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Modelling of dynamic contact length in rail grinding process
Shaodan ZHI,Jianyong LI,A. M. ZAREMBSKI
Frontiers of Mechanical Engineering 2014, Volume 9, Issue 3, Pages 242-248 doi: 10.1007/s11465-014-0305-y
Rails endure frequent dynamic loads from the passing trains for supporting trains and guiding wheels. The accumulated stress concentrations will cause the plastic deformation of rail towards generating corrugations, contact fatigue cracks and also other defects, resulting in more dangerous status even the derailment risks. So the rail grinding technology has been invented with rotating grinding stones pressed on the rail with defects removal. Such rail grinding works are directed by experiences rather than scientifically guidance, lacking of flexible and scientific operating methods. With grinding control unit holding the grinding stones, the rail grinding process has the characteristics not only the surface grinding but also the running railway vehicles. First of all, it’s important to analyze the contact length between the grinding stone and the rail, because the contact length is a critical parameter to measure the grinding capabilities of stones. Moreover, it’s needed to build up models of railway vehicle unit bonded with the grinding stone to represent the rail grinding car. Therefore the theoretical model for contact length is developed based on the geometrical analysis. And the calculating models are improved considering the grinding car’s dynamic behaviors during the grinding process. Eventually, results are obtained based on the models by taking both the operation parameters and the structure parameters into the calculation, which are suitable for revealing the process of rail grinding by combining the grinding mechanism and the railway vehicle systems.
Keywords: rail grinding contact length dynamic model Hamiltonian system grinding stone rail grinding car
A New Sufficient Conditions and Hamiltonian graphs
Zhao Kewen
Strategic Study of CAE 2003, Volume 5, Issue 11, Pages 61-64
Keywords: Hamiltonian graph neighborhood union conditions minimum degree independence number
A review on different theoretical models of electrocaloric effect for refrigeration
Frontiers in Energy 2023, Volume 17, Issue 4, Pages 478-503 doi: 10.1007/s11708-023-0884-6
Keywords: electrocaloric effect effective Hamiltonian phase-field modeling different theoretical models
System reliability and system resilience
Frontiers of Engineering Management 2021, Volume 8, Issue 4, Pages 615-619 doi: 10.1007/s42524-021-0176-y
Engineering, Engineering System, Engineering System Theory, and System of Engineering Science
Wang Liancheng
Strategic Study of CAE 2001, Volume 3, Issue 6, Pages 15-18
Keywords: engineering system system theory discipline
Frontiers of Engineering Management 2021, Volume 8, Issue 4, Pages 503-518 doi: 10.1007/s42524-021-0163-3
Keywords: Cyber–Physical Power System resilience assessment resilience optimization cascading failure modeling
Discussion on the System Optimization of the Energy Development Strategy and Plan
Da-di Zhou
Frontiers of Engineering Management 2014, Volume 1, Issue 2, Pages 147-152 doi: 10.15302/J-FEM-2014022
Keywords: energy development strategy planning system system optimization
Distributed monitoring and diagnosis system for hydraulic system of construction machinery
Xiaohu CHEN, Wenfeng WU, Hangong WANG, Yongtao ZHOU,
Frontiers of Mechanical Engineering 2010, Volume 5, Issue 1, Pages 106-110 doi: 10.1007/s11465-009-0089-7
Keywords: construction machinery hydraulic system distributed condition monitoring controller area net (CAN) field
Theory and method of mechanism system design
Huijun ZOU, Qinghua LIANG, Qing ZHANG
Frontiers of Mechanical Engineering 2010, Volume 5, Issue 4, Pages 399-411 doi: 10.1007/s11465-010-0116-8
Keywords: mechanism system creative design process model function solving model process action procedure mechanismsknowledge base principle of mechanism system composition
Dynamic contribution of variable-speed wind energy conversion system in system frequency regulation
Yajvender Pal VERMA, Ashwani KUMAR
Frontiers in Energy 2012, Volume 6, Issue 2, Pages 184-192 doi: 10.1007/s11708-012-0185-y
Keywords: doubly fed induction generator (DFIG) load frequency control inertial control wind energy conversion system
Yajvender Pal VERMA, Ashwani KUMAR
Frontiers in Energy 2013, Volume 7, Issue 2, Pages 245-254 doi: 10.1007/s11708-012-0218-6
Keywords: frequency regulation fuzzy controller de-regulated power system doubly fed induction generator (DFIG)
Qian Xuesen and System Engineering
Miao Dongsheng
Strategic Study of CAE 2002, Volume 4, Issue 3, Pages 16-20
This paper have looked back the formation of Qian Xuesen's system engineering idea, given a briefaccount of the main points of the system engineering theory with Chinese characteristics, and analysedhow Qian went beyond system engineering.
Keywords: Qian Xuesen system idea system engineering system science
China’s hydropower energy system toward carbon neutrality
Frontiers of Engineering Management Pages 677-682 doi: 10.1007/s42524-022-0196-2
Keywords: hydropower system carbon neutrality artificial intelligence
Co-design and Co-simulation on the System Level
Xu Hui,Wang Zuqiang,Wang Zhaojun
Strategic Study of CAE 2006, Volume 8, Issue 4, Pages 86-88
The article introduces the technology of co-design and co-simulation on the system level and the systemsimulation tool-Cocentric system studio.
Keywords: system on a chip software/hardware co-simulate system C CCSS (CoCentric system studio)
Steam turbine governor modeling and parameters testing for power system simulation
Ying LI, Chufeng PENG, Zenghui YANG
Frontiers in Energy 2009, Volume 3, Issue 2, Pages 198-203 doi: 10.1007/s11708-009-0004-2
Keywords: power system simulation ST governor system modeling parameters testing
Title Author Date Type Operation
Modelling of dynamic contact length in rail grinding process
Shaodan ZHI,Jianyong LI,A. M. ZAREMBSKI
Journal Article
Engineering, Engineering System, Engineering System Theory, and System of Engineering Science
Wang Liancheng
Journal Article
Cyber–Physical Power System (CPPS): A review on measures and optimization methods of system resilience
Journal Article
Discussion on the System Optimization of the Energy Development Strategy and Plan
Da-di Zhou
Journal Article
Distributed monitoring and diagnosis system for hydraulic system of construction machinery
Xiaohu CHEN, Wenfeng WU, Hangong WANG, Yongtao ZHOU,
Journal Article
Dynamic contribution of variable-speed wind energy conversion system in system frequency regulation
Yajvender Pal VERMA, Ashwani KUMAR
Journal Article
Load frequency control in deregulated power system with wind integrated system using fuzzy controller
Yajvender Pal VERMA, Ashwani KUMAR
Journal Article