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Research and development of large power valve-control filled hydrodynamic coupling for AFC

Li Guoping,Zhao Mei,Zhao Jiyun. Zhang Desheng

Strategic Study of CAE 2011, Volume 13, Issue 11,   Pages 39-49

Abstract: ;">As one of the most effective soft-start equipments for large power armoured face conveyor (AFC), valve-controlcoupling were proposed.It was pointed that the design of working chamber of coupling and control valve, and manufacturing process are the key technologies of valve-control coupling.And the valve-control coupling powered 1 000 kW was successfully developed.Experiments show that the control valve block has rapid response and the overall performance of valve-control

Keywords： armoured face conveyor(AFC)     valve-control coupling     soft-start     control valve block     CFD    

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Fluid damping clearance in a control valve of injector

ZHANG Jianming, ZHANG Weigang, YANG Bing, WANG Yawei

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 4,   Pages 439-441 doi: 10.1007/s11465-007-0075-x

Abstract: A force model of a control valve of injector is set up, and the changes of the fluid damping clearanceinvestigated on the basis of the results of the computational fluid dynamics (CFD) and the experiments of controlvalve of injector.Results indicate that a damping clearance of 0.02–0.03 mm between the poppet and the valve guide is themost sufficient to dampen any excessive control valve poppet bouncing.

Keywords： control     computational     bouncing     CFD     excessive control    

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Control of homogeneous charge compression ignition combustion in a two-cylinder gasoline direct injectionengine with negative valve overlap

WANG Zhi, WANG Jianxin, SHUAI Shijin, MA Qingjun, TIAN Guohong

Frontiers in Energy 2007, Volume 1, Issue 3,   Pages 311-315 doi: 10.1007/s11708-007-0045-3

Abstract: Homogeneous charge compression ignition (HCCI) has challenges in ignition timing control, combustionrate control, and operating range extension.HCCI combustion was studied in a two-cylinder gasoline direct injection (GDI) engine with negative valveA two-stage gasoline direct injection strategy combined with negative valve overlap was used to control

Keywords： Homogeneous     control     combustion     consumption     extension    

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Coupling evaluation for material removal and thermal control on precision milling machine tools

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 1,   Pages 12-12 doi: 10.1007/s11465-021-0668-9

Abstract: removal (MR) energy as useful energy consumption and ignored the useful energy consumed by thermal controlenergy-efficient, high-precision machining, more attention should be paid to the energy consumption of TC and the couplingHence, the cutting energy efficiency model considering the coupling relationship is established basedThis paper reveals the coupling effect of MR and TC on energy efficiency and machining accuracy.

Keywords： machine tools     cutting energy efficiency     thermal stability     machining accuracy     coupling evaluation    

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Novel piezoelectric pump with “E”-shaped valve found from sub-experiments

Jianhui ZHANG, Jun HUANG, Xiaoqi HU, Qixiao XI,

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 2,   Pages 212-218 doi: 10.1007/s11465-010-0009-x

Abstract: Increasing the driving frequency of a piezoelectric vibrator can resolve the bottleneck of low flow in a valveHowever, a piezoelectric pump of a traditional valve body presents the hysteretic nature of the valveFirst, through the sub-experiment on various parameters of the plate valve of a piezoelectric pump, thethe hysteretic nature of the valve, were discovered.Second, an “E”-shaped valve and piezoelectric pump with an “E”-shaped valve (

Keywords： piezoelectricity     valve     pump     experiment     “     E”     -shaped valve    

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Proportional directional valve based automatic steering system for tractors Project supported

Jin-yi LIU,Jing-quan TAN,En-rong MAO,Zheng-he SONG,Zhong-xiang ZHU

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 5,   Pages 458-464 doi: 10.1631/FITEE.1500172

Abstract: Moreover, their control valves can unload in the neutral position and eventually lead to serious hydrauliccheck valves, a pressure-compensated directional valve, a pressurecompensated flow regulator valve,a load shuttle valve, and a check valve, among other components.controller is based on proportional-integral-derivative (PID) running on a 51-microcontroller-unit master controlTest results show that the system design demonstrates excellent control accuracy, fast response, and

