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Chord error constraint based integrated control strategy for contour error compensation

Tie ZHANG, Caicheng WU, Yanbiao ZOU

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 4,   Pages 645-658 doi: 10.1007/s11465-020-0601-7

Abstract: position error compensator, is proposed.To reduce the contour error, a PI-type cross-coupling controller is designed, with its stability beinganalyzed by using the contour error transfer function.Moreover, a feed rate regulator based on the chord error constraint is proposed, which performs speedcompensation of tracking error.

Keywords： cross-coupling controller     contour error     tracking error     position error compensator     feed rate regulator    

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Effects of residual motion compensation errors on the performance of airborne along-track interferometric Article

Hui ZHANG,Jun HONG,Xiao-lan QIU,Ji-chuan LI,Fang-fang LI,Feng MING

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 10,   Pages 1095-1106 doi: 10.1631/FITEE.1500311

Abstract: They usually introduce residual motion compensation errors for airborne single-antenna SAR imaging andIn this paper, we investigate the effects of residual uncompensated motion errors, which are caused byThe residual uncompensated errors caused by center-beam approximation in the absence and in the presencesimulation parameters are used to verify the correctness of the analysis and to show the impacts of residualThis research provides theoretical bases for the error source analysis and signal processing of airborne

Keywords： Synthetic aperture radar (SAR)     Along-track interferometric     Motion compensation     Residual error     Interferometric    

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Secondary transfer length and residual prestress of fractured strand in post-tensioned concrete beams

Lizhao DAI; Wengang XU; Lei WANG; Shanchang YI; Wen CHEN

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 3,   Pages 388-400 doi: 10.1007/s11709-022-0809-1

Abstract: concrete beams to explore the effects of different fracture positions on secondary transfer length and residualA numerical model is developed and used to predict the secondary transfer length and residual prestressThe residual prestress of fractured strand increases gradually in the secondary transfer length, and

Keywords： post-tensioned concrete beams     strand fracture     secondary transfer length     residual prestress    

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Minimal residual disease in solid tumors: an overview

Frontiers of Medicine 2023, Volume 17, Issue 4,   Pages 649-674 doi: 10.1007/s11684-023-1018-6

Abstract: Minimal residual disease (MRD) is termed as the small numbers of remnant tumor cells in a subset of patients

Keywords： MRD     solid tumor     CTC     ctDNA    

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Kinematic error separation on five-axis NC machine tool based on telescoping double ball bar

Min WANG, Jianzhong HU, Tao ZAN

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 4,   Pages 431-437 doi: 10.1007/s11465-010-0110-1

Abstract: algorithm of the homogeneous transformation matrix (HTM) method are applied in establishing the kinematic errorBased on this model, a new method for the kinematic error separation in five-axis numerical control (the value measured by telescoping double ball bar is substituted into the model to obtain kinematic error

Keywords： error modeling     error separation     telescoping double ball bar     five-axis numerical control (NC) machining    

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Robust ensemble of metamodels based on the hybrid error measure

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 3,   Pages 623-634 doi: 10.1007/s11465-021-0641-7

Abstract: The weight factor is adaptively determined according to the hybrid error metric, which combines globaland local error measures to improve the accuracy of the EMs.

Keywords： metamodel     ensemble of metamodels     hybrid error measure     stochastic problem    

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The formation mechanism and the influence factor of residual stress in machining

Zhaoxu QI,Bin LI,Liangshan XIONG

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 3,   Pages 265-269 doi: 10.1007/s11465-014-0311-0

Abstract:

Residual stresses generated in cutting process have important influences on workpiece performance.The paper presents a method of theoretical analysis in order to explicate the formation mechanism of residualaccumulated plastic strain is the main factor which determines the nature and the magnitude of surface residualOn the basis of the analytical model for residual stress, a series of simulations for residual stressAnd these influences are explained from the perspective of formation mechanism of residual stress in

Keywords： residual stress     analytical model     strain     plastic     cutting parameter    

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Experiment and optimal design of a collection device for a residual plastic film baler

Qi NIU,Xuegeng CHEN,Chao JI,Jie WU

Frontiers of Agricultural Science and Engineering 2015, Volume 2, Issue 4,   Pages 347-354 doi: 10.15302/J-FASE-2015077

Abstract: It is imperative to carry out research on residual plastic film collection technology to solve the seriousThe residual plastic film baler was designed as a package for film strip collection, cleaning and balingthis study to optimize the structure and working parameters for improving the collection efficiency of residualThe results show that the factors affecting the collection rate of residual film and the impurity offilm was 88.9% and the impurity of residual film package was 14.2% for the baler.

Keywords： residual film     collection device     collection rate of residual film     impurity of film package     optimization    

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Virtual-position Reading Method—a Novel Method for Error Motion and Form Error Separation

Hong Maisheng,Li Zijun,Su Heng,Ye Feifan

Strategic Study of CAE 2002, Volume 4, Issue 10,   Pages 48-51

Abstract: By means of this method, form error or error motion can be respectively separated according to practicalneeds, and the separating sequence of form error or error motion can also be optional.proposed method, it is not necessary to change the conventional measuring and separating system of form error

Keywords： virtual-position reading     signal re-organization     form error     error motion     error separation techniques    

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Improved analytical model for residual stress prediction in orthogonal cutting

Zhaoxu QI,Bin LI,Liangshan XIONG

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 3,   Pages 249-256 doi: 10.1007/s11465-014-0310-1

Abstract:

The analytical model of residual stress in orthogonal cutting proposed by Jiann is an important toolfor residual stress prediction in orthogonal cutting.In application of the model, a problem of low precision of the surface residual stress prediction isThese shortages may directly lead to the low precision of the surface residual stress prediction.At last, an experiment for measuring residual stress in cutting AISI 1045 steel is conducted.

