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Research of an Improved Bridge Type Solid-state Current Limiter

Li Hongfeng,Jia Guixi,Qi Wei,Xu Wei

Strategic Study of CAE 2005, Volume 7, Issue 8,   Pages 75-79

Abstract: The results show that the FCL mode is successful in both computer simulation and laboratory test in limiting

Keywords： short circuit current limiter     novel bridge type circuit     simulation based on Matlab/Simulink     dynamic-mode    

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Full-field dynamic strain reconstruction of an aero-engine blade from limited displacement responses

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 1, doi: 10.1007/s11465-022-0731-1

Abstract: A displacement-to-strain transformation matrix is derived on the basis of the blade mode shapes in theThis paper provides a low-cost, real-time, and visualized measurement of blade full-field dynamic strain

Keywords： aero-engine blade     displacement response     dynamic strain reconstruction     mode shape     strain gauge    

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Higher-order mode effects on the seismic performance of tall piers

Zhongguo GUAN, Jianzhong LI, Yan XU, Hao LU

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 4,   Pages 496-502 doi: 10.1007/s11709-011-0131-9

Abstract: A comprehensive analysis was conducted to investigate the seismic performance of a typical tall bridge pier through incremental dynamical analysis (IDA). The effect of higher-order modes was studied specifically. The results showed that higher-order modes significantly contributed to the structural seismic response and should not be neglected. Including these modes resulted in an additional hinge midway up the pier. No plastic hinge would occur at this location for conventional bridge piers. Higher-order modes also led to an out-of-phase response between the hinge rotation at the pier bottom and the displacement at the top. This means that the displacement-based seismic design method cannot correctly predict the mechanical state of the critical hinge and therefore is not suitable for use in the seismic design of tall piers. Mistakenly using the displacement-based seismic design method for tall piers may result in a seriously unsafe condition.

Keywords： tall bridges     higher-order mode effects     incremental dynamic analysis    

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A review on ductile mode cutting of brittle materials

Elijah Kwabena ANTWI, Kui LIU, Hao WANG

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 2,   Pages 251-263 doi: 10.1007/s11465-018-0504-z

Abstract: Ductile mode cutting is a very promising way to achieve high quality and crack-free surfaces of brittleThus the study of ductile mode cutting of brittle materials has been attracting more and more effortsThis paper provides an overview of ductile mode cutting of brittle materials including ductile natureand plasticity of brittle materials, cutting mechanism, cutting characteristics, molecular dynamic simulationIt is believed that ductile mode cutting of brittle materials could be achieved when both crack-free

Keywords： ductile mode cutting     brittle materials     critical undeformed chip thickness     brittle-ductile transition     subsurface damage     molecular dynamic simulation    

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Dynamics of structural systems with various frequency-dependent damping models

Li LI,Yujin HU,Weiming DENG,Lei LÜ,Zhe DING

Frontiers of Mechanical Engineering 2015, Volume 10, Issue 1,   Pages 48-63 doi: 10.1007/s11465-015-0330-5

Abstract:

The aim of this paper is to present the dynamic analyses of the system involving various damping modelsBoth the mode superposition method and Fourier transform method are developed for calculating the dynamic

Keywords： damping     viscoelasticity     dynamic analysis     mode superposition method     Fourier transform method    

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Obstacle-circumventing adaptive control of a four-wheeled mobile robot subjected to motion uncertainties

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 3, doi: 10.1007/s11465-023-0753-3

Abstract: synergistic robustness and smooth navigation of mobile robots subjected to motion uncertainties in a dynamicSpecifically, a novel anti-disturbance terminal slide mode control with adaptive gains is formulated,By introducing sub-target points, a new sub-target dynamic tracking regression obstacle avoidance strategyis presented to transfer the obstacle avoidance problem into a dynamic tracking one, thereby reducing

Keywords： four-wheeled mobile robot     obstacle-circumventing adaptive control     adaptive anti-disturbance terminal sliding modecontrol     sub-target dynamic tracking regression obstacle avoidance    

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Dynamic Carbon Neutrality Mode for Coal-Based Energy Systems and Effectiveness Assessment Thereof

Ge Shirong, Wang Bing, Feng Haohao, Jiang Xinru, Li Xue

Strategic Study of CAE 2023, Volume 25, Issue 5,   Pages 122-135 doi: 10.15302/J-SSCAE-2023.05.011

Abstract: Creating a novel dynamic carbon neutrality mode for coal-based energy systems is a forward-looking developmenta system framework, and discloses the security guarantee and emissions reduction mechanisms of the dynamiccarbon neutrality mode for coal-based energy systems.carbon neutrality mode and the carbon capture and storage technology, and is expected to be furtherFurthermore, we propose that a novel coal-based energy system supported by dynamic carbon neutrality

Keywords： coal-fueled energy     coal-based energy     dynamic carbon neutrality     energy security     carbon emission reduction    

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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.conventional SVM-DTC drawbacks and to ensure fast response and full reference tracking with desired dynamicThe 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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Parallel Authentication Modes Based on Double Blocks or Key Counter

Huang Yuhua,Huai Aiqun,Song Yubo

Strategic Study of CAE 2004, Volume 6, Issue 7,   Pages 70-74

Abstract:

The CBC - MAC mode is not a parallel one.The PKCB mode had a marked improvement on security & speed over parallel authentication mode, PMACAnd it may be combined with the CTR (counter) encryption mode to form a full block cipher mode.block cipher mode (2CTR)，too.The 2CTR mode had a performance advantage over the standard mode, CCM (CTR with CBC - MAC).