Keywords： Automatic steering system     Hydraulic circuit     Proportional directional valve     Proportional-integral-derivative(PID) control    

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Vibration control efficiency of piezoelectric shunt damping system

Dan WU, Zhichun YANG, Hao SUN,

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 4,   Pages 441-446 doi: 10.1007/s11465-009-0055-4

Abstract: has been known as a simple, low-lost, lightweight, and easy to implement method for passive damping controlEmphasis is laid on the effect of the generalized electromechanical coupling coefficient on the vibrationcontrol efficiency.The results indicate that the bigger the coupling coefficient , the larger the rate of vibration reduction, and hence, the higher the vibration control efficiency.

Keywords： piezoelectric shunt     vibration control efficiency     clamped plate     generalized electromechanical coupling    

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Nonlinear sealing force of a seawater balance valve used in an 11000-meter manned submersible

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 1, doi: 10.1007/s11465-022-0726-y

Abstract: Balance valve is a core component of the 11000-meter manned submersible “struggle,” and its sealing performanceanalytical–numerical–experimental (ANE) model is proposed to obtain the minimum sealing force, ensuring no leakage at the valveFinally, the minimum sealing force equation is applied in a balance valve to be experimented using aThe balance valve designed through the minimum sealing force equation is leak-free in the experiment.Thus, the minimum sealing force equation is suitable for the ultrahigh pressure balance valve and has

Keywords： seawater balance valve     sealing performance     hybrid ANE model     FEM     minimum sealing force equation    

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Artificial bee colony optimization for economic dispatch with valve point effect

Yacine LABBI,Djilani Ben ATTOUS,Belkacem MAHDAD

Frontiers in Energy 2014, Volume 8, Issue 4,   Pages 449-458 doi: 10.1007/s11708-014-0316-8

Abstract: This paper presents the well-known power system ED problem solution considering valve-point effect byhas been applied to various test systems with incremental fuel cost function, taking into account the valve-point

Keywords： artificial bee colony (ABC) algorithm     economic dispatch (ED)     valve-point effect     optimization    

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Development of a novel two-stage proportional valve with a pilot digital flow distribution

Qiang GAO, Yuchuan ZHU, Changwen WU, Yulei JIANG

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 2,   Pages 420-434 doi: 10.1007/s11465-020-0622-2

Abstract: of improving the dynamic performance, reliability, and digitization of the traditional proportional valveof the dual nozzle-flapper valve’s working principle.First, the working principle and mathematical model of the proposed valve are determined.Then, the influences of the control parameters (duty cycle and switching frequency) and structural parameters(fixed orifice’s diameter and main valve’s spring) on the main valve’s motion are analyzed on the basis

Keywords： two-stage proportional valve     digital flow distribution     high-speed on/off valve     position tracking characteristic    

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Review of human–robot coordination control for rehabilitation based on motor function evaluation

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 2, doi: 10.1007/s11465-022-0684-4

Abstract: One of the main elements of such a human–robot coupling system is a control system to ensure human–robotThis review aims to summarise the development of human–robot coordination control and the associatedachievements and provide insight into the research challenges in promoting innovative design in such controlThen, human–robot coordination is discussed in terms of three aspects: modelling, perception and controlBased on the reviewed research, the demand for robotic rehabilitation, modelling for human–robot coupling

Keywords： human–robot coupling     lower limb rehabilitation     exoskeleton robot     motor assessment     dynamical model    

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Right coronary occlusion following transcatheter aortic valve implantation: two case reports

Gang Zhang,Jun Luo,Guo Chen

Frontiers of Medicine 2016, Volume 10, Issue 3,   Pages 351-355 doi: 10.1007/s11684-016-0465-8

Abstract: stenosis, whose right coronary arteries (RCA) were completely occluded during transcatheter aortic valveThe second patient’s blood pressure fluctuated greatly for several minutes after the valve implantation

Keywords： aortic stenosis     transcatheter aortic valve implantation     right coronary occlusion     cardiac group    

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improving left ventricular remodelling and clinical outcome following surgical and trans-catheter aortic valve

