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A combination of damage locating vector method (DLV) and differential evolution algorithm (DE) for structural damage assessment

T. NGUYEN-THOI, A. TRAN-VIET, N. NGUYEN-MINH, T. VO-DUY, V. HO-HUU

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 1,   Pages 92-108 doi: 10.1007/s11709-016-0379-1

Abstract: In addition, in the second stage, a modification of an available objective function is made for handing

Keywords： vector method (DLV)     differential evolution (DE)     multiple damage location assurance criterion (MDLAC)     modeshape error function    

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The error adjusting method of lineshape control for the middle steel tower of Taizhou Bridge

Zhang Xiangqun,Wang Lin and You Xinpeng

Strategic Study of CAE 2012, Volume 14, Issue 5,   Pages 29-32

Abstract: text-align: justify;">The middle tower of Taizhou Bridge is a steel frame with longitudinal herringbone shapeand lateral gate shape, which is used for the first time.Based on precise monitoring and control to the shape of the segments and the line-shape of the towerfabrication stage, the adjustment of the adjusting gap of the tower is calculated according to the actual errorof the tower at the erection stage, and the line-shape error of the tower is adjusted.

Keywords： Taizhou Bridge     middle steel tower     line shape control     error adjusting    

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A novel shape memory alloy actuated soft gripper imitated hand behavior

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 4, doi: 10.1007/s11465-022-0700-8

Abstract: The limited length shrinkage of shape memory alloy (SMA) wire seriously limits the motion range of SMA-basedwithout silicone gel was designed based on pre bent SMA wire, and the finger was back to its original shape

Keywords： shape memory alloy (SMA)     pre bent     wire     gripper     grasping mode     lightweight    

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Exponential polynomial uniform splines model

Zhao Yanli,Ping Ping,Liu Fengyu

Strategic Study of CAE 2008, Volume 10, Issue 7,   Pages 147-152

Abstract: given.Most of its properties similar to those of the B - spline model, and also it has an adjustable shapecurves which are constructed by the exponential polynomial uniform splines can adjust the curve's shape

Keywords： exponential polynomial uniform spline function     uniform B - spline function     shape parameter    

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Sectional model test study on vortex-excited resonance of vehicle-bridge system of Shanghai Bridge over Yangtse River

Li ZHOU, Yaojun GE

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 1,   Pages 67-72 doi: 10.1007/s11709-009-0007-4

Abstract: resonant amplitudes of the sectional model and that of the prototype bridge were also established by modeshape correction.It is obvious that vehicles bring about changes in the aerodynamic shape of the main girder.vehicles on vortex-excited resonance performance of vehicle-bridge systems, in terms of both amplitude and mode

Keywords： vehicle-bridge system     sectional mode     vortex-excited resonance     wind tunnel test     mode shape correction    

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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 the

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

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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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Performance Analysis and Evaluation of Geometric Parameters in Stereo Deflectometry Article

Yongjia Xu, Feng Gao, Xiangqian Jiang

Engineering 2018, Volume 4, Issue 6,   Pages 806-815 doi: 10.1016/j.eng.2018.10.007

Abstract:

This paper presents a novel geometric parameters analysis to improve the measurement accuracy of stereo deflectometry. Stereo deflectometry can be used to obtain form information for freeform specular surfaces. A measurement system based on stereo deflectometry typically consists of a fringe-displaying screen, a main camera, and a reference camera. The arrangement of the components of a stereo deflectometry system is important for achieving high-accuracy measurements. In this paper, four geometric parameters of a stereo deflectometry system are analyzed and evaluated: the distance between the main camera and the measured object surface, the angle between the main camera ray and the surface normal, the distance between the fringe-displaying screen and the object, and the angle between the main camera and the reference camera. The influence of the geometric parameters on the measurement accuracy is evaluated. Experiments are performed using simulated and experimental data. The experimental results confirm the impact of these parameters on the measurement accuracy. A measurement system based on the proposed analysis has been set up to measure a stock concave mirror. Through a comparison of the given surface parameters of the concave mirror, a global measurement accuracy of 154.2 nm was achieved.

