Results 21 to 30 of about 124,610 (305)
Research on Model-Free Adaptive Control of Electro-Hydraulic Servo System of Continuous Rotary Motor
IEEE Access, 2022 The model-free adaptive controller (MFAC) for continuous rotary electro-hydraulic servo motor was proposed to deal with uncertainties such as friction, leakage and noise.
Xiaojing Wang, Yang Zhang, Chunhui Li
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Sensors, 2022 In this study, we designed a new type of digital hydraulic transformer using four gear–pump/motor units with a displacement ratio of 20:21:22:23 and two control valve groups that consist of four solenoid directional valves. The driving gear shafts of the
Weijian Li +5 more
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Friction in a hydraulic motor piston/cam roller contact lined with PTFE impregnated
, 2009 The aim of this work was to test a new PTFE impregnated cloth material for use as a surface layer on the pistons of a hydraulic motor at the interface with the cam roller.
Lewis, R.
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Applied Sciences, 2020 Heavy forklifts that are widely used in ports and stations have large gravitational potential energy at the lowering of the boom. As concerning the large rated power level, the engine is still the main power source for the heavy forklifts.
Shengjie Fu +5 more
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Investigation Method and Mathematical Model of Pressure Losses in Hydraulic Rotary Motor
Polish Maritime Research, 2018 This paper presents a way of determining the coefficient k8 of the pressure losses ΔpMp (flow drag) in internal ducts of SWSB-63 hydraulic motor. The coefficient is determined at a flow rate equal to the theoretical capacity QPt of the pump feeding the ...
Maczyszyn Agnieszka
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Polish Maritime Research, 2017 A large number of hydraulic devices and systems are started in low ambient temperatures. A good example of such a device is the hoisting winch on the ship.
Jasiński Ryszard
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Energy-efficient control of pump units based on neural-network parameter observer [PDF]
, 2020 An observer based on an artificial neural network was designed. The observer determines the pumping unit performance depending on the operating point. Determination is based on the measured technological coordinates of the system and the pressure of the ...
Burian, S. O. +4 more
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Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Background Accessing brain magnetic resonance imaging (MRI) can be challenging, especially for underserved patients, which may lead to disparities in neurological diagnosis. Method This mixed‐methods study enrolled adults with one of four neurological disorders: mild cognitive impairment or dementia of the Alzheimer type, multiple sclerosis ...
Maya L. Mastick +19 more
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Modeling of limitations on the use of hydraulic motor-wheels in transmissions of mobile machines
Avtomobilʹnyj Transport (Harʹkov)Problem. The development of mobile machines with increased movement speeds requires constructive solutions for the creation of appropriate transmissions, particularly the analysis of the possibility of creating hydraulic stepless transmissions using ...
Avrunin Grygoriy +5 more
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Comparing hydraulic and electromechanical drives by electric motor’s power [PDF]
MATEC Web of Conferences, 2019 The authors have made the analysis of energy consumption by positive-displacement hydraulic drive and asynchronous motor with phase rotor in the course of crane mechanisms operation at all stages of motion: acceleration, movement at nominal or ...
Grigorov Otto +5 more
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