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Elliptical lobe shape gerotor pump design to minimize wear

Mohammad Reza KARAMOOZ RAVARI

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 4,   Pages 429-434 doi: 10.1007/s11465-011-0247-6

Abstract: Because the gerotor pumps cannot be adjusted for wear so it is important to reduce the wear as much aselliptical lobe shape rotors profile and curvature of them have been derived and then Specific flow and wearrate proportional factor (WRPF) have been formulated.To reach the minimum wear in rotors teeth, the ellipse shape factor is changed for each value of numberof outer rotor teeth in a feasible range and wear rate proportional factor has been resulted.

Keywords： gerotor pump     elliptical lobe shape pump     wear rate proportional factor (WRPF)     specific flow    

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Tool wear mechanisms in the machining of Nickel based super-alloys: A review

Waseem AKHTAR,Jianfei SUN,Pengfei SUN,Wuyi CHEN,Zawar SALEEM

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 2,   Pages 106-119 doi: 10.1007/s11465-014-0301-2

Abstract: Conversely, these alloys are very difficult to machine and cause rapid wear of the cutting tool, frequentTypical tool wear mechanisms found by different researchers are analyzed in order to find out the mostprevalent wear mechanism affecting the tool life.The review of existing works has revealed interesting findings about the tool wear mechanisms in theAdhesion wear is found to be the main phenomenon leading to the cutting tool wear in this study.

Keywords： tool wear     nickel based super-alloy     wear mechanism    

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Ultrasonic assisted EDM: Effect of the workpiece vibration in the machining characteristics of FW4 Welded Metal

Mohammadreza SHABGARD, Hamed KAKOLVAND, Mirsadegh SEYEDZAVVAR, Ramin Mohammadpour SHOTORBANI

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 4,   Pages 419-428 doi: 10.1007/s11465-011-0246-7

Abstract: The studied process characteristics included the material removal rate (MRR), tool wear ratio (TWR),The experimental results show that in short pulse on-times, material removal rate in the US-EDM process

Keywords： electrical discharge machining (EDM)     material removal rate (MRR)     tool wear ratio (TWR)     surface roughness    

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Integrated slipper retainer mechanism to eliminate slipper wear in high-speed axial piston pumps

Frontiers of Mechanical Engineering doi: 10.1007/s11465-021-0657-z

Abstract: in axial piston pumps are exposed to continuous sliding on the swash plate, suffering from serious wearwhich can avoid direct contact between the slippers and the swash plate and thereby eliminate slipper wear

Keywords： axial piston pump     high speed     slipper wear     slipper design     retainer     lubrication model    

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Development of a new wear resistant coating by arc spraying of a steel-based cored wire

Lidong ZHAO, Pia KUTSCHMANN, Binyou FU, Dingyong HE

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 1,   Pages 1-4 doi: 10.1007/s11465-009-0012-2

Abstract: sheath material and NiB and WC-12Co as filler materials was designed and deposited to produce a new wearThe wear performance of the coating was evaluated.The abrasive wear test showed that the new Fe-based coating was very wear resistant.

Keywords： amorphous phase     arc spraying     microstructure     wear     cored wire    

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Effect of wood dust type on mechanical properties, wear behavior, biodegradability, and resistance to

Sawan KUMAR, Ajitanshu VEDRTNAM, S. J. PAWAR

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 6,   Pages 1446-1462 doi: 10.1007/s11709-019-0568-9

Abstract: different proportions of Mango/Sheesham/Mahogany/Babool dust to polypropylene for improving mechanical, wearThe mechanical, wear, and morphological characterizations of fabricated WPCs were carried out using standardwere having superior mechanical properties whereas the WPCs consisting of Mango and Mahogany were more wearIt was found that increasing wood powder proportion results in higher Young’s modulus, lesser wear rate

Keywords： wood-plastic composites     mechanical testing     wear     biodegradability     injection molding     weathering    

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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: Pilot two-stage proportional valves are widely used in high-power hydraulic systems.the purpose of improving the dynamic performance, reliability, and digitization of the traditional proportionalvalve, a novel two-stage proportional valve with a pilot digital flow distribution is proposed fromThe values can be further improved by increasing the flow rate of the pilot HSV.

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

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Mesh relationship modeling and dynamic characteristic analysis of external spur gears with gear wear

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 1,   Pages 9-9 doi: 10.1007/s11465-021-0665-z

Abstract: Gear wear is one of the most common gear failures, which changes the mesh relationship of normal gearA geometric model for a new mesh relationship with gear wear is proposed, which is utilized to evaluatethe influence of gear wear on mesh stiffness and unloaded static transmission error (USTE).Based on the mesh stiffness and USTE considering gear wear, a gear dynamic model is established, andthe vibration characteristics of gear wear are numerically studied.

Keywords： gear wear     mesh relationship     mesh stiffness     transmission error     vibration characteristics    

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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: The system design is composed of a 5-way-3- position proportional directional valve, two pilot-controlledThe steering controller is based on proportional-integral-derivative (PID) running on a 51-microcontroller-unit

Keywords： Automatic steering system     Hydraulic circuit     Proportional directional valve     Proportional-integral-derivative    

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Correction to: Effect of wood dust type on mechanical properties, wear behavior, biodegradability, and

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 4,   Pages 1071-1071 doi: 10.1007/s11709-021-0736-6

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Study on tribological and electrochemistry properties of metal materials in H2O2 solutions

Chengqing YUAN, Li YU, Jian LI, Xinping YAN

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 1,   Pages 93-98 doi: 10.1007/s11465-012-0313-8

