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Development of research on aerodynamics of high-speed rails in China

Tian Hongqi

Strategic Study of CAE 2015, Volume 17, Issue 4, Pages 30-29

Abstract: on aerodynamics of high-speed rails in China， which focuses on train aerodynamics， vehicle-track-bridge-tunnelcoupling aerodynamics， vehicle-wind-sand-rain-snow environmental aerodynamics， pantograph-catenary aerodynamicof high-speed railways and safety of operation， and realizing their engineering application.The paper introduces a series of experimental platforms for testing aerodynamics of high-speed rails， private/public wind tunnel and high-availability clusters for numerical simulation.

Keywords： rail aerodynamics； high-speed rails； experimental platforms； research development； train aerodynamics； train/tunnel coupling aerodynamics； train/wind coupling aerodynamics； pantograph-catenary aerodynamics； human aerodynamics

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The key technology of testing and commissioning of high-speed railway and the main testing achievements

Kang Xiong and Yao Jianwei

Strategic Study of CAE 2015, Volume 17, Issue 4, Pages 21-29

Abstract:

The connotation and necessity of testing and commissioning of high-speed railway is explained andrailway are analyzed from the perspective of wheel/rail interaction， pantograph and ocs relation， aerodynamicsof high-speed railway and train-track-bridge coupling.Then the main achievements of testing and commissioning of high-speed railway in China are concluded，and some useful suggestions are given about high-speed railway construction and operation.

Keywords： high-speed railway； system test； testing and commissioning； wheel/rail interaction； pantograph and ocsrelation； train-track-bridge； aerodynamics of high-speed railway

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The development of aerodynamics & configurationtechnology for large aircraft

Zhang Yanzhong

Strategic Study of CAE 2009, Volume 11, Issue 5, Pages 4-17

Abstract:

The paper introduced the development of aerodynamics & configurationtechnology for large aircraft.The technique of fuselage and the advanced aerodynamics configurationThe impact of aerodynamics & configuration technology on safety, economical, comfortable and environmentalcharacters for large aircraft was analyzed.The proposal for enhancing the research of aerodynamics in

Keywords： large aircraft aerodynamics super critical foil winglet laminar flow technique BWB CFD wind tunnel

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Improvement of aerodynamic stability of suspension bridges with H-shaped simplified stiffening girder

Hiroshi KATSUCHI,Hitoshi YAMADA,Mayuko NISHIO,Yoko OKAZAKI

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 1, Pages 93-102 doi: 10.1007/s11709-015-0311-0

Abstract: Wind-tunnel study on the improvement of aerodynamic stability of simplified suspension-bridge girderObjective of the study is the development of an economically superior suspension bridge with 500–1,000The wind-tunnel test showed that an edge-girder type cross section exhibited large amplitude torsionalvortex-induced vibration as well as torsional flutter at a low wind speed.

Keywords： suspension bridge aerodynamics simplified girder wind-tunnel test

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Coupling analysis of passenger and train flows for a large-scale urban rail transit system

Frontiers of Engineering Management 2023, Volume 10, Issue 2, Pages 250-261 doi: 10.1007/s42524-021-0180-2

Abstract: Coupling analysis of passenger and train flows is an important approach in evaluating and optimizingthe operation efficiency of large-scale urban rail transit (URT) systems.This study proposes a passenger–train interaction simulation approach to determine the coupling relationshipchain, which can be used to analyze (including but not limited to) various indicators discussed in this researchto effectively support train schedule optimization and capacity evaluation for urban rail managers.

Keywords： urban rail transit coupling analysis passenger–train interaction large-scale simulation

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Characterization of aerodynamic performance of wind-lens turbine using high-fidelity CFD simulations

Islam HASHEM, Aida A. HAFIZ, Mohamed H. MOHAMED

Frontiers in Energy 2022, Volume 16, Issue 4, Pages 661-682 doi: 10.1007/s11708-020-0713-0

Abstract: areas in comparison to bare wind turbines.Wind-lenses can boost the velocity of the incoming wind through the turbine rotor owing to the creationIn this paper, the aerodynamic performance of the wind-lens is computationally assessed using high-fidelityFurthermore, comparisons with experimental data for validation are accomplished to prove that the proposedin power coefficient compared to bare wind turbine of the same rotor swept-area.

