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Research of 1 770 MPa galvanized steel wire for stay cable of domestic bridges

Ding Feng,Sang Chunming,Zhou Daiyi,Bai Bingdong

Strategic Study of CAE 2009, Volume 11, Issue 3,   Pages 57-64

Abstract: The three key technologies based on the research are: "Double tension + limiter die" process

Keywords： galvanized steel wire     torsion     double tension     limiter die     gravel wiping    

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Interfacial heat transfer coefficient between metal and die during high pressure die casting process

GUO Zhipeng, XIONG Shoumei, CHO SangHyun, CHOI JeongKil

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 3,   Pages 283-287 doi: 10.1007/s11465-007-0049-z

Abstract: focused on the determination of the interfacial heat transfer coefficient (IHTC) between metal and dieduring the high pressure die casting (HPDC) process.Casting thickness played an important role in affecting the IHTC between the metal and die not only intendencies of the metal solid fraction were found between castings with different thicknesses and the die

Keywords： so-called     calculation     inverse     interfacial     aluminum    

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An energy consumption prediction approach of die casting machines driven by product parameters

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 4,   Pages 868-886 doi: 10.1007/s11465-021-0656-0

Abstract: Die casting machines, which are the core equipment of the machinery manufacturing industry, consume greatThe energy consumption prediction of die casting machines can support energy consumption quota, processNevertheless, due to the uncertainty and complexity of the energy consumption in die casting machinesConsequently, a systematic energy consumption prediction approach for die casting machines, involvingproduct, die, equipment, and process parameters, is proposed.

Keywords： die casting machine     energy consumption prediction     product parameters    

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Ultrasonic measurement of tie-bar stress for die-casting machine

Frontiers of Mechanical Engineering doi: 10.1007/s11465-021-0663-1

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Establishment of the Comprehensive Evaluation System of Cold Stamping Die Quality

LU Xiao-chun, GUO Sheng, RUAN Feng

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 1,   Pages 80-84 doi: 10.1007/s11465-005-0021-8

Abstract:

A comprehensive evaluation system of die quality, a multiplayer hierarchical amendment index systemaccording to the characteristics of cold stamping die production, an evaluation standard referring toThe applications show that the system can be used to evaluate the die quality objectively, fairly, and

Keywords： scientific evaluation     stamping     multiplayer hierarchical     technique     evaluation standard    

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Determining casting defects in near-net shape casting aluminum parts by computed tomography

Jiehua LI, Bernd OBERDORFER, Daniel HABE, Peter SCHUMACHER

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 1,   Pages 48-52 doi: 10.1007/s11465-018-0493-y

Abstract: The first, second, and third parts were produced by low-pressure die casting (Al-12Si-0.8Cu-0.5Fe-0.9Mg-0.7Ni-0.2Zn alloy), die casting (A356, Al-7Si-0.3Mg), and semi-solid casting (A356, Al-7Si-0.3Mg), respectivelyUnlike die casting (second part), low-pressure die casting (first part) significantly reduced the formation

Keywords： near-net shape casting     aluminum parts     casting defects     low pressure die casting     die casting     semi-solid    

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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: This paper introduces a novel bridge type solid state current limiter and a new control strategy is proposedThe characters and operating principle of a novel bridge solid-state current limiter has been developed

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

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Multiobjective image recognition algorithm in the fully automatic die bonder

JIANG Kai, CHEN Hai-xia, YUAN Sen-miao

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 3,   Pages 313-316 doi: 10.1007/s11465-006-0026-y

Abstract: It is a very important task to automatically fix the number of die in the image recognition system ofa fully automatic die bonder.

Keywords： clustering     different     recognition algorithm     Algorithm     multiobjective    

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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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Adaptive simulation of wave propagation problems including dislocation sources and random media

Hassan YOUSEFI, Jamshid FARJOODI, Iradj MAHMOUDZADEH KANI

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 5,   Pages 1054-1081 doi: 10.1007/s11709-019-0536-4

Abstract: This identification is performed in this study by the MINMOD limiter based algorithm.

Keywords： smoothing     discontinuous solutions     stochastic media     spurious oscillations     Tikhonov regularization     minmod limiter    

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Precision forging technology for aluminum alloy

Lei DENG, Xinyun WANG, Junsong JIN, Juchen XIA

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 1,   Pages 25-36 doi: 10.1007/s11465-018-0477-y

Abstract: Several advanced precision forging technologies have been developed, including closed die forging, isothermaldie forging, local loading forging, metal flow forging with relief cavity, auxiliary force or vibration

Keywords： precision forging     aluminum alloy     closed die forging     flow control forging     hybrid-forming technology    

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Improving buckling critical stress of sheet with the elasti cpressure on the surfaces of sheet and it ’ s application

Song Aiping,Wang Longtai,Li Jizhong,Wang Shufeng

Strategic Study of CAE 2009, Volume 11, Issue 2,   Pages 53-59

Abstract: Based on the result, a novel stamping die was developed.The die can be reconfigured quickly and can suppress the wrinkling of sheet.

