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Digital switched hydraulics

Min PAN, Andrew PLUMMER

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 2,   Pages 225-231 doi: 10.1007/s11465-018-0509-7

Abstract:

This paper reviews recent developments in digital switched hydraulics particularly the switched inertancehydraulic systems (SIHSs).

Keywords： digital hydraulics     switched inertance hydraulic systems     energy efficiency     high-speed switching valve    

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Motion control of multi-actuator hydraulic systems for mobile machineries: Recent advancements and future

Bing XU, Min CHENG

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 2,   Pages 151-166 doi: 10.1007/s11465-018-0470-5

Abstract: advancements and upcoming trends in motion control technologies employed in designing multi-actuator hydraulicsystems for mobile machineries.Hydraulic systems have been extensively used in mobile machineries due to their superior power densityHowever, motion control technologies of multi-actuator hydraulic systems have faced increasing challengesRecent advancements in energy-saving hydraulic technologies, such as individual metering, displacement

Keywords： motion control     electrohydraulic control     energy efficiency     mobile machineries    

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Model-based nonlinear control of hydraulic servo systems: Challenges, developments and perspectives

Jianyong YAO

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 2,   Pages 179-210 doi: 10.1007/s11465-018-0464-3

Abstract:

Hydraulic servo system plays a significant role in industries, and usually acts as a core point inlinear theory-based control methods have been well established, advanced controller design methods for hydraulicnonlinear control more attractive, due to benefit from prior knowledge of the servo valve controlled hydraulicservo systems are presented: Modelling uncertainty in hydraulic system is a major challenge, which includestopics (measurement noise, constraints, inner valve dynamics, input nonlinearity, etc.) in nonlinear hydraulic

Keywords： hydraulic servo system     adaptive control     robust control     nonlinear friction     disturbance compensation     repetitive    

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Characters of Future Aircraft Hydraulic System

Wang Zhanlin,Chen Bin

Strategic Study of CAE 1999, Volume 1, Issue 3,   Pages 5-10

Abstract: High density of driving power, fast response, high rigidity and high-precision are the advantages of hydraulicAll of flight actuator and transmitting systems of today´s aircrafts are nearly driven by hydraulicsystems.In this paper, main developmental trend of airborne hydraulic system, especially for military aircraft, is summarized, and some research works on aircraft hydraulic systems in domestic and overseas are introduced

Keywords： airborne hydraulic systems     high-pressure     variable pressure     redundancy     power-by-wire    

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Electromagnetic modeling and control of switched reluctance motor using finite elements

Ali ARIF,Abderrazak GUETTAF,Ahmed Chaouki MEGHERBI,Said BENRAMACHE,Fateh BENC HABANE

Frontiers in Energy 2014, Volume 8, Issue 3,   Pages 355-363 doi: 10.1007/s11708-014-0319-5

Abstract: This paper considered the implementation of a current control method for switched reluctance motors (

Keywords： switched reluctance motor (SRM)     hysteresis     control     finite element analysis    

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Decision Support System for emergency scheduling of raw water supply systems with multiple sources

Qi WANG, Shuming LIU, Wenjun LIU, Zoran KAPELAN, Dragan SAVIC

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 5,   Pages 777-786 doi: 10.1007/s11783-013-0537-9

Abstract: A hydraulic model-based emergency scheduling Decision Support System (DSS) is designed to eliminate theimpact of sudden contamination incidents occurring upstream in raw water supply systems with multiple

Keywords： decision support system     raw water supply system     contamination incident     emergency scheduling     hydraulic    

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Life cycle cost savings analysis on traditional drainage systems from low impact development strategies

Pengfei ZHANG, Samuel T. ARIARATNAM

Frontiers of Engineering Management 2021, Volume 8, Issue 1,   Pages 88-97 doi: 10.1007/s42524-020-0063-y

Abstract: Conventional drainage systems were built to mimic natural drainage patterns to prevent the occurrenceThese drainage systems consist of two major components: 1) a stormwater conduit system, and 2) a runoffRunoff storage systems contain retention basins and drywells that are used to store and percolate runoff, whereas conduit systems are combination of catch basins and conduit pipes used to collect and transportThe construction of these drainage systems is costly and may cause significant environmental disturbance

Keywords： low impact development     traditional drainage system     hydraulic benefits     life-cycle cost    

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Performance prediction of switched reluctance generator with time average and small signal models

Jyoti KOUJALAGI, B. UMAMAHESWARI, R. ARUMUGAM

Frontiers in Energy 2013, Volume 7, Issue 1,   Pages 56-68 doi: 10.1007/s11708-012-0216-8

Abstract: This paper presents the complete mathematical model and predicts the performance of switched reluctanceThe simulation is performed to choose the control parameters and study the performance of switched reluctance

Keywords： generator     reluctance     switching model     small signal model     time average model    

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Smooth tracking control for conversionmode of a tilt-rotor aircraft with switching modeling Research Article

Kebi LUO, Shuang SHI, Cong PENG

Frontiers of Information Technology & Electronic Engineering 2023, Volume 24, Issue 11,   Pages 1591-1600 doi: 10.1631/FITEE.2300266

Abstract: Based on the nonlinear model of the conversion mode, a switched linear model is developed by using the

Keywords： Tilt-rotor aircraft     State-tracking control     Switched linear systems     Time-scheduled multiple Lyapunov    

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Robust switched fractional controller for performance improvement of single phase active power filter

H. AFGHOUL,F. KRIM,D. CHIKOUCHE,A. BEDDAR

Frontiers in Energy 2016, Volume 10, Issue 2,   Pages 203-212 doi: 10.1007/s11708-015-0381-7

