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Finite element modeling of counter-roller spinning for large-sized aluminum alloy cylindrical parts

Dawei ZHANG, Fan LI, Shuaipeng LI, Shengdun ZHAO

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 3,   Pages 351-357 doi: 10.1007/s11465-019-0528-z

Abstract: Counter-roller spinning (CRS), where the mandrel is replaced by rollers, is an effective means of manufacturing large-sized, thin-walled, cylindrical parts with more than 2500 mm diameter.with distributed power was designed in this work for CRS with four pairs of rollers to manufacture a large-sized, thin-walled, cylindrical part with 6000 mm diameter.

Keywords： large-sized cylindrical part     counter-roller spinning     aluminum alloy     finite element method     distributed    

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An automated arc spray tooling system for rapid die-making of large-sized automobile body panels

HE Zhong-yun, LU Bing-heng, WANG Yi-qing, HONG Jun, TANG Yi-ping

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 2,   Pages 209-214 doi: 10.1007/s11465-006-0012-4

Abstract: A creative robot wrist consisting of link mechanisms and a novel robot motion control method based on the cross-sectional vector contours of an STL-formatted model was proposed. By using the wrist and the control method, an industrial robot with five degrees of freedom for rapid tooling using metal arc spraying and electric brush plating techniques was developed. The wrist of the robot including a specially designed link mechanism can maintain the position of the spraying point on the surface of the master pattern whatever the orientation of the gun. Therefore, the kinematic nonlinear coupling between the position mechanism and orientation mechanism in a traditional robot can be avoided. The only input of the control system is the STL-formatted 3D CAD model of the pattern. Without the need of any manual programming, the metal arc spraying and brush plating (if necessary) processes can be performed automatically and efficiently after receiving the 3D CAD data of the pattern. Using this robot system in new car development and trial production, the cost and lead-time can be reduced substantially as compared with the conventional tool making method.

Keywords： industrial     position mechanism     orientation     surface     cross-sectional    

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The Mathematical Model for Large-sized Agro-ecological Engineering

Bian Yousheng,Wang Tianxi,Chen Zhenglong,Cui Bin

Strategic Study of CAE 2002, Volume 4, Issue 7,   Pages 17-22

Abstract:

This paper has set up a mathematical model of economic development, which combines the linear program model and the input-output model, based on analyzing the systematic structure and program objectives in the farm of Shengli Oil Fields. It has achieved satisfactory results in eight years by means of the mathematical model to guide the economic production in the farm and proved that the established model is right.

Keywords： agro-ecological engineering     mathematical model     Shengli Oil Fields    

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Design of a piezoelectric transducer cylindrical phase modulator for simulating acoustic emission signals

HE Cunfu, HANG Lijun, WU Bin

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 3,   Pages 370-373 doi: 10.1007/s11465-007-0065-z

Abstract: signals are simulated by using the converse piezoelectric effect of a piezoelectric transducer (PZT) cylindricalpiezoelectric equations and electromechanical equivalence principle, the transfer function of a PZT cylindricalA PZT cylindrical phase modulator is designed, and the numerical simulation is conducted.Results prove that the PZT cylindrical phase modulator can effectively simulate leak acoustic emission

Keywords： KHz     numerical simulation     modulator     cylindrical     PZT    

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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: frequency error estimation is presented for the isogeometric free vibration analysis of Kirchhoff–Love cylindricalfrequency error measures are rationally derived for the quadratic and cubic formulations for Kirchhoff–Love cylindricalIn particular, the governing relationship of the continuum frequency for Kirchhoff–Love cylindrical shellsnumerical and theoretical frequency errors for the isogeometric free vibration analysis of Kirchhoff–Love cylindrical

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

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Investigation on a cylindrical ultrasonic micromotor

ZHU Hua, CHEN Chao, ZHAO Chunsheng

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 4,   Pages 394-398 doi: 10.1007/s11465-007-0068-9

