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An improved algorithm for McDowell’s analytical model of residual stress

Zhaoxu QI,Bin LI,Liangshan XIONG

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 2,   Pages 150-155 doi: 10.1007/s11465-014-0295-9

Abstract:

The analytical model for two-dimensional elastoplastic rolling/sliding contact proposed by McDowellis an important tool for predicting residual stress in rolling/sliding processes.

Keywords： residual stress     McDowell’s model     volume-constancy of plastic deformation     FEM     elastoplastic rolling/sliding    

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3D mode discrete element method with the elastoplastic model

Wei HU, Feng JIN, Chong ZHANG, Jinting WANG

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 1,   Pages 57-68 doi: 10.1007/s11709-012-0139-9

Abstract: In this paper, the elastoplastic constitutive relationship of blocks is implemented on the 3MDEM platformFinally, a cantilever beam is simulated as a comprehensive case study, which went through elastic, elastoplastic

Keywords： mode discrete element method     elastoplastic     numerical method     discontinuum     contact    

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Robust SVM-direct torque control of induction motor based on sliding mode controller and sliding mode

Abdelkarim AMMAR,Amor BOUREK,Abdelhamid BENAKCHA

Frontiers in Energy 2020, Volume 14, Issue 4,   Pages 836-849 doi: 10.1007/s11708-017-0444-z

Abstract: It describes a coupling of sliding mode direct torque control (DTC) with sliding mode flux and speedThis algorithm uses direct torque control basics and the sliding mode approach.The sliding mode controller is used to generate reference voltages in stationary frame and give themThe second aim of this paper is to design a sliding mode speed/flux observer which can improve the control

Keywords： induction motor     direct torque control (DTC)     space vector modulation (SVM)     sliding mode control (SMC)     sliding mode observer (SMO)     dS1104    

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A rolling 6U parallel mechanism

Zhihuai MIAO, Yanan YAO

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 1,   Pages 96-98 doi: 10.1007/s11465-011-0214-2

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Novel probabilistic rolling regular tetrahedron mechanism

Yonghan GUAN, Yan’an YAO, Chao LIU, Ruiming LI

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 2,   Pages 363-378 doi: 10.1007/s11465-020-0628-9

Abstract: In this study, a novel mechanism that can conduct probabilistic rolling is proposed to reach a designatedAccording to mobility and kinematic analyses, the mechanism can implement probabilistic rolling.Each rolling gait has three probable rolling directions, and the mechanism rolls in one of the threeFurthermore, the mathematical principle of probabilistic rolling is revealed in terms of probabilityTo achieve the rolling function, the design of the linear actuators is improved, and the extension ratio

Keywords： mobile mechanism     probabilistic motion     rolling mechanism     stochastic motion    

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A rolling 3-UPU parallel mechanism

Zhihuai MIAO, Yan’an YAO, Xianwen KONG

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 4,   Pages 340-349 doi: 10.1007/s11465-013-0282-6

Abstract:

A novel rolling mechanism is proposed based on a 3-UPU parallel mechanism in this paper.The rolling mechanism is composed of two platforms connected by three UPU (universal-prismatic-universalFour rolling modes of the mechanism are discussed and simulated.The feasibility of the rolling mechanism is verified by means of a physical prototype.Finally, its terrain adaptability is enhanced through planning the rolling gaits.

Keywords： parallel mechanism     rolling mechanism     screw theory    

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An adaptive sliding mode control technology for weld seam tracking

Jie LIU,Youmin HU,Bo WU,Kaibo ZHOU,Mingfeng GE

Frontiers of Mechanical Engineering 2015, Volume 10, Issue 1,   Pages 95-101 doi: 10.1007/s11465-015-0332-3

Abstract:

A novel adaptive sliding mode control algorithm is derived to deal with seam tracking control problemalgorithm enables better high-precision tracking performance with chattering-free than traditional sliding

Keywords： weld seam tracking     welding robotic manipulator     adaptive control     sliding mode control    

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Finite element modeling of cable sliding and its effect on dynamic response of cable-supported truss

Yujie YU, Zhihua CHEN, Renzhang YAN

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 5,   Pages 1227-1242 doi: 10.1007/s11709-019-0551-5

Abstract: cable-supported structures usually bears high tension forces, and clip joints may fail to resist cable slidingA analytical method that considers the dynamic cable sliding effect is proposed in this paper.The cable sliding effect and the frictional tension loss are solved with the original length method thatThen, the balanced tension distributions are calculated after frictional sliding.During seismic excitations, the cable sliding behavior in the cable-supported truss have an averaging

Keywords： sliding cable     explicit solution framework     original length method     seismic response     cable rupture    

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Research and industrialization of near-net rolling technology used in shaft parts

Zhenghuan HU, Baoyu WANG, Zhenhua ZHENG

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 1,   Pages 17-24 doi: 10.1007/s11465-018-0480-3

Abstract:

Shaft part rolling is an efficient and green near-net shaping technology offering many advantages,In this paper, the features of shaft part rolling are introduced along with the working principles oftwo main shaft part rolling technologies, namely, cross wedge rolling (CWR) and skew rolling (SR).Finally, the latest developments in shaft part rolling are presented, including SR steel balls, preciseAlthough the shaft part rolling technology has been widely used in China, it only accounts for about

Keywords： cross wedge rolling     skew rolling     near-net rolling     shaft part    

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Outline of Strip Rolling Technological Control Theory

Zhang Jinzhi

Strategic Study of CAE 2001, Volume 3, Issue 4,   Pages 46-55

Abstract:

Classical rolling theory, which is based on the law of the lowest resistance,the condition of constantvolume and the condition of equal flow per second,has formed a fairly integrated rolling applied technologyThis system reflects only the static law of rolling process,so it is necessary to control dynamic rollingtheory, classical rolling theory based on mechanics took the lead before the establishment of springA new theory system, which is based on fundamental rolling technology control theory, is set up.