Abstract: It is crucial to study the wear behavior and failure modes of the metal materials under the strong oxidizingThis study aims to investigate the wear of rubbing pairs of 2Cr13 stainless steel against 1045 metalin H2O2 solutions, which has a great effect on wear, the decomposition andThe comparison analysis of the friction coefficients, wear mass loss, worn surface topographies and current

Keywords： hydrogen peroxide     wear     corrosion     wear mechanism    

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The coupling of sand with ZVI/oxidants achieved proportional and highly efficient removal of arsenic

Sana Ullah, Xuejun Guo, Xiaoyan Luo, Xiangyuan Zhang, Yameng Li, Ziyu Liang

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 6, doi: 10.1007/s11783-020-1273-6

Abstract: . • Sand doping facilitated proportional As trapping along the ZVI/oxidants column. • ZVI/sand/oxidantsHowever, the uniform activation of ZVI throughout the column and the proportional removal of target contaminants

Keywords： Arsenic     ZVI     Sand     Oxidants     Fixed-bed Column     Removal    

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Modeling, simulation, and prediction of global energy indices: a differential approach

Stephen Ndubuisi NNAMCHI, Onyinyechi Adanma NNAMCHI, Janice Desire BUSINGYE, Maxwell Azubuike IJOMAH, Philip Ikechi OBASI

Frontiers in Energy 2022, Volume 16, Issue 2,   Pages 375-392 doi: 10.1007/s11708-021-0723-6

Abstract: state-of-the-art of the research includes normalization of energy indices, generation of differential rateterms, and regression of rate terms against energy indices to generate coefficients and unexplainedMoreover, the sensitivity of the differential rate terms was instrumental in discovering the overwhelming

Keywords： energy indices     differential model     normalization     simulation     inflation/deflation     predictive factor andprediction rate    

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Application of grey-taguchi method for optimization of dry sliding wear properties of aluminum MMCs

Rajesh SIRIYALA, Gopala Krishna ALLURU, Rama Murthy Raju PENMETSA, Muthukannan DURAISELVAM

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 3,   Pages 279-287 doi: 10.1007/s11465-012-0329-0

Abstract:

Through a pin-on-disc type wear setup, the dry sliding wear behavior of SiC-reinforced aluminum compositesDry sliding wear tests were carried on SiC-reinforced metal matrix composites (MMCs) and its matrix alloyThe results indicated that the sliding velocity was the most effective factor among the control parameterson dry sliding wear, followed by the reinforcement percentage, sliding distance, and contact stress.Finally, the wear surface morphology and wear mechanism of the composites were investigated through scanning

Keywords： aluminum     ANOVA (analysis of variance)     grey relational analysis     metal matrix composites     SiC particulates     Taguchi    

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WC coatings as candidate to hard chrome plating: characterization of fatigue and friction and wear

Zhou Kesong,Deng Chunming,Liu Min

Strategic Study of Chinese Academy of Engineering 2009, Volume 11, Issue 10,   Pages 48-54

Abstract:

Fatigue and friction and wear performances against Al—Ni—Friction and wear behaviors of coatings against Al—Ni—Bronze alloy lubricated by 10# aircraftThe wear mechanism for WC coating and chrome plating against Al—Ni—Bronze alloy was respectivelygoverned by abrasive wear and adhesive wear.

Keywords： 300 M steel     high velocity air fuel     WC coating     chrome plating     fatigue     friction and wear    

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Title Author Date Type Operation

Elliptical lobe shape gerotor pump design to minimize wear

Mohammad Reza KARAMOOZ RAVARI

Journal Article

Tool wear mechanisms in the machining of Nickel based super-alloys: A review

Waseem AKHTAR,Jianfei SUN,Pengfei SUN,Wuyi CHEN,Zawar SALEEM

Journal Article

Ultrasonic assisted EDM: Effect of the workpiece vibration in the machining characteristics of FW4 Welded Metal

Mohammadreza SHABGARD, Hamed KAKOLVAND, Mirsadegh SEYEDZAVVAR, Ramin Mohammadpour SHOTORBANI

Journal Article

Integrated slipper retainer mechanism to eliminate slipper wear in high-speed axial piston pumps

Journal Article

Development of a new wear resistant coating by arc spraying of a steel-based cored wire

Lidong ZHAO, Pia KUTSCHMANN, Binyou FU, Dingyong HE

Journal Article

Effect of wood dust type on mechanical properties, wear behavior, biodegradability, and resistance to

Sawan KUMAR, Ajitanshu VEDRTNAM, S. J. PAWAR

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

Mesh relationship modeling and dynamic characteristic analysis of external spur gears with gear wear

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

Correction to: Effect of wood dust type on mechanical properties, wear behavior, biodegradability, and

Journal Article

Study on tribological and electrochemistry properties of metal materials in H2O2 solutions

Chengqing YUAN, Li YU, Jian LI, Xinping YAN

Journal Article

The coupling of sand with ZVI/oxidants achieved proportional and highly efficient removal of arsenic

Sana Ullah, Xuejun Guo, Xiaoyan Luo, Xiangyuan Zhang, Yameng Li, Ziyu Liang

Journal Article

Modeling, simulation, and prediction of global energy indices: a differential approach

Stephen Ndubuisi NNAMCHI, Onyinyechi Adanma NNAMCHI, Janice Desire BUSINGYE, Maxwell Azubuike IJOMAH, Philip Ikechi OBASI

Journal Article

Application of grey-taguchi method for optimization of dry sliding wear properties of aluminum MMCs

Rajesh SIRIYALA, Gopala Krishna ALLURU, Rama Murthy Raju PENMETSA, Muthukannan DURAISELVAM

Journal Article

WC coatings as candidate to hard chrome plating: characterization of fatigue and friction and wear

Zhou Kesong,Deng Chunming,Liu Min

Journal Article