Keywords： wrinkling     critical stress     die     stamping process    

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New method to determine optimum impedance of fault current limiters for symmetrical and/or asymmetrical faults in power systems None

Mahmoud MODARESI, Hamid LESANI

Frontiers of Information Technology & Electronic Engineering 2018, Volume 19, Issue 2,   Pages 297-307 doi: 10.1631/FITEE.1601689

Abstract: To select the type and value of the impedance of fault current limiters (FCLs) for power network designers, we introduce a new method to calculate the optimum value of FCL impedance depending on its position in the network. Due to the complexity of its impedance, the costs of both real and imaginary parts of FCL impedance are considered. The optimization of FCL impedance is based on a goal function that maximizes the reduction of the fault current while minimizing the costs. While the position of FCL in the network has an effect on the calculation of the optimum impedance value, the method for selecting FCL location is not the focus of this study. The proposed method for optimizing FCL impedance can be used for every network that has symmetrical and/or asymmetrical faults. We use a 14-bus IEEE network as an example to explain the process. The optimum FCL impedance used in this network is calculated by considering the vast range of costs for both real and imaginary parts of FCL impedance.

Keywords： Fault current limiter (FCL)     FCL impedance     Short circuit current     Fault current     Power system    

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Series transformer based diode-bridge-type solid state fault current limiter

Amir HEIDARY,Hamid RADMANESH,Seyed Hamid FATHI,G. B. GHAREHPETIAN

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 9,   Pages 769-784 doi: 10.1631/FITEE.1400428

Abstract: We propose a novel series transformer based diode-bridge-type solid state fault current limiter (SSFCL

Keywords： Solid state fault current limiter (SSFCL)     Power quality     Voltage sag     Point of common coupling (PCC)    

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Review of small aspheric glass lens molding technologies

Shaohui YIN,Hongpeng JIA,Guanhua ZHANG,Fengjun CHEN,Kejun ZHU

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 1,   Pages 66-76 doi: 10.1007/s11465-017-0417-2

Abstract: lens are greatly affected by various key technologies for glass lens molding, including glass and mold-diematerial forming, mold-die machining, and lens molding.

Keywords： aspheric glass lens     mold-die manufacturing     lens molding     molding process simulation    

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Title Author Date Type Operation

Research of 1 770 MPa galvanized steel wire for stay cable of domestic bridges

Ding Feng,Sang Chunming,Zhou Daiyi,Bai Bingdong

Journal Article

Interfacial heat transfer coefficient between metal and die during high pressure die casting process

GUO Zhipeng, XIONG Shoumei, CHO SangHyun, CHOI JeongKil

Journal Article

An energy consumption prediction approach of die casting machines driven by product parameters

Journal Article

Ultrasonic measurement of tie-bar stress for die-casting machine

Journal Article

Establishment of the Comprehensive Evaluation System of Cold Stamping Die Quality

LU Xiao-chun, GUO Sheng, RUAN Feng

Journal Article

Determining casting defects in near-net shape casting aluminum parts by computed tomography

Jiehua LI, Bernd OBERDORFER, Daniel HABE, Peter SCHUMACHER

Journal Article

Research of an Improved Bridge Type Solid-state Current Limiter

Li Hongfeng,Jia Guixi,Qi Wei,Xu Wei

Journal Article

Multiobjective image recognition algorithm in the fully automatic die bonder

JIANG Kai, CHEN Hai-xia, YUAN Sen-miao

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

Adaptive simulation of wave propagation problems including dislocation sources and random media

Hassan YOUSEFI, Jamshid FARJOODI, Iradj MAHMOUDZADEH KANI

Journal Article

Precision forging technology for aluminum alloy

Lei DENG, Xinyun WANG, Junsong JIN, Juchen XIA

Journal Article

Improving buckling critical stress of sheet with the elasti cpressure on the surfaces of sheet and it ’ s application

Song Aiping,Wang Longtai,Li Jizhong,Wang Shufeng

Journal Article

New method to determine optimum impedance of fault current limiters for symmetrical and/or asymmetrical faults in power systems

Mahmoud MODARESI, Hamid LESANI

Journal Article

Series transformer based diode-bridge-type solid state fault current limiter

Amir HEIDARY,Hamid RADMANESH,Seyed Hamid FATHI,G. B. GHAREHPETIAN

Journal Article

Review of small aspheric glass lens molding technologies

Shaohui YIN,Hongpeng JIA,Guanhua ZHANG,Fengjun CHEN,Kejun ZHU

Journal Article