Keywords： continuous rolling process control     tension in continuous rolling     gauge control     shape stiffness     springequation for rolling mill     comprehensive equal reserves for load distribution    

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Rolling-element bearings in China: From ancient times to the 20th century

Lie SUN,Ang LI

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 1,   Pages 33-43 doi: 10.1007/s11465-016-0373-2

Abstract:

The development of rolling-element bearings in China has spanned a long period.Based on several typical and important cases, the present article reconstructs the history of rolling-elementThe first stage represents the origin of rolling bearings in China, which remains controversial becauseAnother type of spherical thrust bearings with rolling elements, which is a key component of a traditionalbearings as replacement for traditional sliding bearings.

Keywords： bearing movement     rolling-element bearing     China     early rolling bearings     technology transfer    

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simulation and analysis of periodically oscillating pressure characteristics of inviscid flow in a rolling

Yan GU, Yonglin JU

Frontiers in Energy 2012, Volume 6, Issue 1,   Pages 21-28 doi: 10.1007/s11708-012-0173-2

Abstract: in order to understand the periodically oscillating pressure characteristics of inviscid flow in the rollingThe computational model of the circular pipe flow is established with the excitated rolling motion, atFurthermore, theoretical analyses of the flow in the rolling circular pipe are conducted and the results

Keywords： pressure fluctuation     rolling     floating production storage and offloading unit for liquefied natural gas    

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Output tracking control of mobile manipulators based on dynamical sliding-mode control

WUYuxiang, FENG Ying, HU Yueming

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 1,   Pages 110-115 doi: 10.1007/s11465-007-0019-5

Abstract: A dynamical sliding-mode controller is devised to track the output of mobile manipulators.Moreover, a design method of the dynamical sliding-mode controller that is applied to the output trackingThe simulation results indicate that the dynamical sliding-mode controller can not only track the giventrajectory correctly but also reduce the chattering of sliding-mode control system considerably.

Keywords： lower-dimensional     nonlinear     trajectory     tracking     diffeomorphism    

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DFIG sliding mode control fed by back-to-back PWM converter with DC-link voltage control for variable

Youcef BEKAKRA,Djilani BEN ATTOUS

Frontiers in Energy 2014, Volume 8, Issue 3,   Pages 345-354 doi: 10.1007/s11708-014-0330-x

Abstract: An original control strategy based on a variable structure control theory, also called sliding mode control

Keywords： fed induction generator (DFIG)     wind turbine     back-to-back pulse width modulation (PWM)     DC-link voltage     sliding    

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Review of the damage mechanism in wind turbine gearbox bearings under rolling contact fatigue

Yun-Shuai SU, Shu-Rong YU, Shu-Xin LI, Yan-Ni HE

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 4,   Pages 434-441 doi: 10.1007/s11465-018-0474-1

Abstract: Gearbox bearings are subjected to rolling contact fatigue (RCF) and they are observed to fail due to

Keywords： rolling contact fatigue (RCF)     white etching area (WEA)     white etching crack (WEC)     adiabatic shear band    

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Title Author Date Type Operation

An improved algorithm for McDowell’s analytical model of residual stress

Zhaoxu QI,Bin LI,Liangshan XIONG

Journal Article

3D mode discrete element method with the elastoplastic model

Wei HU, Feng JIN, Chong ZHANG, Jinting WANG

Journal Article

Robust SVM-direct torque control of induction motor based on sliding mode controller and sliding mode

Abdelkarim AMMAR,Amor BOUREK,Abdelhamid BENAKCHA

Journal Article

A rolling 6U parallel mechanism

Zhihuai MIAO, Yanan YAO

Journal Article

Novel probabilistic rolling regular tetrahedron mechanism

Yonghan GUAN, Yan’an YAO, Chao LIU, Ruiming LI

Journal Article

A rolling 3-UPU parallel mechanism

Zhihuai MIAO, Yan’an YAO, Xianwen KONG

Journal Article

An adaptive sliding mode control technology for weld seam tracking

Jie LIU,Youmin HU,Bo WU,Kaibo ZHOU,Mingfeng GE

Journal Article

Finite element modeling of cable sliding and its effect on dynamic response of cable-supported truss

Yujie YU, Zhihua CHEN, Renzhang YAN

Journal Article

Research and industrialization of near-net rolling technology used in shaft parts

Zhenghuan HU, Baoyu WANG, Zhenhua ZHENG

Journal Article

Outline of Strip Rolling Technological Control Theory

Zhang Jinzhi

Journal Article

Rolling-element bearings in China: From ancient times to the 20th century

Lie SUN,Ang LI

Journal Article

simulation and analysis of periodically oscillating pressure characteristics of inviscid flow in a rolling

Yan GU, Yonglin JU

Journal Article

Output tracking control of mobile manipulators based on dynamical sliding-mode control

WUYuxiang, FENG Ying, HU Yueming

Journal Article

DFIG sliding mode control fed by back-to-back PWM converter with DC-link voltage control for variable

Youcef BEKAKRA,Djilani BEN ATTOUS

Journal Article

Review of the damage mechanism in wind turbine gearbox bearings under rolling contact fatigue

Yun-Shuai SU, Shu-Rong YU, Shu-Xin LI, Yan-Ni HE

Journal Article