Keywords： shroud diffuser-augmented wind turbine (DAWT) Betz limit aerodynamics computational fluid dynamics (CFD

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Mean wind load induced incompatibility in nonlinear aeroelastic simulations of bridge spans

Zhitian ZHANG

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 3, Pages 605-617 doi: 10.1007/s11709-018-0499-x

Abstract: Mean wind response induced incompatibility and nonlinearity in bridge aerodynamics is discussed, whereIt is shown that, in cases of low wind speeds, the IF-denoted model reflects correctly the mean windAt very high wind speeds, however, even the IF-denoted model can lead to significant deviation from theTo solve the incompatibility at high wind speeds, a methodology of subtraction of pseudo-steady effectsinvestigated at both moderate and high wind speeds.

Keywords： bridge aerodynamics nonlinear aeroelastic model Pseudo-steady mean wind loads

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Innovative design technology for the new generation of high-speed EMU

Liang Jianying,Ding Sansan,Tian Aiqin and Zhao Hongwei

Strategic Study of CAE 2015, Volume 17, Issue 4, Pages 63-68

Abstract: This article comprehensively summarize the optimization of process innovation of the new generation of high-speedThe simulation and experiment result shows that the new generation of high-speed EMU is with enough strength， stiffness， structure stability， excellent features of vibration and fatigue，great performance aerodynamics

Keywords： high-speed EMU；lightweight；strength；vibration mode；aerodynamics

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Omnidirectional Antenna Diversity System for High-Speed Onboard Communication Article

Yongjian Zhang, Yue Li, Weiquan Zhang, Zhijun Zhang, Zhenghe Feng

Engineering 2022, Volume 11, Issue 4, Pages 72-79 doi: 10.1016/j.eng.2020.10.014

Abstract: dual-polarized antenna with synergetic electromagnetic and aerodynamic properties is propounded for high-speedThe propounded antenna is fabricated for design verification, and the experimental results agree welldiversity antenna has electromagnetic and aerodynamic merits, and exhibits an excellent potential for high-speed

Keywords： Antenna diversity system Aerodynamics Electromagnetics Omnidirectional radiation High-speed onboard

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High-speed train bogie technology research of coupled systems in high-speed trains

Zhao Minghua,Liang Shulin and Song Chunyuan

Strategic Study of CAE 2015, Volume 17, Issue 4, Pages 53-62

Abstract:

High-speed railway propose higher requirements on the bogie technology，in order to design a superprofile and worn profile tread analysis the matching relationship of wheel and rail.different climatic conditions，different line conditions on the ballastless track of China，setup China high-speedtrain load spectrum.welding and so on，the high-speed train bogie technology system was founded.

Keywords： high-speed train；wheel/rail relationship；system dyanmics；load spectrum；structural optimization

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Machine learning for fault diagnosis of high-speed train traction systems: A review

Frontiers of Engineering Management doi: 10.1007/s42524-023-0256-2

Abstract: High-speed trains (HSTs) have the advantages of comfort, efficiency, and convenience and have graduallycore component of HST, the reliability of the traction system has a substantially influence on the traindegrees of performance degradation and cause various failures, thus threatening the running safety of the trainThis paper primarily aims to review the research and application of machine learning in the field oftraction system fault diagnosis and assumes the future development blueprint.

Keywords： high-speed train traction systems machine learning fault diagnosis

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Development progress of China’s 600 km/h high-speed magnetic levitation train

Frontiers of Engineering Management 2022, Volume 9, Issue 3, Pages 509-515 doi: 10.1007/s42524-022-0199-z

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Keywords： 600 km/h high-speed magnetic levitation train development history technological innovation

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Research Status and Development of the Bowed-Twisted Blade for Turbomachines

Wang Zhongqi,Zheng Yan

Strategic Study of CAE 2000, Volume 2, Issue 6, Pages 40-48

Abstract: The effectiveness of applying the bowed-twisted blades to turbines demonstrated by the tunnel and staticThe advances in research on compressor bowed blades and key problems in this research are considered

Keywords： bowed-twisted blade secondary flow cascade aerodynamics

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The Statics, Dynamics, and Aerodynamics of Long-Span Bridges

Yeong-Bin Yang, Yaojun Ge

Engineering 2017, Volume 3, Issue 6, doi: 10.1016/j.eng.2017.12.005

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A prototype online database-enabled design framework for wind analysis/design of low-rise buildings

Dae Kun KWON,Ahsan KAREEM,Deepak KUMAR,Yukio TAMURA

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 1, Pages 121-130 doi: 10.1007/s11709-015-0329-3

Abstract: This study presents a development of an advanced cyberbased database-enabled design module for low-risebuildings (DEDM-LR) which provides estimation of the wind-induced responses for main wind force resisting

Keywords： wind loads low-rise building pressure measurement aerodynamics building design structural response building