Under the background of new engineering,the reform of the comprehensive practical course system for mechanical and electronic engineering majors actively responds to the challenges posed by the new round of technologi...Under the background of new engineering,the reform of the comprehensive practical course system for mechanical and electronic engineering majors actively responds to the challenges posed by the new round of technological revolution and industrial transformation to higher education,cultivating top-notch innovative intellectuals with comprehensive engineering qualities,meeting the requirements of being able to solve complex engineering problems rather than just cognitive capabilities,forming two core courses through reconstructing and reshaping the core courses of the major.The core courses include Drive,Measurement,and Control I and Drive,Measurement,and Control II,which highlight the comprehensive framework of mechanical and electronic engineering professional knowledge,continuing the comprehensive practical course system based on the unity of knowledge and practice,following the trend of new engineering,highlighting the practicality of professional innovation,assisting engineering education reform,and promoting high-quality development of new engineering professionals cultivation.展开更多
In recent years,China has made significant progress in the construction of highways,resulting in an improved highway network that has provided robust support for economic and social development.However,the rapid expan...In recent years,China has made significant progress in the construction of highways,resulting in an improved highway network that has provided robust support for economic and social development.However,the rapid expansion of highway construction,power supply,and distribution has led to several challenges in mechanical and electrical engineering technology.Ensuring the safe,stable,and cost-effective operation of the power supply and distribution system to meet the diverse requirements of highway operations has become a pressing issue.This article takes an example of a highway electromechanical engineering power supply and distribution construction project to provide insight into the construction process of highway electromechanical engineering power supply and distribution technology.展开更多
With the arrival of the intelligence era of Industry 4.0,social development has shown complex and diversified characteristics,gradually forming an innovation ecological environment constructed by vertical interaction ...With the arrival of the intelligence era of Industry 4.0,social development has shown complex and diversified characteristics,gradually forming an innovation ecological environment constructed by vertical interaction of multi-layer innovation systems and horizontal collaboration of multiple organizations and departments,which has posed extremely challenging requirements for higher engineering education to cultivate engineering talents with comprehensive engineering qualities who can solve complex engineering problems.However,practical engineering problems may involve a complex knowledge chain of interdisciplinary and multi-disciplinary cross-coupling.Therefore,higher engineering education needs to form a new interdisciplinary and multi-disciplinary integrated engineering innovation talent training system.Based on the characteristics of the mechanical and electronic engineering major,we will reshape and reconstruct the core courses of the mechanical and electronic engineering major.Two core courses are formed:Drive and Measurement and Control I and Drive and Measurement and Control II,with information flow and energy flow as the main lines,following up with the comprehensive practical curriculum system based on the unity of knowledge and practice and ability-oriented thinking,supporting teaching objectives,promoting students’individual development,and providing guidelines for relevant curriculum reforms.展开更多
Owning various crystal structures and high theoretical capacity,metal tellurides are emerging as promising electrode materials for high-performance metal-ion batteries(MBs).Since metal telluride-based MBs are quite ne...Owning various crystal structures and high theoretical capacity,metal tellurides are emerging as promising electrode materials for high-performance metal-ion batteries(MBs).Since metal telluride-based MBs are quite new,fundamental issues raise regarding the energy storage mechanism and other aspects affecting electrochemical performance.Severe volume expansion,low intrinsic conductivity and slow ion diffusion kinetics jeopardize the performance of metal tellurides,so that rational design and engineering are crucial to circumvent these disadvantages.Herein,this review provides an in-depth discussion of recent investigations and progresses of metal tellurides,beginning with a critical discussion on the energy storage mechanisms of metal tellurides in various MBs.In the following,recent design and engineering strategies of metal tellurides,including morphology engineering,compositing,defect engineering and heterostructure construction,for high-performance MBs are summarized.The primary focus is to present a comprehensive understanding of the structural evolution based on the mechanism and corresponding effects of dimension control,composition,electron configuration and structural complexity on the electrochemical performance.In closing,outlooks and prospects for future development of metal tellurides are proposed.This work also highlights the promising directions of design and engineering strategies of metal tellurides with high performance and low cost.展开更多
