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On the lightweighting of automobile

Ma Mingtu,Yi Hongliang,Lu Hongzhou,Wan Xinming

Strategic Study of CAE 2009, Volume 11, Issue 9,   Pages 20-27

Abstract: Lightweighting design, the relationship between the performances of auto parts & components and the

Keywords： lightweighting of automobile     evaluation methods     description parameters     performances of parts     property    

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Continuous reaction performances of benzene alkylation with long chain olefins catalyzed by ionic liquid

QIAO Congzhen, LI Chengyue

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 1,   Pages 69-73 doi: 10.1007/s11705-008-0014-3

Abstract: a compulsive mixing-reacting-separating-recycling small experimental setup,the continuous reaction performances

Keywords： stability     different     hypecritical     compulsive mixing-reacting-separating-recycling     non-benzene    

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Advances in polishing of internal structures on parts made by laser-based powder bed fusion

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 1, doi: 10.1007/s11465-022-0724-0

Abstract: fusion (L-PBF) is an attractive approach because its layering principle enables the fabrication of partswith a discussion on the challenges and prospects for improving the interior surface quality of L-PBF parts

Keywords： laser-based powder bed fusion     polishing     internal structures     surface quality     surface features     post process     additive manufacturing    

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Fixturing technology and system for thin-walled parts machining: a review

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 4, doi: 10.1007/s11465-022-0711-5

Abstract: During the overall processing of thin-walled parts (TWPs), the guaranteed capability of the machining

Keywords： thin-walled part (TWP)     fixture     machining     fixture categories     fixture function    

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Current research, key performances and future development of search and rescue robots

LIU Jinguo, WANG Yuechao, LI Bin, MA Shugen

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 4,   Pages 404-416 doi: 10.1007/s11465-007-0070-2

Abstract: According to current research, experiences and the lessons learned from applications, the five key performancesDisaster prevention, disaster reduction and disaster rescue are the important parts of national public

Keywords： national development     communicability     mobility     national     intelligent network    

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Non-thermal plasma enhances performances of biochar in wastewater treatment and energy storage applications

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 4,   Pages 475-483 doi: 10.1007/s11705-021-2070-x

Abstract: This study may provide guidelines for enhancing the surface functionality and application performances

Keywords： non-thermal plasma     surface functionalization     biochar modification     wastewater treatment     supercapacitor    

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Determining casting defects in near-net shape casting aluminum parts by computed tomography

Jiehua LI, Bernd OBERDORFER, Daniel HABE, Peter SCHUMACHER

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 1,   Pages 48-52 doi: 10.1007/s11465-018-0493-y

Abstract:

Three types of near-net shape casting aluminum parts were investigated by computed tomography to determineThe first, second, and third parts were produced by low-pressure die casting (Al-12Si-0.8Cu-0.5Fe-0.9Mgdefects indicates that semi-solid casting could produce high-quality near-net shape casting aluminum partscomputed tomography is an efficient method to determine casting defects in near-net shape casting aluminum parts

Keywords： near-net shape casting     aluminum parts     casting defects     low pressure die casting     die casting     semi-solid    

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Improving the performances of ultrasonic motors using intermittent contact scheme

Jiamei JIN, Jianhui ZHANG, Fu QIAN, Zhenfeng PAN,

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 2,   Pages 242-246 doi: 10.1007/s11465-010-0016-y

Abstract: Most ultrasonic motors operate in intermittent contact scheme. Their stators drive the rotors (or sliders) when the stators contact the rotors, and the rotors (or sliders) move under an inertia force when the stators and the rotors are separated. The duty cycle of the contact and the “flight” manages motors’ output performance. To obtain a large output force or output velocity, this paper proposes a concept using the alternative work of a multi-stator or the multi-driving end of a single stator. The method can avoid larger noise, poor efficiency, and lifetime of motors. A novel linear ultrasonic motor using the alternative work of the multi-driving end of a single stator was fabricated and investigated experimentally. The traveling speed without load of the slider is 88 mm/s, and the maximum load is 0.32 N.

