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Fast scaling approach based on cavitation conditions to estimate the speed limitation for axial pistonpump design

Qun CHAO, Jianfeng TAO, Junbo LEI, Xiaoliang WEI, Chengliang LIU, Yuanhang WANG, Linghui MENG

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 1,   Pages 176-185 doi: 10.1007/s11465-020-0616-0

Abstract: The power density of axial piston pumps can benefit greatly from increased rotational speeds.However, the maximum rotational speed of axial piston machines is limited by the cavitation phenomenonpiston pumps.The cavitation model is experimentally verified using a high-speed axial piston pump, and the scalingThis constant can represent the comprehensive capacity of axial piston pumps free from cavitation.

Keywords： axial piston pump     cavitation     speed limitation     scaling law    

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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: The power density of axial piston pumps can greatly benefit from increasing the speed level.However, traditional slippers in axial piston pumps are exposed to continuous sliding on the swash plateTherefore, this paper presents a new integrated slipper retainer mechanism for high-speed axial pistonmodel was developed for this specific slipper retainer mechanism, and experiments were carried out on a pump

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

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Development of an analytical model to estimate the churning losses in high-speed axial piston pumps

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 2, doi: 10.1007/s11465-021-0671-1

Abstract: The axial piston pumps in aerospace applications are often characterized by high-speed rotation to achieveThe churning losses deserve much attention at the design stage of high-speed axial piston pumps, butpresented analytical model provides practical guidelines for reducing the churning losses in high-speed axialpiston pumps or motors.

Keywords： axial piston pump     rotating parts     high rotational speed     churning losses     drag torque    

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Fault diagnosis of axial piston pumps with multi-sensor data and convolutional neural network

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 3, doi: 10.1007/s11465-022-0692-4

Abstract: Axial piston pumps have wide applications in hydraulic systems for power transmission.piston pumps because of their sensitivity to pump health conditions.only used vibration or pressure signal, and literatures related to multi-sensor data fusion for the pumpThis paper presents an end-to-end multi-sensor data fusion method for the fault diagnosis of axial pistonExperiments were performed on an axial piston pump to confirm the effectiveness of the proposed method

Keywords： axial piston pump     fault diagnosis     convolutional neural network     multi-sensor data fusion    

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Multi-objective optimization of surface texture for the slipperswash plate interface in EHA pumps

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 4, doi: 10.1007/s11465-022-0704-4

Abstract: can improve the tribological properties and the efficiency of the electro-hydrostatic actuator (EHA) pumpthe slipper/swash plate interface for improving the mechanical and volumetric efficiency of the EHA pumpIn this way, the arbitrary-shaped surface texture with the best comprehensive effect in the EHA pumpis achieved and its positive effects in the EHA pump prototype are verified.

Keywords： electro-hydrostatic actuator     axial piston pump     slipper/swash plate interface     multi-objective optimization    

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Characteristics of force acting on adjustable axial flow pump blade

WEI Peiru, CHEN Hongxun, LU Wei

Frontiers in Energy 2008, Volume 2, Issue 4,   Pages 508-513 doi: 10.1007/s11708-008-0054-x

Abstract: The internal three-dimensional turbulent flow of adjustable axial-flow pump arrangement was simulated

Keywords： three-dimensional     adjustable axial-flow     calculated     FEM     centrifugal    

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Design approach for single piston hydraulic free piston diesel engines

Wei WU, Shihua YUAN, Jibin HU, Chongbo JING,

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 4,   Pages 371-378 doi: 10.1007/s11465-009-0069-y

Abstract: The operating characteristics of a single piston hydraulic free piston diesel engine differ significantly

Keywords： free piston engine (FPE)     diesel engine     hydraulic equipment     simulation     experiment    

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An experimental study of a single-piston free piston linear generator

Jin XIAO, Yingdong CHENG, Jinlong WANG, Chengwei ZHU, Zhen HUANG

Frontiers in Energy 2022, Volume 16, Issue 6,   Pages 916-930 doi: 10.1007/s11708-022-0838-4

Abstract: Free piston linear generator (FPLG) is a promising range extender for the electrical vehicle with unparallelHowever, due to the lack of the mechanic crankshaft, the related piston motion control is a challengeAimed at resolving the problems as misfire, a single-piston FPLG prototype has been designed and manufactured

Keywords： free piston linear generator (FPLG)     charged scavenging     engine control     misfire     stable operation    

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Design and modeling of a free-piston engine generator

Frontiers in Energy 2023, Volume 17, Issue 6,   Pages 811-821 doi: 10.1007/s11708-022-0848-2

Abstract: Free-piston engine generators (FPEGs) can be applied as decarbonized range extenders for electric vehiclesparameter-decoupling approach first divides the FPEG into three parts: a two-stroke engine, an integrated scavenging pumpEmpirical equations were adopted to design the engine and scavenging pump, while special considerations

Keywords： free-piston engine generator     linear permanent magnet synchronous machine     system design     numerical model    

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Influence of steel corrosion on axial and eccentric compression behavior of coral aggregate concrete

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 6,   Pages 1415-1425 doi: 10.1007/s11709-021-0786-9