The emergence of mechanically one-way materials presents an exciting opportunity for materials science and engineering. These substances exhibit unique nonreciprocal mechanical responses, enabling them to selectively ...The emergence of mechanically one-way materials presents an exciting opportunity for materials science and engineering. These substances exhibit unique nonreciprocal mechanical responses, enabling them to selectively channel mechanical energy and facilitate directed sound propagation, controlled mass transport, and concentration of mechanical energy amidst random motion. This article explores the fundamentals of mechanically one-way materials, their potential applications across various industries, and the economic and environmental considerations related to their production and use.展开更多
Various industries today rely on the support of electromechanical equipment,expanding its scope of application and leading to an increase in electromechanical installation projects.However,due to the high level of exp...Various industries today rely on the support of electromechanical equipment,expanding its scope of application and leading to an increase in electromechanical installation projects.However,due to the high level of expertise required and the potential risks involved,it is crucial to emphasize safety management during construction.This paper delves into the significance of construction safety management for electromechanical installation projects,identifies common problems encountered during construction,and proposes solutions.This analysis aims to provide relevant personnel with essential guidance and references for managing electromechanical installation projects safely.展开更多
An automated method based on the curve chain was proposed for dimensioning of engineering drawings for the mechanical products.According to the internal relation between the features of 3D model feature and elements o...An automated method based on the curve chain was proposed for dimensioning of engineering drawings for the mechanical products.According to the internal relation between the features of 3D model feature and elements of 2D drawing,the curve chain was established to reflect the geometric topological structure between the elements.It divides the dimensions into the absolute dimensions within the cure chain and the relative dimensions between the curve chains.The parallel and lengthy relationship between the drawing elements of the constructed X and Y parallel matrix was solved to remove redundant elements in the curve chain and labeled the absolute dimensions of the remaining valid elements.The average minimum weight coefficient was introduced to judge the dependence on the relative dimensions between curve chains.Through the analysis of the overlap between the circular rectangular areas,including all the absolute dimensions of the curve chains,overlapping curve chains were merged,and their dimensions were rearranged to avoid the cross interference between them.The method was seamlessly integrated into the drafting module of product design software NX,and it developed an automated dimensioning system.The examples show that the system has excellent interactivity and robustness in the dimensioning of product engineering drawings.The dimension information is complete,accurate and reliable.展开更多
The optimization of the scaffolds to provide a suitable matrix and accelerate the regeneration process is vital for bone tissue engineering.However,poor mechanical and biological characteristics remain the primary cha...The optimization of the scaffolds to provide a suitable matrix and accelerate the regeneration process is vital for bone tissue engineering.However,poor mechanical and biological characteristics remain the primary challenges that must be addressed.For example,although bredigite(Br)has shown great potential for application in bone tissue engineering,it easily fails in replacement.In the present work,these challenges are addressed by reinforcing the Br matrix with nanosheets of graphene oxide(rGO)that have been reduced by bovine serum albumin(BSA)in order to enhance the mechanical properties and biological behavior.The reduction of graphene oxide by BSA improves the water stability of the nanosheets and provides an electrostatic interaction between theBSA-rGO nanosheets and theBr particles.The high thermal conductivity of theBSA-rGO nanosheets decreases the porosity of the Br by transferring heat to the core of the tablet.Furthermore,the addition of BSA-rGO nanosheets into the Br matrix enhances the adhesion of G-292 cells on the surface of the tablets.These findings suggest that the tablet consisting of BSA-rGO-reinforced Br has encouraging potential for application in bone tissue engineering.展开更多