Keywords： ultrasonic motor     intermittent contact     alternative work    

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Preparation and adsorption performances of mesopore-enriched bamboo activated carbon

WANG Yuxin, LIU Congmin, ZHOU Yaping

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 4,   Pages 473-477 doi: 10.1007/s11705-008-0081-5

Abstract: Activated carbon with high specific surface area and considerable mesopores was prepared from bamboo scraps by phosphoric acid activation. The effect of activation conditions was studied. Under the conditions of impregnating bamboo with 80% HPO at 80°C for 9 days and activation at 500°C for 4 h, the prepared activated carbon had the highest mesopore volume of 0.67 cm/g, a specific surface area of 1567 m/g, and the mesopore ratio reached 47.18%. The study on adsorption isotherms of CH, CO, N and O on the activated carbon were carried out at 298 K. The considerable difference in the adsorption capacity between CO and the other gases was observed, which would be of interest for the adsorptive separation/purification of gaseous CO from its mixtures, especially from mixtures with N and/or O.

Keywords： mesopore volume     gaseous     considerable difference     adsorption capacity     activation    

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Typical off-design analytical performances of internal combustion engine cogeneration

Xiaohong HE, Ruixian CAI

Frontiers in Energy 2009, Volume 3, Issue 2,   Pages 184-192 doi: 10.1007/s11708-009-0007-z

Abstract: It is necessary to consider the influence of ambient conditions, especially the optimization of ICE performancesat different places, on cogeneration performances.

Keywords： internal combustion engine (ICE)     cogeneration     heat recovery steam generator (HRSG)     off-design     superheated steam     saturated steam     ambient pressure    

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Forecast method for used number of parts and components based on complex network

LIU Fu-yun, QI Guo-ning, YANG Qing-hai

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 4,   Pages 479-484 doi: 10.1007/s11465-006-0064-5

Abstract: A forecast method for the increment of component numbers and parts based on the increment of products

Keywords： complex network     industrial     component     analytic expression     forecast    

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The prediction technology study of fatigue life for key parts of a tracked vehicle’s suspension system

WANG Hongyan, RUI Qiang, HE Xiaojun

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 1,   Pages 68-71 doi: 10.1007/s11465-007-0011-0

Abstract: In allusion to fatigue life of a tracked vehicle torsion bar, a virtual prototype model of the tracked vehicle suspension system including a flexible torsion bar was built based on dynamic simulation software ADAMS. Node force and stress results of the torsion bar from last step simulation were acquired; taking into account the material characteristics and influential factors, fatigue life of the flexible body of the torsion bar was predicted. Engineering results can be acquired through the contrast of the result of virtual test and statistical fatigue.

Keywords： dynamic simulation     simulation software     allusion     influential     material    

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Enhanced performances in catalytic oxidation of

Nanli QIAO,Xin ZHANG,Chi HE,Yang LI,Zhongshen ZHANG,Jie CHENG,Zhengping HAO

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 3,   Pages 458-466 doi: 10.1007/s11783-015-0802-1

Abstract: A series of hierarchical macro-/mesoporous silica supports (MMSs) were successfully synthesized using dual-templating technique employing polystyrene (PS) spheres and the Pluronic P123 surfactant. Pd was next loaded on the hierarchical silica supports via colloids precipitation method. Physicochemical properties of the synthesized samples were characterized by various techniques and all catalysts were tested for the total oxidation of -xylene. Among them, the Pd/MMS-b catalyst with tetraethoxysilane/polystyrene weight ratio of 1.0 exhibited superior catalytic activity, and under a higher gas hourly space velocity (GHSV) of 70000 h , the 90% conversion of -xylene has been obtained at around 200°C. The BET and SEM results indicated that Pd/MMS-b catalyst possesses high surface area and large pore volume, and well-ordered, interconnected macropores and 2D hexagonally mesopores hybrid network. This novel ordered hierarchical porous structure was highly beneficial to the dispersion of active sites Pd nanoparticles with less aggregation, and facilitates diffusion of reactants and products. Furthermore, the Pd/MMS-b catalyst possessed good stability and durability.

