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A method of analysis for modal aero-damping of vibrating blade in incompressible flow

Jun XING, Lin LI,

Frontiers in Energy 2009, Volume 3, Issue 4,   Pages 465-471 doi: 10.1007/s11708-009-0037-6

Abstract: The algorithm, which is suited for low-speed flow, to compute aero-damping is based on classical lift

Keywords： compressor     different     three-dimension analytical     classical     low-speed    

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A novel NN based rotor flux MRAS to overcome low speed problems for rotor resistance estimation in vector

Venkadesan ARUNACHALAM,Himavathi SRINIVASAN,A. MUTHURAMALINGAM

Frontiers in Energy 2016, Volume 10, Issue 4,   Pages 382-392 doi: 10.1007/s11708-016-0421-y

Abstract: This paper presents a new neural network based model reference adaptive system (MRAS) to solve low speedThe voltage model encounters major drawbacks at low speeds, namely, integrator drift and stator resistanceThese lead to a significant error in the estimation of rotor resistance at low speed.The performance of the novel NN-FLUX-MRAS is compared with the FLUX-MRAS for low speed problems in termsThe proposed NN-FLUX-MRAS is shown to overcome the low speed problems in Matlab simulation.
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Technological Development of High Speed Maglev System Based on Low Vacuum Pipeline

Feng Zhongwei, Fang Xing, Li Hongmei, Cheng Aijun, Pan Yongjie

Strategic Study of Chinese Academy of Engineering 2018, Volume 20, Issue 6,   Pages 105-111 doi: 10.15302/J-SSCAE-2018.06.017

Abstract: operating noise, it is difficult to achieve economically any significant increase in the operation speedTo meet the demand for a higher economical operating speed, apart from the use of the magnetic levitationtechnique to reduce wheel-rail friction and vibration, construction of a low vacuum operating environmentto reduce air resistance and noise is an important development direction for higher speed rail transitThis paper expounds the significance of developing a high speed maglev system based on low vacuum pipelines

Keywords： rail transit     low vacuum pipes     high speed maglev     system technology    

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Reasonable Rated Voltage of High and Medium Power Adjustable-Speed Drives for Energy Saving

Ma Xiaoliang

Strategic Study of Chinese Academy of Engineering 2001, Volume 3, Issue 11,   Pages 80-84

Abstract:

A large amount of energy will be saved if adjustable-speed drives are adopted by high and medium powerThe adjustable-speed scheme, a 10 kV motor is fed by a 10 kV inverter, is not reasonable because this

Keywords： high and medium power     adjustable-speed drives for energy saving     reasonable rated voltage     low voltage    

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Robust energy-efficient train speed profile optimization in a scenario-based position–time–speed network

Frontiers of Engineering Management 2021, Volume 8, Issue 4,   Pages 595-614 doi: 10.1007/s42524-021-0173-1

Abstract: Train speed profile optimization is an efficient approach to reducing energy consumption in urban railassume deterministic parameters as model inputs, this paper proposes a robust energy-efficient train speedSpecifically, we first construct a scenario-based position–time–speed (PTS) network by considering resistanceThen, a percentile reliability model is proposed to generate a robust train speed profile, by which theeffectiveness of the model and analyze the influences of parameter uncertainties on the generated train speed

Keywords： robust train speed profile     percentile reliability model     scenario-based position–time–speed network    

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Value and governance of high-speed railway

Xiaoyan LIN, Zehua ZHANG, Meng WANG

Frontiers of Engineering Management 2017, Volume 4, Issue 4,   Pages 463-482 doi: 10.15302/J-FEM-2017054

Abstract: This paper considers multiple perspectives to explore the concept of high-speed railway (HSR), rationallyThis paper analyzes the governance potential of major countries in the high-speed railway value chainand studies the feasible ways and development strategies to enhance the high-speed railway governanceSecond, the high-speed railway standard output has become the core competitiveness that embodies high-speedThird, the global high-speed railway market presents a hierarchical high-speed railway governance model

Keywords： high-speed railway value     communication value     high-speed railway value governance     governance path upgrade    

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Detection of critical road roughness sections by trend analysis and investigation of driver speed interaction

Frontiers of Structural and Civil Engineering   Pages 515-532 doi: 10.1007/s11709-022-0814-4

Abstract: Pavement roughness (IRI—International Roughness Index values) influence the stability of traffic movements both on intercity roads and urban roads. This study is to determine the exact locations of critical pavement roughness values that affect traffic motion stability and comfort in city centre highway arteries. Roughness data with 10 m intervals were collected on a 3140 m divided road containing three consecutive signalized intersections in the city centre arterial. These data were analysed using the distance-dependent Mann-Kendall trend analysis method and checkerboard model. The sections where roughness is important were determined at a 95% confidence interval. The results will show where future pavement improvements should be prioritized for municipalities and road maintenance engineers and will form a basis for the urban road management system.