Postnatal mesenchymal stem cells have the capacity to differentiate into multiple cell lineages. This study explored the possibility of dental pulp stem cells(DPSCs) for potential application in tendon tissue engineer...Postnatal mesenchymal stem cells have the capacity to differentiate into multiple cell lineages. This study explored the possibility of dental pulp stem cells(DPSCs) for potential application in tendon tissue engineering. The expression of tendonrelated markers such as scleraxis, tenascin-C, tenomodulin, eye absent homologue 2, collagens I and VI was detected in dental pulp tissue. Interestingly, under mechanical stimulation, these tendon-related markers were significantly enhanced when DPSCs were seeded in aligned polyglycolic acid(PGA) fibre scaffolds. Furthermore, mature tendon-like tissue was formed after transplantation of DPSC-PGA constructs under mechanical loading conditions in a mouse model. This study demonstrates that DPSCs could be a potential stem cell source for tissue engineering of tendon-like tissue.展开更多
Cells in vivo are in a three-dimensional(3D)complicated microenvironment composed of various biological,physical and chemical cues.Although it is well accepted that biological and chemical cues can significantly influ...Cells in vivo are in a three-dimensional(3D)complicated microenvironment composed of various biological,physical and chemical cues.Although it is well accepted that biological and chemical cues can significantly influence cell functions,more and more evidence has also shown that physical cues are also vital.Using today’s micro and nanoscale technologies,creating synthetic but native-like conditions are the prerequisites for understanding cell behaviors.Most research has been carried out on artificial two-dimensional(2D)substrates.However,recent studies showed that cells respond and behave differently in these 2D settings compared to in 3D intricate microenvironment.Therefore,innovative 3D in vitro cellular models with precisely patterned multiple types of cells are needed for re-creating distinct niches and in vitro cell modeling under well-defined and reproducible conditions.In this talk,I will present the 3D nano and microscale tissue engineering methods we are developing for engineering cell spatiotemporal mechanical microenvironment.展开更多
Vol.43,No.7,2007 NOVEL RECOATING PROCESS WITH DYNAMIC OPTIMIZED BLADE SPEED XU Guangshen ZHAO Wanhua LU Bingheng (1.Department of Mechanical Engineering, Xi'an Polytechnic University,Xi'an 710048,China; 2.Inst...Vol.43,No.7,2007 NOVEL RECOATING PROCESS WITH DYNAMIC OPTIMIZED BLADE SPEED XU Guangshen ZHAO Wanhua LU Bingheng (1.Department of Mechanical Engineering, Xi'an Polytechnic University,Xi'an 710048,China; 2.Institute of Advanced Manufacturing Technology, Xi'an Jiaotong University,Xi'an 710049,China) In order to improve the recoating quality of piston recoating system and resolve the problem that resin layer thickness increases with the height of object during building process in high-resolution stereolitho- graphy system,a novel recoating process whose blade speed is dynami- cally optimized during building process is proposed.Experiments are carried out to investigate the influence of blade speed and object height on the thickness of resin layer.The mathematical model describing the rela- tionship of recoating layer thickness with object height and blade speed展开更多
EMBEDDED-BASED NETWORK NUMERICAL CONTROL TECHNOLOGY AND SYSTEM ZHOU Zude LONG Yihong LIU Quan (Hubei Digital Manufacturing Key Laboratory, Wuhan University of Technology, Wuhan 430070, China) 1 Abstract:It is indicate...EMBEDDED-BASED NETWORK NUMERICAL CONTROL TECHNOLOGY AND SYSTEM ZHOU Zude LONG Yihong LIU Quan (Hubei Digital Manufacturing Key Laboratory, Wuhan University of Technology, Wuhan 430070, China) 1 Abstract:It is indicated that the general-purposed PC-based numerical control (NC) technology suffers from a number of problems, such as mis-match between system resources and application needs, unsuitability of the operating system to real-time control, lack of展开更多
Method of Conceptual Design of Mechanic Product Driven by Generalized Performance WEI Zhe TAN Jianrong FENG Yixiong (State Key Laboratory of CAD&CG,Zhejiang University, Hangzhou 310027,China) Generalized performan...Method of Conceptual Design of Mechanic Product Driven by Generalized Performance WEI Zhe TAN Jianrong FENG Yixiong (State Key Laboratory of CAD&CG,Zhejiang University, Hangzhou 310027,China) Generalized performance of product is used as an effective tool to drive the whole process of conceptual design of mechanical product. Generalized performance of product is defined by utilizing the deduction of axiom of"object structure"which is combined with"P-E"system.展开更多