Abstract: Therefore, a cylindrical ultrasonic micromotor with a novel stator is proposed.As this motor is suitable for miniaturization because of its simple structure, another cylindrical ultrasonic

Keywords： coefficient     bending     kHz     suitable     weight    

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Multifractal characteristics of cylindrical sludge drying

Weiyun WANG, Aimin LI,

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 4,   Pages 464-469 doi: 10.1007/s11783-009-0040-5

Abstract: The drying rates of cylindrical sludge with equal masses but different cross-sectional diameters was

Keywords： multifractal characteristic     multifractal singularity spectrum     sewage sludge drying    

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Time Series Diagnosing Analysis for the Fatigue Crack of Large-scale and Heavyburden Supporting Shafts

Li Xuejun,Bin Guangfu,Wang Yuqing

Strategic Study of CAE 2006, Volume 8, Issue 4,   Pages 50-53

Abstract:

Because of the unobserved sudden fatigue failure of the large-scale and heavyburden supporting shaftsmo>a2 and NRSS as the index to diagnose the fatigue crack of large-scale

Keywords： large-scale and heavyburden machine     supporting shaft     concealment part     fatigue crack     time series    

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Cylindrical particulate internal flows: A review

Lizhong HUANG, Xiang GAO, Jianzhong LIN

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 4,   Pages 385-393 doi: 10.1007/s11465-012-0354-z

Abstract:

The study of cylindrical particulate internal flows has wide industrial applicability hence receivedThis article reviews the cylindrical particulate internal flows over the past twenty years.The research is related to the cylindrical particulate flows in the straight channel, curved channel

Keywords： cylindrical particulate flow     internal flow    

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Should medium-sized contractors still implement home-made information technologies on construction sites

Conrad BOTON, Éric ST-PIERRE, Gabriel LEFEBVRE

Frontiers of Engineering Management 2020, Volume 7, Issue 1,   Pages 142-158 doi: 10.1007/s42524-019-0065-9

Abstract: Despite the increasing dissemination of the Building Information Modeling (BIM) approach, many firms are still far from BIM and are only starting to adopt information technologies. We conducted an ethnographic action research with an industrial partner that implements information technologies on its construction sites, with a strong preference for home-made applications. Results show that the development of such applications faces difficulties and that multiple iterations and versions are necessary before achieving the expected goals because the required competencies are lacking among internal development teams. Moreover, initial needs evolve considerably throughout the application’s development and evaluation process. However, notwithstanding the difficulties encountered during the different application development phases, the industrial partner believes the decision to be worthwhile because of the desire to have internal control over the project data and the need to consider certain specificities related to business processes.

Keywords： small- and medium-sized enterprises     mobile computing     mobile cloud computing     information technology for    

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Predication of discharge coefficient of cylindrical weir-gate using adaptive neuro fuzzy inference systems

Abbas PARSAIE,Amir Hamzeh HAGHIABI,Mojtaba SANEIE,Hasan TORABI

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 1,   Pages 111-122 doi: 10.1007/s11709-016-0354-x

Abstract: Proposing a circular shape for crest of weirs to improve their performance, investigators have proposed cylindricalshape to improve the performance of weir-gate structure and call it cylindrical weir-gate.

Keywords： weir-gate     soft computing     crest geometry     circular crest weir     cylindrical shape    

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Preparation and crystallization kinetics of micron-sized Mg(OH)

Xingfu SONG, Kefeng TONG, Shuying SUN, Ze SUN, Jianguo YU

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 2,   Pages 130-138 doi: 10.1007/s11705-013-1332-7

Abstract: In this paper, micron-sized magnesium hydroxide with high purity, large particle size and low water content

Keywords： magnesium hydroxide     precipitation     micron-sized     crystallization kinetics    

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Vibratory behaviors of Jeffcott system on cylindrical roller bearings

Hao WU, Jianwen WANG, Qi AN

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 3,   Pages 305-309 doi: 10.1007/s11465-009-0036-7

Abstract: A Jeffcott rotor system of cylindrical roller bearings is studied in detail.