Abstract: To study the behavior of coral aggregate concrete (CAC) column under axial and eccentric compression,corrosion and interfacial bond deterioration, the calculation models of Nu under axial

Keywords： coral aggregate concrete column     axial compression     eccentric compression     steel corrosion     calculation    

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Numerical study of axial-loaded circular concrete-filled aluminum tubular slender columns

Frontiers of Structural and Civil Engineering 2024, Volume 18, Issue 2,   Pages 272-293 doi: 10.1007/s11709-024-1000-7

Abstract: comprehensive numerical study was conducted on a modeling method for the first time to simulate the axialIt was confirmed that the proposed numerical technique was reliable and accurate for simulating the axialparametric study was conducted to investigate the effects of geometric and material properties on the axialThe simulated axial strengths were compared with those predicted using AS 5100 and AISC 360.

Keywords： axial behavior     aluminum     concrete-filled     double-skin     slender columns     numerical modelling    

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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:

The gerotor pumps are the most important parts of mechanical equipment that have a vast number of applications in industries and automobiles. Because the gerotor pumps cannot be adjusted for wear so it is important to reduce the wear as much as possible. In this paper first mathematical equations for elliptical lobe shape rotors profile and curvature of them have been derived and then Specific flow and wear rate proportional factor (WRPF) have been formulated. To reach the minimum wear in rotors teeth, the ellipse shape factor is changed for each value of number of outer rotor teeth in a feasible range and wear rate proportional factor has been resulted. Also in order to have better comparison specific flow has been presented. The obtained results have been compared with circular pumps with similar geometrical parameters and show the significant improvement in wear of the rotors with negligible changes in the specific flow.

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

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New response surface model and its applications in aerodynamic optimization of axial compressor blade

LIU Xiaojia, NING Fangfei

Frontiers in Energy 2008, Volume 2, Issue 4,   Pages 541-549 doi: 10.1007/s11708-008-0077-3

Abstract: A parametric method for the axial compressor 2D blade profiles is proposed in which the blade geometriesBased on this model, a numerical aerodynamic optimization platform for the axial compressor 2D blade

Keywords： definition     objective distribution     fitting precision     combination     numerical aerodynamic    

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Extended two-fluid model applied to analysis of bubbly flow in multiphase rotodynamic pump impeller

Zhiyi YU, Guoyu WANG, Shuliang CAO

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 1,   Pages 53-59 doi: 10.1007/s11465-009-0006-0

Abstract: and air-water two-phase flow with the inlet gas volume fraction being 15% in a multiphase rotodynamic pumpimpeller and the pump head performance is predicted.

Keywords： two-fluid model     multiphase rotodynamic pump     SIMPLEC algorithm     numerical simulation    

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R&D of the ground-coupled heat pump technology in China

Nairen DIAO, Ping CUI, Junhong LIU, Zhaohong FANG,

Frontiers in Energy 2010, Volume 4, Issue 1,   Pages 47-54 doi: 10.1007/s11708-009-0080-3

Abstract: The ground-coupled heat pump (GCHP) systems have been identified as one of the best sustainable energy

Keywords： ground source heat pump     ground heat exchanger     HVAC     China    

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Title Author Date Type Operation

Fast scaling approach based on cavitation conditions to estimate the speed limitation for axial pistonpump design

Qun CHAO, Jianfeng TAO, Junbo LEI, Xiaoliang WEI, Chengliang LIU, Yuanhang WANG, Linghui MENG

Journal Article

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

Journal Article

Development of an analytical model to estimate the churning losses in high-speed axial piston pumps

Journal Article

Fault diagnosis of axial piston pumps with multi-sensor data and convolutional neural network

Journal Article

Multi-objective optimization of surface texture for the slipperswash plate interface in EHA pumps

Journal Article

Characteristics of force acting on adjustable axial flow pump blade

WEI Peiru, CHEN Hongxun, LU Wei

Journal Article

Design approach for single piston hydraulic free piston diesel engines

Wei WU, Shihua YUAN, Jibin HU, Chongbo JING,

Journal Article

An experimental study of a single-piston free piston linear generator

Jin XIAO, Yingdong CHENG, Jinlong WANG, Chengwei ZHU, Zhen HUANG

Journal Article

Design and modeling of a free-piston engine generator

Journal Article

Influence of steel corrosion on axial and eccentric compression behavior of coral aggregate concrete

Journal Article

Numerical study of axial-loaded circular concrete-filled aluminum tubular slender columns

Journal Article

Elliptical lobe shape gerotor pump design to minimize wear

Mohammad Reza KARAMOOZ RAVARI

Journal Article

New response surface model and its applications in aerodynamic optimization of axial compressor blade

LIU Xiaojia, NING Fangfei

Journal Article

Extended two-fluid model applied to analysis of bubbly flow in multiphase rotodynamic pump impeller

Zhiyi YU, Guoyu WANG, Shuliang CAO

Journal Article

R&D of the ground-coupled heat pump technology in China

Nairen DIAO, Ping CUI, Junhong LIU, Zhaohong FANG,

Journal Article