Vol.44,No.3,2008 Investigation into Mechanism of Initial Rail Corrugation Formation at a Curved Track JIN Xuesong WEN Zefeng XIAO Xinbiao (Traction Power State Key Laboratory,Southwest Jiaotong University, Chengdu 610...Vol.44,No.3,2008 Investigation into Mechanism of Initial Rail Corrugation Formation at a Curved Track JIN Xuesong WEN Zefeng XIAO Xinbiao (Traction Power State Key Laboratory,Southwest Jiaotong University, Chengdu 610031,China) The mechanism of initial rail corrugation formation at a curved track is analyzed with a numerical method.The numerical method consid- ers a combination of a coupling dynamic model of a half railway vehicle and a finite length curved track, Kalker′s theory of three-dimensional elastic bodies in rolling contact,and a material wear model,The Hertzian contact non-linear spring with a unilateral restrain and the non-linear tan- gent creep-force model by SHEN-Elkins-Hydrick are used to couple the vehicle model with the track model.Through the detailed analysis on the dynamic behavior of the vehicle curving and the transient contact geome- try of the wheelset and track,the normal forces,the creepases,the contact point positions,and the contact geometry parameters of the wheels and the rails are obtained.According to the known numerical results the展开更多
Vol.44,No.1,2008 Dissimilar-dimension Interference Model of Fatigue Reliability Under Uncertain Cyclic Load XIE Liyang WANG Zheng (College of Mechanical Engineering & Automation, Northeastern University, Shenyang ...Vol.44,No.1,2008 Dissimilar-dimension Interference Model of Fatigue Reliability Under Uncertain Cyclic Load XIE Liyang WANG Zheng (College of Mechanical Engineering & Automation, Northeastern University, Shenyang 110004, China)展开更多
Vol.44,No.1,2008 Dissimilar-dimension Interference Model of Fatigue Reliability Under Uncertain Cyclic Load XIE Liyang WANG Zheng (College of Mechanical Engineering & Automation, Northeastern University, Shenyang ...Vol.44,No.1,2008 Dissimilar-dimension Interference Model of Fatigue Reliability Under Uncertain Cyclic Load XIE Liyang WANG Zheng (College of Mechanical Engineering & Automation, Northeastern University, Shenyang 110004, China)展开更多
文摘Under the background of new engineering,the reform of the comprehensive practical course system for mechanical and electronic engineering majors actively responds to the challenges posed by the new round of technological revolution and industrial transformation to higher education,cultivating top-notch innovative intellectuals with comprehensive engineering qualities,meeting the requirements of being able to solve complex engineering problems rather than just cognitive capabilities,forming two core courses through reconstructing and reshaping the core courses of the major.The core courses include Drive,Measurement,and Control I and Drive,Measurement,and Control II,which highlight the comprehensive framework of mechanical and electronic engineering professional knowledge,continuing the comprehensive practical course system based on the unity of knowledge and practice,following the trend of new engineering,highlighting the practicality of professional innovation,assisting engineering education reform,and promoting high-quality development of new engineering professionals cultivation.
文摘In recent years,China has made significant progress in the construction of highways,resulting in an improved highway network that has provided robust support for economic and social development.However,the rapid expansion of highway construction,power supply,and distribution has led to several challenges in mechanical and electrical engineering technology.Ensuring the safe,stable,and cost-effective operation of the power supply and distribution system to meet the diverse requirements of highway operations has become a pressing issue.This article takes an example of a highway electromechanical engineering power supply and distribution construction project to provide insight into the construction process of highway electromechanical engineering power supply and distribution technology.
文摘With the arrival of the intelligence era of Industry 4.0,social development has shown complex and diversified characteristics,gradually forming an innovation ecological environment constructed by vertical interaction of multi-layer innovation systems and horizontal collaboration of multiple organizations and departments,which has posed extremely challenging requirements for higher engineering education to cultivate engineering talents with comprehensive engineering qualities who can solve complex engineering problems.However,practical engineering problems may involve a complex knowledge chain of interdisciplinary and multi-disciplinary cross-coupling.Therefore,higher engineering education needs to form a new interdisciplinary and multi-disciplinary integrated engineering innovation talent training system.Based on the characteristics of the mechanical and electronic engineering major,we will reshape and reconstruct the core courses of the mechanical and electronic engineering major.Two core courses are formed:Drive and Measurement and Control I and Drive and Measurement and Control II,with information flow and energy flow as the main lines,following up with the comprehensive practical curriculum system based on the unity of knowledge and practice and ability-oriented thinking,supporting teaching objectives,promoting students’individual development,and providing guidelines for relevant curriculum reforms.