Abstract: The proposed switched fractional controller (SFC) consists of a conventional PI controller, a fractional

Keywords： conventional PI controller     fractional calculus (FC)     total harmonic distortion (THD)     Oustaloup continuous approximation (OCA)     single phase active power filter (SPAPF)    

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Multiobjective trajectory optimization of intelligent electro-hydraulic shovel

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 4, doi: 10.1007/s11465-022-0706-2

Abstract: consumption, execution time, and excavation volume as the objective functions is presented for the electro-hydraulic

Keywords： trajectory planning     electro-hydraulic shovel     cubic polynomial S-curve     multiobjective optimization    

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Effects of slip length and hydraulic diameter on hydraulic entrance length of microchannels with superhydrophobic

Wenchi GONG, Jun SHEN, Wei DAI, Zeng DENG, Xueqiang DONG, Maoqiong GONG

Frontiers in Energy 2020, Volume 14, Issue 1,   Pages 127-138 doi: 10.1007/s11708-020-0661-8

Abstract: This paper investigated effects of slip length and hydraulic diameter on the hydraulic entrance lengthIt is found that superhydrophobic microchannels have a longer hydraulic entrance length than that ofThe dimensionless hydraulic entrance length slightly increases with the increasing slip length at approximatelyRe<10, and does not vary with the hydraulic diameter.

Keywords： laminar flow     hydraulic entrance length     super hydrophobic surface     slip length     hydraulic diameter    

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Modelling the thresholds of nitrogen/phosphorus concentration and hydraulic retention time for bloom

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 10, doi: 10.1007/s11783-022-1564-1

Abstract:

● A new model for bloom control in open land scape water was constructed.

Keywords： Reclaimed water landscape     Algal bloom     Nitrogen and phosphorus     Hydraulic retention time     Threshold    

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Hydromechanical model for hydraulic fractures using XFEM

Bo HE

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 1,   Pages 240-249 doi: 10.1007/s11709-018-0490-6

Abstract: In this study, a hydromechanical model for fluid flow in fractured porous media is presented. We assume viscous fluids and the coupling equations are derived from the mass and momentum balance equations for saturated porous media. The fluid flow through discrete cracks will be modelled by the extended finite element method and an implicit time integration scheme. We also present a consistent linearization of the underlying non-linear discrete equations. They are solved by the Newton-Raphson iteration procedure in combination with a line search. Furthermore, the model is extended to includes crack propagation. Finally, examples are presented to demonstrate the versatility and efficiency of this two-scale hydromechanical model. The results suggest that the presence of the fracture in a deforming, porous media has great impact on the fluid flow and deformation patterns.

Keywords： multi-phase medium     porous     fracture     multi-scale method    

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Review of fluid and control technology of hydraulic wind turbines

Maolin CAI, Yixuan WANG, Zongxia JIAO, Yan SHI

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 3,   Pages 312-320 doi: 10.1007/s11465-017-0433-2

Abstract:

This study examines the development of the fluid and control technology of hydraulic wind turbinesThe current state of hydraulic wind turbines as a new technology is described, and its basic fluid modelFinally, the advantages of hydraulic wind turbines are enumerated.Hydraulic wind turbines are expected to become the main development direction of wind turbines.

Keywords： wind turbine     hydraulic system     fluid model     control technology    

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Title Author Date Type Operation

Digital switched hydraulics

Min PAN, Andrew PLUMMER

Journal Article

Motion control of multi-actuator hydraulic systems for mobile machineries: Recent advancements and future

Bing XU, Min CHENG

Journal Article

Model-based nonlinear control of hydraulic servo systems: Challenges, developments and perspectives

Jianyong YAO

Journal Article

Characters of Future Aircraft Hydraulic System

Wang Zhanlin,Chen Bin

Journal Article

Electromagnetic modeling and control of switched reluctance motor using finite elements

Ali ARIF,Abderrazak GUETTAF,Ahmed Chaouki MEGHERBI,Said BENRAMACHE,Fateh BENC HABANE

Journal Article

Decision Support System for emergency scheduling of raw water supply systems with multiple sources

Qi WANG, Shuming LIU, Wenjun LIU, Zoran KAPELAN, Dragan SAVIC

Journal Article

Life cycle cost savings analysis on traditional drainage systems from low impact development strategies

Pengfei ZHANG, Samuel T. ARIARATNAM

Journal Article

Performance prediction of switched reluctance generator with time average and small signal models

Jyoti KOUJALAGI, B. UMAMAHESWARI, R. ARUMUGAM

Journal Article

Smooth tracking control for conversionmode of a tilt-rotor aircraft with switching modeling

Kebi LUO, Shuang SHI, Cong PENG

Journal Article

Robust switched fractional controller for performance improvement of single phase active power filter

H. AFGHOUL,F. KRIM,D. CHIKOUCHE,A. BEDDAR

Journal Article

Multiobjective trajectory optimization of intelligent electro-hydraulic shovel

Journal Article

Effects of slip length and hydraulic diameter on hydraulic entrance length of microchannels with superhydrophobic

Wenchi GONG, Jun SHEN, Wei DAI, Zeng DENG, Xueqiang DONG, Maoqiong GONG

Journal Article

Modelling the thresholds of nitrogen/phosphorus concentration and hydraulic retention time for bloom

Journal Article

Hydromechanical model for hydraulic fractures using XFEM

Bo HE

Journal Article

Review of fluid and control technology of hydraulic wind turbines

Maolin CAI, Yixuan WANG, Zongxia JIAO, Yan SHI

Journal Article