Keywords： roller bearing     bearing-rotor system     design value     critical rotational speed    

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Torsional vibrations of a cylindrical foundation embedded in a saturated poroelastic half-space

Dazhi WU,Lu YU

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 2,   Pages 194-202 doi: 10.1007/s11709-015-0292-z

Abstract: Considering the interactions between an embedded foundation and saturated soil, the torsional vibrations of a cylindricalequilibrium equations of a foundation under harmonic torque, the torsional vibrations of an embedded cylindrical

Keywords： embedded foundation     saturated soil     rigid foundation     elastic foundation     torsional vibration    

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Residual stresses in coating-based systems, part I: Mechanisms and analytical modeling

ZHANG Xiancheng, WU Yixiong, XU Binshi, WANG Haidou

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 1,   Pages 1-12 doi: 10.1007/s11465-007-0001-2

Abstract: Thin films and multi-layered coatings comprised of different classes of materials are often used for various functional devices. The thermo-mechanical integrity of these systems is becoming a major concern and is strongly related to the residual stresses because of the fabrication processes. In this paper, the sources of the residual stresses in the coating-based systems and the concept of misfit strain were briefly reviewed. Analytical models were developed to predict the residual stresses in multi-layered film structures or coating-based systems using the force and moment balances. In addition, the residual stress distributions in the func tionally and compositionally graded coatings were also analyzed.

Keywords： briefly     different     thermo-mechanical integrity     addition     residual    

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Title Author Date Type Operation

Finite element modeling of counter-roller spinning for large-sized aluminum alloy cylindrical parts

Dawei ZHANG, Fan LI, Shuaipeng LI, Shengdun ZHAO

Journal Article

An automated arc spray tooling system for rapid die-making of large-sized automobile body panels

HE Zhong-yun, LU Bing-heng, WANG Yi-qing, HONG Jun, TANG Yi-ping

Journal Article

The Mathematical Model for Large-sized Agro-ecological Engineering

Bian Yousheng,Wang Tianxi,Chen Zhenglong,Cui Bin

Journal Article

Design of a piezoelectric transducer cylindrical phase modulator for simulating acoustic emission signals

HE Cunfu, HANG Lijun, WU Bin

Journal Article

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

Journal Article

Investigation on a cylindrical ultrasonic micromotor

ZHU Hua, CHEN Chao, ZHAO Chunsheng

Journal Article

Multifractal characteristics of cylindrical sludge drying

Weiyun WANG, Aimin LI,

Journal Article

Time Series Diagnosing Analysis for the Fatigue Crack of Large-scale and Heavyburden Supporting Shafts

Li Xuejun,Bin Guangfu,Wang Yuqing

Journal Article

Cylindrical particulate internal flows: A review

Lizhong HUANG, Xiang GAO, Jianzhong LIN

Journal Article

Should medium-sized contractors still implement home-made information technologies on construction sites

Conrad BOTON, Éric ST-PIERRE, Gabriel LEFEBVRE

Journal Article

Predication of discharge coefficient of cylindrical weir-gate using adaptive neuro fuzzy inference systems

Abbas PARSAIE,Amir Hamzeh HAGHIABI,Mojtaba SANEIE,Hasan TORABI

Journal Article

Preparation and crystallization kinetics of micron-sized Mg(OH)

Xingfu SONG, Kefeng TONG, Shuying SUN, Ze SUN, Jianguo YU

Journal Article

Vibratory behaviors of Jeffcott system on cylindrical roller bearings

Hao WU, Jianwen WANG, Qi AN

Journal Article

Torsional vibrations of a cylindrical foundation embedded in a saturated poroelastic half-space

Dazhi WU,Lu YU

Journal Article

Residual stresses in coating-based systems, part I: Mechanisms and analytical modeling

ZHANG Xiancheng, WU Yixiong, XU Binshi, WANG Haidou

Journal Article