基金supported by the International Collaboration Program of Jilin Provincial Department of Science and Technology,China(20230402051GH)the National Natural Science Foundation of China(51932003,51902050)+2 种基金the Open Project Program of Key Laboratory of Preparation and Application of Environmental friendly Materials(Jilin Normal University)of Ministry of China(2021006)the Fundamental Research Funds for the Central Universities JLU“Double-First Class”Discipline for Materials Science&Engineering。
文摘Owning various crystal structures and high theoretical capacity,metal tellurides are emerging as promising electrode materials for high-performance metal-ion batteries(MBs).Since metal telluride-based MBs are quite new,fundamental issues raise regarding the energy storage mechanism and other aspects affecting electrochemical performance.Severe volume expansion,low intrinsic conductivity and slow ion diffusion kinetics jeopardize the performance of metal tellurides,so that rational design and engineering are crucial to circumvent these disadvantages.Herein,this review provides an in-depth discussion of recent investigations and progresses of metal tellurides,beginning with a critical discussion on the energy storage mechanisms of metal tellurides in various MBs.In the following,recent design and engineering strategies of metal tellurides,including morphology engineering,compositing,defect engineering and heterostructure construction,for high-performance MBs are summarized.The primary focus is to present a comprehensive understanding of the structural evolution based on the mechanism and corresponding effects of dimension control,composition,electron configuration and structural complexity on the electrochemical performance.In closing,outlooks and prospects for future development of metal tellurides are proposed.This work also highlights the promising directions of design and engineering strategies of metal tellurides with high performance and low cost.
文摘The emergence of mechanically one-way materials presents an exciting opportunity for materials science and engineering. These substances exhibit unique nonreciprocal mechanical responses, enabling them to selectively channel mechanical energy and facilitate directed sound propagation, controlled mass transport, and concentration of mechanical energy amidst random motion. This article explores the fundamentals of mechanically one-way materials, their potential applications across various industries, and the economic and environmental considerations related to their production and use.
文摘Various industries today rely on the support of electromechanical equipment,expanding its scope of application and leading to an increase in electromechanical installation projects.However,due to the high level of expertise required and the potential risks involved,it is crucial to emphasize safety management during construction.This paper delves into the significance of construction safety management for electromechanical installation projects,identifies common problems encountered during construction,and proposes solutions.This analysis aims to provide relevant personnel with essential guidance and references for managing electromechanical installation projects safely.
基金This work is supported by the Science and Technology Planning Project of Ronggui(grant number RGJF(2017)27H-8).
文摘An automated method based on the curve chain was proposed for dimensioning of engineering drawings for the mechanical products.According to the internal relation between the features of 3D model feature and elements of 2D drawing,the curve chain was established to reflect the geometric topological structure between the elements.It divides the dimensions into the absolute dimensions within the cure chain and the relative dimensions between the curve chains.The parallel and lengthy relationship between the drawing elements of the constructed X and Y parallel matrix was solved to remove redundant elements in the curve chain and labeled the absolute dimensions of the remaining valid elements.The average minimum weight coefficient was introduced to judge the dependence on the relative dimensions between curve chains.Through the analysis of the overlap between the circular rectangular areas,including all the absolute dimensions of the curve chains,overlapping curve chains were merged,and their dimensions were rearranged to avoid the cross interference between them.The method was seamlessly integrated into the drafting module of product design software NX,and it developed an automated dimensioning system.The examples show that the system has excellent interactivity and robustness in the dimensioning of product engineering drawings.The dimension information is complete,accurate and reliable.
基金Thiswork is financially supported by IranUniversity of Science and Technology(IUST)and Motamed Cancer Institute(ACECR).
文摘The optimization of the scaffolds to provide a suitable matrix and accelerate the regeneration process is vital for bone tissue engineering.However,poor mechanical and biological characteristics remain the primary challenges that must be addressed.For example,although bredigite(Br)has shown great potential for application in bone tissue engineering,it easily fails in replacement.In the present work,these challenges are addressed by reinforcing the Br matrix with nanosheets of graphene oxide(rGO)that have been reduced by bovine serum albumin(BSA)in order to enhance the mechanical properties and biological behavior.The reduction of graphene oxide by BSA improves the water stability of the nanosheets and provides an electrostatic interaction between theBSA-rGO nanosheets and theBr particles.The high thermal conductivity of theBSA-rGO nanosheets decreases the porosity of the Br by transferring heat to the core of the tablet.Furthermore,the addition of BSA-rGO nanosheets into the Br matrix enhances the adhesion of G-292 cells on the surface of the tablets.These findings suggest that the tablet consisting of BSA-rGO-reinforced Br has encouraging potential for application in bone tissue engineering.