Keywords： Optical metrology     Error analysis     Stereo deflectometry     Three-dimensional shape measurement     Performance    

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Calculation and research on deepwater drilling riser flexural equation and natural frequency

Jiang Wei

Strategic Study of CAE 2011, Volume 13, Issue 5,   Pages 66-73

Abstract:

Flexural equation was established in this paper, which was based on application of deepwater drilling riser and Ritz methods in elastoplastic mechanics. Axial tension, inclination angle, lateral gravity components and axial gravity components were considered. Therefore, simple calculation method for natural frequency of drilling riser was achieved. Free-hinged beam was taken as constraint condition of flexural equation combined with drilling string real conditions, which made research approach practical work more. Purpose of research was to provide reasonable design and selection for deepwater drilling riser, and provide a more efficient and applied method, which would show guiding significance for deepwater drilling operation.

Keywords： deepwater drilling     drilling riser     flexural equation     natural frequency     shape function    

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An extended thermo-mechanically coupled algorithm for simulation of superelasticity and shape memoryeffect in shape memory alloys

S. HASHEMI,H. AHMADIAN,S. MOHAMMADI

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 4,   Pages 466-477 doi: 10.1007/s11709-015-0300-3

Abstract: Thermo-mechanical coupling in shape memory alloys is a very complicated phenomenon.lead to temperature-dependent variation of its mechanical behavior in the forms of superelasticity and shapealgorithm is proposed based on the original model of Lagoudas to efficiently model both superelasticity and shape

Keywords： shape memory alloy     thermo-mechanical coupling     superplasticity     shape memory effect    

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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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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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Seismic responses and resilience of novel SMA-based self-centring eccentrically braced frames under near-fault ground motions

Zhi-Peng CHEN; Songye ZHU

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 8,   Pages 962-975 doi: 10.1007/s11709-022-0873-6

Abstract: In this paper, the seismic responses and resilience of a novel K-type superelastic shape memory alloy

Keywords： shape memory alloy     eccentrically braced frame     self-centring     fragility     loss function     resilience    

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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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Title Author Date Type Operation

A combination of damage locating vector method (DLV) and differential evolution algorithm (DE) for structural damage assessment

T. NGUYEN-THOI, A. TRAN-VIET, N. NGUYEN-MINH, T. VO-DUY, V. HO-HUU

Journal Article

The error adjusting method of lineshape control for the middle steel tower of Taizhou Bridge

Zhang Xiangqun,Wang Lin and You Xinpeng

Journal Article

A novel shape memory alloy actuated soft gripper imitated hand behavior

Journal Article

Exponential polynomial uniform splines model

Zhao Yanli,Ping Ping,Liu Fengyu

Journal Article

Sectional model test study on vortex-excited resonance of vehicle-bridge system of Shanghai Bridge over Yangtse River

Li ZHOU, Yaojun GE

Journal Article

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

Journal Article

Chord error constraint based integrated control strategy for contour error compensation

Tie ZHANG, Caicheng WU, Yanbiao ZOU

Journal Article

Performance Analysis and Evaluation of Geometric Parameters in Stereo Deflectometry

Yongjia Xu, Feng Gao, Xiangqian Jiang

Journal Article

Calculation and research on deepwater drilling riser flexural equation and natural frequency

Jiang Wei

Journal Article

An extended thermo-mechanically coupled algorithm for simulation of superelasticity and shape memoryeffect in shape memory alloys

S. HASHEMI,H. AHMADIAN,S. MOHAMMADI

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

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

Hong Maisheng,Li Zijun,Su Heng,Ye Feifan

Journal Article

Seismic responses and resilience of novel SMA-based self-centring eccentrically braced frames under near-fault ground motions

Zhi-Peng CHEN; Songye ZHU

Journal Article

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

Lili CHEN, Wu ZHOU

Journal Article