Keywords： authentication mode     CBC - MAC mode     PMAC mode     CTR mode     CCM mode    

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Probabilistic stability of uncertain composite plates and stochastic irregularity in their buckling mode

Frontiers of Structural and Civil Engineering   Pages 179-190 doi: 10.1007/s11709-022-0888-z

Abstract: plate were considered Gaussian random fields and their effects on the buckling load and corresponding modespatially varying stochastic properties on the critical load of the plate and the irregularity of buckling modethe plate properties as random fields, a significant stochastic irregularity is obtained in buckling mode

Keywords： uncertain composite plate     stochastic assume mode method     Karhunen−Loève theorem     polynomial chaos approach     plate buckling     irregularity in buckling mode shapes    

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Experimental investigation of evolutive mode-I and mode-II fracture behavior of fiber-reinforced cemented

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 2,   Pages 256-270 doi: 10.1007/s11709-022-0924-z

Abstract: temperature (20, 35, and 45 °C) and cement hydration at different curing times (3, 7, and 28 d) on the mode-Iand mode-II fracture behavior and properties of fiber-reinforced CPB is investigated.

Keywords： fiber reinforcement     cemented paste backfill     fracture behavior     underground mine     cement hydration    

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Engineering Application of FEM Updating Technology

Chen Decheng,Wei Zhensong,Qu Guangji,Zhu An wen,Xiao Yifang

Strategic Study of CAE 2001, Volume 3, Issue 10,   Pages 59-63

Abstract:

In this paper, focusing on practical engineering application of Finite Element Model (FEM) updating technology, the authors discuss some key problems and bring forward their own points of view. This paper explains the basic thought and numerical method of a FEM updating approach that has achieved the level of practical engineering application. This paper also presents the difficulties in the practical engineering application of Finite Element Model (FEM) updating technology, and indicates the ways by which those difficulties can be solved.

Keywords： FEM updating     test model     sensitivity     dynamic reduction     natural frequency     mode shape    

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Application of direct adaptive fuzzy slidingmode control into a class of non-affine discrete nonlinear systems Article

Xiao-yu ZHANG

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 12,   Pages 1331-1343 doi: 10.1631/FITEE.1500318

Abstract: Direct adaptive fuzzy sliding mode control design for discrete non-affine nonlinear systems is presentedTo obtain adaptiveness and eliminate chattering of sliding mode control, a dynamic fuzzy logical systemStability of the sliding mode control is validated using the Lyapunov analysis theory.

Keywords： Nonlinear system     Discrete system     Dynamic fuzzy logical system     Direct adaptive     Sliding mode control    

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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 problemThe proposed algorithm does not require the precise dynamic model, and is more practical.algorithm enables better high-precision tracking performance with chattering-free than traditional sliding mode

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

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Relative vibration identification of cutter and workpiece based on improved bidimensional empirical mode

Jiasheng LI, Xingzhan LI, Wei WEI, Pinkuan LIU

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 2,   Pages 227-239 doi: 10.1007/s11465-020-0587-1

Abstract: In this study, the bidimensional empirical mode decomposition (BEMD) method is used to identify such

Keywords： bidimensional empirical mode decomposition     spatial spectrum analysis     boundary effect     vibration identification    

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Title Author Date Type Operation

Research of an Improved Bridge Type Solid-state Current Limiter

Li Hongfeng,Jia Guixi,Qi Wei,Xu Wei

Journal Article

Full-field dynamic strain reconstruction of an aero-engine blade from limited displacement responses

Journal Article

Higher-order mode effects on the seismic performance of tall piers

Zhongguo GUAN, Jianzhong LI, Yan XU, Hao LU

Journal Article

A review on ductile mode cutting of brittle materials

Elijah Kwabena ANTWI, Kui LIU, Hao WANG

Journal Article

Dynamics of structural systems with various frequency-dependent damping models

Li LI,Yujin HU,Weiming DENG,Lei LÜ,Zhe DING

Journal Article

Obstacle-circumventing adaptive control of a four-wheeled mobile robot subjected to motion uncertainties

Journal Article

Dynamic Carbon Neutrality Mode for Coal-Based Energy Systems and Effectiveness Assessment Thereof

Ge Shirong, Wang Bing, Feng Haohao, Jiang Xinru, Li Xue

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

Parallel Authentication Modes Based on Double Blocks or Key Counter

Huang Yuhua,Huai Aiqun,Song Yubo

Journal Article

Probabilistic stability of uncertain composite plates and stochastic irregularity in their buckling mode

Journal Article

Experimental investigation of evolutive mode-I and mode-II fracture behavior of fiber-reinforced cemented

Journal Article

Engineering Application of FEM Updating Technology

Chen Decheng,Wei Zhensong,Qu Guangji,Zhu An wen,Xiao Yifang

Journal Article

Application of direct adaptive fuzzy slidingmode control into a class of non-affine discrete nonlinear systems

Xiao-yu ZHANG

Journal Article

An adaptive sliding mode control technology for weld seam tracking

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

Journal Article

Relative vibration identification of cutter and workpiece based on improved bidimensional empirical mode

Jiasheng LI, Xingzhan LI, Wei WEI, Pinkuan LIU

Journal Article