Keywords： hierarchical macro-/mesoporous     silica     palladium     VOCs catalytic oxidation    

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Analytical study on damping performances of magnetorheological grease damper based on disk squeeze mode

Danxia ZHAO, Changrong LIAO, Qiong LIU, Jing LUO

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 3,   Pages 312-317 doi: 10.1007/s11465-011-0235-x

Abstract:

In this paper, a small displacement-type magnetorheological grease (MRG) damper based on disk squeeze mode is proposed. The squeeze flow differential equation is obtained. The Navier slip condition is considered on the surfaces and the boundary compatible condition is established. The radial velocity profiles and the radial pressure distributions are derived respectively, and the mathematical stress expression is calculated. To verify rationality of analytical method, the MRG damper is designed and fabricated according to the technical requirements of an engine vibration isolation system. The experimental damping force from MTS870 Electro-hydraulic Servo with sine wave excitation shows that the proposed analytical method is feasible and provides the reference value for designing MRG damper based on disk squeeze mode.

Keywords： magnetorheological grease (MRG)     damper     squeeze model    

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Build orientation determination of multi-feature mechanical parts in selective laser melting via multi-objective

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 2, doi: 10.1007/s11465-022-0737-8

Abstract: melting (SLM) is a unique additive manufacturing (AM) category that can be used to manufacture mechanical partsThis study proposes a method to determine the build orientation of multi-feature mechanical parts (MFMPs

Keywords： selective laser melting (SLM)     build orientation determination     multi-feature mechanical part (MFMP)     fuzzy analytical hierarchy process     multi-objective decision making (MODM)    

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Title Author Date Type Operation

On the lightweighting of automobile

Ma Mingtu,Yi Hongliang,Lu Hongzhou,Wan Xinming

Journal Article

Continuous reaction performances of benzene alkylation with long chain olefins catalyzed by ionic liquid

QIAO Congzhen, LI Chengyue

Journal Article

Advances in polishing of internal structures on parts made by laser-based powder bed fusion

Journal Article

Fixturing technology and system for thin-walled parts machining: a review

Journal Article

Current research, key performances and future development of search and rescue robots

LIU Jinguo, WANG Yuechao, LI Bin, MA Shugen

Journal Article

Non-thermal plasma enhances performances of biochar in wastewater treatment and energy storage applications

Journal Article

Determining casting defects in near-net shape casting aluminum parts by computed tomography

Jiehua LI, Bernd OBERDORFER, Daniel HABE, Peter SCHUMACHER

Journal Article

Improving the performances of ultrasonic motors using intermittent contact scheme

Jiamei JIN, Jianhui ZHANG, Fu QIAN, Zhenfeng PAN,

Journal Article

Preparation and adsorption performances of mesopore-enriched bamboo activated carbon

WANG Yuxin, LIU Congmin, ZHOU Yaping

Journal Article

Typical off-design analytical performances of internal combustion engine cogeneration

Xiaohong HE, Ruixian CAI

Journal Article

Forecast method for used number of parts and components based on complex network

LIU Fu-yun, QI Guo-ning, YANG Qing-hai

Journal Article

The prediction technology study of fatigue life for key parts of a tracked vehicle’s suspension system

WANG Hongyan, RUI Qiang, HE Xiaojun

Journal Article

Enhanced performances in catalytic oxidation of

Nanli QIAO,Xin ZHANG,Chi HE,Yang LI,Zhongshen ZHANG,Jie CHENG,Zhengping HAO

Journal Article

Analytical study on damping performances of magnetorheological grease damper based on disk squeeze mode

Danxia ZHAO, Changrong LIAO, Qiong LIU, Jing LUO

Journal Article

Build orientation determination of multi-feature mechanical parts in selective laser melting via multi-objective

Journal Article