Keywords： residual stress     analytical model     orthogonal cutting     cutting force     cutting temperature    

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Influence of welding residual stresses on the ductile crack growth resistance of circumferentially cracked

Xiaobo REN, Odd M. AKSELSEN, B?rd NYHUS, Zhiliang ZHANG

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 3,   Pages 217-223 doi: 10.1007/s11709-012-0169-3

Abstract: Welding residual stress is one of the main concerns for fabrication and operation of steel structuresThis paper focuses on the effect of welding residual stress on the ductile crack growth resistance ofResidual stresses were introduced into the model by using so-called eigenstrain method.Results show that residual stresses reduce the ductile crack growth resistance.The effect of residual stress has also been investigated for cases with different initial void volume

Keywords： residual stress     ductile crack growth resistance     complete Gurson model     eigenstrain method    

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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: two-dimensional elastoplastic rolling/sliding contact proposed by McDowell is an important tool for predicting residualalgorithm for McDowell’s model is proposed in order to improve its predicting accuracy of the surface residualThe simulation results show that the surface residual stress predicted by modified method is much closer

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

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Dependence of error sensitivity of frequency on bias voltage in force-balanced micro accelerometer

Lili CHEN, Wu ZHOU

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 2,   Pages 146-149 doi: 10.1007/s11465-013-0260-z

Abstract: of force-balanced micro accelerometer with different bias voltages, the effects of bias voltages on errorof accelerometer under closed loop control is derived according to its operation principle, and its errorthe relative errors between test data and theory data are less than 7%, and the fluctuating value of errorIt is concluded that the error sensitivity with designed parameters of structure, circuit and processerror can be used to predict the frequency of accelerometer with no need to consider the influence of

Keywords： Micro-Electro-Mechanical Systems (MEMS)     micro accelerometer     force-balanced micro accelerometer     frequency     error    

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Bayes estimation of residual life by fusing multisource information

Qian ZHAO, Xiang JIA, Zhi-jun CHENG, Bo GUO

Frontiers of Engineering Management 2018, Volume 5, Issue 4,   Pages 524-532 doi: 10.15302/J-FEM-2018034

Abstract:

Residual life estimation is essential for reliability engineering.Traditional methods may experience difficulties in estimating the residual life of products with highIn this study, a Bayes model is proposed to estimate the residual life of products by fusing expert knowledgeThe Markov chain Monte Carlo is applied to obtain samples of the parameters and to estimate the residualThe effectiveness and practicability of the proposed method are validated by comparing it with residual

Keywords： residual life estimation     Bayes model     linear Wiener process    

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A frequency error estimation for isogeometric analysis of Kirchhoff–Love cylindrical shells

Frontiers of Structural and Civil Engineering doi: 10.1007/s11709-023-0006-x

Abstract: A frequency error estimation is presented for the isogeometric free vibration analysis of Kirchhoff–Loveanalyzing the discrete isogeometric equations with the aid of harmonic wave assumption, the frequency errorcontinuum frequency for Kirchhoff–Love cylindrical shells is naturally embedded into the frequency error

Keywords： isogeometric analysis     Kirchhoff–Love cylindrical shell     free vibration     frequency error     convergence    

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Title Author Date Type Operation

Chord error constraint based integrated control strategy for contour error compensation

Tie ZHANG, Caicheng WU, Yanbiao ZOU

Journal Article

Effects of residual motion compensation errors on the performance of airborne along-track interferometric

Hui ZHANG,Jun HONG,Xiao-lan QIU,Ji-chuan LI,Fang-fang LI,Feng MING

Journal Article

Secondary transfer length and residual prestress of fractured strand in post-tensioned concrete beams

Lizhao DAI; Wengang XU; Lei WANG; Shanchang YI; Wen CHEN

Journal Article

Minimal residual disease in solid tumors: an overview

Journal Article

Kinematic error separation on five-axis NC machine tool based on telescoping double ball bar

Min WANG, Jianzhong HU, Tao ZAN

Journal Article

Robust ensemble of metamodels based on the hybrid error measure

Journal Article

The formation mechanism and the influence factor of residual stress in machining

Zhaoxu QI,Bin LI,Liangshan XIONG

Journal Article

Experiment and optimal design of a collection device for a residual plastic film baler

Qi NIU,Xuegeng CHEN,Chao JI,Jie WU

Journal Article

Virtual-position Reading Method—a Novel Method for Error Motion and Form Error Separation

Hong Maisheng,Li Zijun,Su Heng,Ye Feifan

Journal Article

Improved analytical model for residual stress prediction in orthogonal cutting

Zhaoxu QI,Bin LI,Liangshan XIONG

Journal Article

Influence of welding residual stresses on the ductile crack growth resistance of circumferentially cracked

Xiaobo REN, Odd M. AKSELSEN, B?rd NYHUS, Zhiliang ZHANG

Journal Article

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

Zhaoxu QI,Bin LI,Liangshan XIONG

Journal Article

Dependence of error sensitivity of frequency on bias voltage in force-balanced micro accelerometer

Lili CHEN, Wu ZHOU

Journal Article

Bayes estimation of residual life by fusing multisource information

Qian ZHAO, Xiang JIA, Zhi-jun CHENG, Bo GUO

Journal Article

A frequency error estimation for isogeometric analysis of Kirchhoff–Love cylindrical shells

Journal Article