基金supported by the Natural Science Foundation of China (81171470 and 81100761)the key clinical specialty discipline construction programme of Fujian, Chinathe Key Project of Science and Technology Bureau of Jiangsu Province (BL2013002)
文摘Postnatal mesenchymal stem cells have the capacity to differentiate into multiple cell lineages. This study explored the possibility of dental pulp stem cells(DPSCs) for potential application in tendon tissue engineering. The expression of tendonrelated markers such as scleraxis, tenascin-C, tenomodulin, eye absent homologue 2, collagens I and VI was detected in dental pulp tissue. Interestingly, under mechanical stimulation, these tendon-related markers were significantly enhanced when DPSCs were seeded in aligned polyglycolic acid(PGA) fibre scaffolds. Furthermore, mature tendon-like tissue was formed after transplantation of DPSC-PGA constructs under mechanical loading conditions in a mouse model. This study demonstrates that DPSCs could be a potential stem cell source for tissue engineering of tendon-like tissue.
文摘Cells in vivo are in a three-dimensional(3D)complicated microenvironment composed of various biological,physical and chemical cues.Although it is well accepted that biological and chemical cues can significantly influence cell functions,more and more evidence has also shown that physical cues are also vital.Using today’s micro and nanoscale technologies,creating synthetic but native-like conditions are the prerequisites for understanding cell behaviors.Most research has been carried out on artificial two-dimensional(2D)substrates.However,recent studies showed that cells respond and behave differently in these 2D settings compared to in 3D intricate microenvironment.Therefore,innovative 3D in vitro cellular models with precisely patterned multiple types of cells are needed for re-creating distinct niches and in vitro cell modeling under well-defined and reproducible conditions.In this talk,I will present the 3D nano and microscale tissue engineering methods we are developing for engineering cell spatiotemporal mechanical microenvironment.
文摘Vol.43,No.7,2007 NOVEL RECOATING PROCESS WITH DYNAMIC OPTIMIZED BLADE SPEED XU Guangshen ZHAO Wanhua LU Bingheng (1.Department of Mechanical Engineering, Xi'an Polytechnic University,Xi'an 710048,China; 2.Institute of Advanced Manufacturing Technology, Xi'an Jiaotong University,Xi'an 710049,China) In order to improve the recoating quality of piston recoating system and resolve the problem that resin layer thickness increases with the height of object during building process in high-resolution stereolitho- graphy system,a novel recoating process whose blade speed is dynami- cally optimized during building process is proposed.Experiments are carried out to investigate the influence of blade speed and object height on the thickness of resin layer.The mathematical model describing the rela- tionship of recoating layer thickness with object height and blade speed
文摘EMBEDDED-BASED NETWORK NUMERICAL CONTROL TECHNOLOGY AND SYSTEM ZHOU Zude LONG Yihong LIU Quan (Hubei Digital Manufacturing Key Laboratory, Wuhan University of Technology, Wuhan 430070, China) 1 Abstract:It is indicated that the general-purposed PC-based numerical control (NC) technology suffers from a number of problems, such as mis-match between system resources and application needs, unsuitability of the operating system to real-time control, lack of
文摘Method of Conceptual Design of Mechanic Product Driven by Generalized Performance WEI Zhe TAN Jianrong FENG Yixiong (State Key Laboratory of CAD&CG,Zhejiang University, Hangzhou 310027,China) Generalized performance of product is used as an effective tool to drive the whole process of conceptual design of mechanical product. Generalized performance of product is defined by utilizing the deduction of axiom of"object structure"which is combined with"P-E"system.
文摘Vol.44,No.3,2008 Investigation into Mechanism of Initial Rail Corrugation Formation at a Curved Track JIN Xuesong WEN Zefeng XIAO Xinbiao (Traction Power State Key Laboratory,Southwest Jiaotong University, Chengdu 610031,China) The mechanism of initial rail corrugation formation at a curved track is analyzed with a numerical method.The numerical method consid- ers a combination of a coupling dynamic model of a half railway vehicle and a finite length curved track, Kalker′s theory of three-dimensional elastic bodies in rolling contact,and a material wear model,The Hertzian contact non-linear spring with a unilateral restrain and the non-linear tan- gent creep-force model by SHEN-Elkins-Hydrick are used to couple the vehicle model with the track model.Through the detailed analysis on the dynamic behavior of the vehicle curving and the transient contact geome- try of the wheelset and track,the normal forces,the creepases,the contact point positions,and the contact geometry parameters of the wheels and the rails are obtained.According to the known numerical results the
