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Research and Applications of Piston Wind VelocityModel for Mine Hoisting System

Wang Conglu,Wu Chao,Wang Weijun,Wu Aiyou

Strategic Study of CAE 2007, Volume 9, Issue 11,   Pages 182-186

Abstract: Piston wind velocity engendered by hoisting system is one of the primary factors.equation and continuity equation of non-steady flow, the paper presents the calculation formula of pistonwind velocity in mine hoisting systems by assuming different passing section.According to the formula, piston wind velocity can be quantitatively calculate, which will be used as

Keywords： non-invariableness flow     Bernoulli equation     hoisting system     piston wind velocity     mineventilation stability    

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Estimation of power in low velocity vertical axis wind turbine

Sampath S. S.,Sawan SHETTY,Chithirai Pon Selvan M.

Frontiers of Mechanical Engineering 2015, Volume 10, Issue 2,   Pages 211-218 doi: 10.1007/s11465-015-0338-x

Abstract:

The present work involves in the construction of a vertical axis wind turbine and the determination

Keywords： wind turbine     shaft design     power generation     generator    

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Investigation on available wind energy at Tungku beach

M. G. YAZDANI, M. A. SALAM

Frontiers in Energy 2012, Volume 6, Issue 3,   Pages 275-279 doi: 10.1007/s11708-012-0194-x

Abstract: In this paper, wind velocities and directions (sea and land) are recorded in different days and timesThe potential of wind energy is predicted from the available data collected.The power density for wind farming is found to be 0.26 (mean) and 0.19 (median), 0.31 (mean) and 0.22

Keywords： wind velocity     temperature     tower height     power density     Raleigh distribution     electrical power    

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Comparison and harmonization of building wind loading codes among the Asia-Pacific Economies

Yaojun GE, Shuyang CAO, Xinyang JIN

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 4,   Pages 402-410 doi: 10.1007/s11709-013-0230-x

Abstract: This paper reviews wind loading codes and standards in the Asia-Pacific Region, in particular in theA general description of wind loading model is given as a famous wind loading chain described by fourvariables including velocity pressure, exposure factor, pressure coefficient, and gust response factorcalculations for three examples of low, medium and high rise buildings, these four important variables of wind

Keywords： wind loading     codification     velocity pressure     exposure factor     pressure coefficient     gust response factor    

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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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Research on non-mechanical ventilation effect in Zhongnanshan road tunne

Zheng Xuan,Guo Jiaqi

Strategic Study of CAE 2010, Volume 12, Issue 3,   Pages 39-44

Abstract: The research team monitored the natural wind initially, traffic flux and the wind induced by naturalventilation pressure and traffic wind force subsequently, and obtained lots of data.The calculating value of the natural wind speed by method which takes account of some parameters suchas wind orientation, frequency of wind orientation, the temperature of portal et al, approximates theThe calculating value of the wind speed induced by natural ventilation pressure and traffic wind force

Keywords： tunnel ventilation     field monitoring     non-mechanical ventilation     natural wind     traffic piston wind    

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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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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 piston

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

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Design and modeling of a free-piston engine generator

Frontiers in Energy   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 vehicles

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

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Safety and serviceability assessment for high-rise tower crane to turbulent winds

Zhi SUN, Nin HOU, Haifan XIANG

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 1,   Pages 18-24 doi: 10.1007/s11709-009-0009-2

Abstract: Spatially correlated wind velocity field at the location of the tower crane was first simulated usingThe buffeting forces applied to the structure were computed according to the above-simulated wind velocitymethod is then adopted for analyzing the buffeting response of an in-use tower crane under the design windspeed and the maximum operational wind speed for safety and serviceability assessment.

Keywords： tower crane     buffeting response     wind velocity     modeling    

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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, butanalytical model provides practical guidelines for reducing the churning losses in high-speed axial piston

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.Vibration and discharge pressure signals are two common signals used for the fault diagnosis of axial pistonThis 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 methodshow that the proposed multi-sensor data fusion method greatly improves the fault diagnosis of axial piston

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

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

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 phenomenonfrom an analytical cavitation model to estimate the speed limitations for the same series of axial pistonThe 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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A space power system of free piston Stirling generator based on potassium heat pipe

Mingqiang LIN, Jian MOU, Chunyun CHI, Guotong HONG, Panhe GE, Gu HU

Frontiers in Energy 2020, Volume 14, Issue 1,   Pages 1-10 doi: 10.1007/s11708-019-0655-6

Abstract: The power system of a free piston Stirling generator (FPSG) based on potassium heat pipes has been developed

Keywords： free piston Stirling generator (FPSG)     potassium heat pipe     power system     energy conversion    

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Performance of rolling piston type rotary compressor using fullerenes (C70) and NiFe

Ruixiang WANG,Yihao ZHANG,Yi LIAO

Frontiers in Energy 2020, Volume 14, Issue 3,   Pages 644-648 doi: 10.1007/s11708-017-0453-y

Abstract: A novel way for a compressor to improve its coefficient of performance was proposed in this paper. Fullerenes (C70) and NiFe O nanocomposites were modified by span 80 and dispersed in refrigeration oil by solid grinding (SG). Besides, the tribological properties of the nanocomposites were investigated using a four ball friction tester. The results show that when the mass concentration of fullerenes nanocomposite is higher than 60 ppm and the concentration of nano-oil is 2 g/L, the friction coefficient decreases from 0.13 to 0.06 which means the wear is reduced. The coefficient of performance of the compressor under the air conditioning test condition can be raised by 1.23%.

Keywords： rotary compressor     friction coefficient     nanocomposite materials     coefficient of performance     fullerenes (C70)    

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Title Author Date Type Operation

Research and Applications of Piston Wind VelocityModel for Mine Hoisting System

Wang Conglu,Wu Chao,Wang Weijun,Wu Aiyou

Journal Article

Estimation of power in low velocity vertical axis wind turbine

Sampath S. S.,Sawan SHETTY,Chithirai Pon Selvan M.

Journal Article

Investigation on available wind energy at Tungku beach

M. G. YAZDANI, M. A. SALAM

Journal Article

Comparison and harmonization of building wind loading codes among the Asia-Pacific Economies

Yaojun GE, Shuyang CAO, Xinyang JIN

Journal Article

Design approach for single piston hydraulic free piston diesel engines

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

Journal Article

Research on non-mechanical ventilation effect in Zhongnanshan road tunne

Zheng Xuan,Guo Jiaqi

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

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

Journal Article

Design and modeling of a free-piston engine generator

Journal Article

Safety and serviceability assessment for high-rise tower crane to turbulent winds

Zhi SUN, Nin HOU, Haifan XIANG

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

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

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

Journal Article

A space power system of free piston Stirling generator based on potassium heat pipe

Mingqiang LIN, Jian MOU, Chunyun CHI, Guotong HONG, Panhe GE, Gu HU

Journal Article

Performance of rolling piston type rotary compressor using fullerenes (C70) and NiFe

Ruixiang WANG,Yihao ZHANG,Yi LIAO

Journal Article