Frontiers of Medicine 2021, Volume 15, Issue 3,   Pages 416-437 doi: 10.1007/s11684-021-0852-7

Abstract: Over the last half century, surgical aortic valve replacement (SAVR) has evolved to offer a durable andefficient valve haemodynamically, with low procedural complications that allows favourable remodellinglatter has become more challenging among elderly patients, particularly following trans-catheter aortic valvePrecise understanding of myocardial adaptation to pressure and volume overloading and its responses to valvesurgery requires comprehensive assessments from aortic valve energy loss, valvular-vascular impedance

Keywords： surgical aortic valve replacement     trans-catheter aortic valve implantation     left ventricular hypertrophy    

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Study on Distribution Method of Auto-control Valves in Water Supply Network

Zhang Hongwei,Guo Yiping,Niu Zhiguang,Zhang Li

Strategic Study of CAE 2005, Volume 7, Issue 7,   Pages 71-75

Abstract:

This paper presented a new approach to realize the optimal distribution of auto-control valves inFirstly, the local headloss of the auto-control valve was introduced to the pipe network's hydraulicThen, the valve was supposed to be set on each pipe with different opening degree, following which thetried on an example water supply network, and a general principle for the optimal distribution of auto-controlvalve was obtained.

Keywords： auto-control valve     water supply network     distribution     influencing degree on network    

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Solution to economic dispatch problem with valve-point loading effect by using catfish PSO algorithm

K. MURALI,T. JAYABARATHI

Frontiers in Energy 2014, Volume 8, Issue 3,   Pages 290-296 doi: 10.1007/s11708-014-0305-y

Abstract: The ED problems considered in this paper include valve-point loading effect, power balance constraints

Keywords： economic dispatch (ED)     valve point loading     catfish particle swarm optimization (PSO)     optimization    

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Title Author Date Type Operation

Research and development of large power valve-control filled hydrodynamic coupling for AFC

Li Guoping,Zhao Mei,Zhao Jiyun. Zhang Desheng

Journal Article

Fluid damping clearance in a control valve of injector

ZHANG Jianming, ZHANG Weigang, YANG Bing, WANG Yawei

Journal Article

Control of homogeneous charge compression ignition combustion in a two-cylinder gasoline direct injectionengine with negative valve overlap

WANG Zhi, WANG Jianxin, SHUAI Shijin, MA Qingjun, TIAN Guohong

Journal Article

Coupling evaluation for material removal and thermal control on precision milling machine tools

Journal Article

Novel piezoelectric pump with “E”-shaped valve found from sub-experiments

Jianhui ZHANG, Jun HUANG, Xiaoqi HU, Qixiao XI,

Journal Article

Proportional directional valve based automatic steering system for tractors Project supported

Jin-yi LIU,Jing-quan TAN,En-rong MAO,Zheng-he SONG,Zhong-xiang ZHU

Journal Article

Vibration control efficiency of piezoelectric shunt damping system

Dan WU, Zhichun YANG, Hao SUN,

Journal Article

Nonlinear sealing force of a seawater balance valve used in an 11000-meter manned submersible

Journal Article

Artificial bee colony optimization for economic dispatch with valve point effect

Yacine LABBI,Djilani Ben ATTOUS,Belkacem MAHDAD

Journal Article

Development of a novel two-stage proportional valve with a pilot digital flow distribution

Qiang GAO, Yuchuan ZHU, Changwen WU, Yulei JIANG

Journal Article

Review of human–robot coordination control for rehabilitation based on motor function evaluation

Journal Article

Right coronary occlusion following transcatheter aortic valve implantation: two case reports

Gang Zhang,Jun Luo,Guo Chen

Journal Article

improving left ventricular remodelling and clinical outcome following surgical and trans-catheter aortic valve

Journal Article

Study on Distribution Method of Auto-control Valves in Water Supply Network

Zhang Hongwei,Guo Yiping,Niu Zhiguang,Zhang Li

Journal Article

Solution to economic dispatch problem with valve-point loading effect by using catfish PSO algorithm

K. MURALI,T. JAYABARATHI

Journal Article