Keywords： trend analysis     checkerboard model     IRI     driver speed    

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Exploration on Engineering Management Practice of China’s High Speed Railways

Yong-fu Sun

Frontiers of Engineering Management 2014, Volume 1, Issue 3,   Pages 232-240 doi: 10.15302/J-FEM-2014043

Abstract: explores the principal motivations and successful experiences of the rapid development of China’s high speedUnder the overall coordination of the government, a high speed railway technology system has been formedThe target control system and support-guarantee system were established for the high speed railway projectcommissioning, conducting strict acceptance, and achieving construction management experiences on the high speed

Keywords： high speed railway     engineering management     practice     innovation    

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Technical studies on high-speed turnouts for china railways

He Huawu

Strategic Study of Chinese Academy of Engineering 2009, Volume 11, Issue 5,   Pages 23-30

Abstract:

High-speed turnout serves as a vital part of track structure for high-speedIn this paper, design parameters and linear plane of high-speed turnout, main structure characteristicsof components (including fastening, turnout sleeper, switching system etc.), design theories of high-speedoffer remarkable guiding significance for the further R&D, test, verification and wide-use of high-speed

Keywords： high-speed railway     high-speed turnout     technical studies    

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WEIS wheel speed real-time measuring method for VOSM

Mengyao PAN, Guixiong LIU, Xiaobin HONG, Tusheng LIN,

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 3,   Pages 322-327 doi: 10.1007/s11465-010-0022-0

Abstract: Wheel speed is one of the key parameters of vehicle operating attitude.To solve the problems in traditional wheel speed measuring methods, such as low measurement precisionmonitoring of the vehicle’s operating attitude, a wheel embedded intelligent sensors (WEIS) wheel speedThe experimental result shows that under experimental conditions the speed measurement error is −2.05%, and the speed measuring response time is 0.45 s.

Keywords： wheel embedded     intelligent sensing     wheel speed     monitoring    

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Interactive effects of high-speed rail on nodal zones in a city: exploratory study on China

Guo LIU, Kunhui YE

Frontiers of Engineering Management 2019, Volume 6, Issue 3,   Pages 327-335 doi: 10.1007/s42524-019-0051-2

Abstract: The arrival of the high-speed rail (HSR) era has accelerated the pace of urban development, but its broad

Keywords： high-speed rail     nodal zone     interactive effects     sustainable urbanization     China    

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Development of an analytical model to estimate the churning losses in high-speed axial piston pumps

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 2, doi: 10.1007/s11465-021-0671-1

Abstract: The axial piston pumps in aerospace applications are often characterized by high-speed rotation to achieveThe churning losses deserve much attention at the design stage of high-speed axial piston pumps, butThe presented analytical model provides practical guidelines for reducing the churning losses in high-speed

Keywords： axial piston pump     rotating parts     high rotational speed     churning losses     drag torque    

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Robust train speed trajectory optimization: A stochastic constrained shortest path approach

Li WANG, Lixing YANG, Ziyou GAO, Yeran HUANG

Frontiers of Engineering Management 2017, Volume 4, Issue 4,   Pages 408-417 doi: 10.15302/J-FEM-2017042

Abstract: Train speed trajectory optimization is a significant issue in railway traffic systems, and it plays aTo appropriately characterize the uncertainties and generate a robust speed trajectory, this study specificallyproposes distance-speed networks over the inter-station and treats the uncertainty with respect to energy

Keywords： train speed trajectory optimization     railway operation     stochastic programming    

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Case modifying of high-speed cutting database based on CSP and similarity theory

Kejun XIANG, Zhanqiang LIU, Xing AI

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 1,   Pages 83-87 doi: 10.1007/s11465-009-0014-0

Abstract: By analyzing the reasoning of a high-speed cutting database system, a case modifying method is put forwardOn the basis of the high-speed cutting theory, a similarity calculation formula is deduced to calculatecalculation are applied to case modifying, which is possible to automatically modify cases in the high-speed

Keywords： high-speed cutting database     case modifying     CSP     similarity calculation    

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Comprehensive measurement and evaluation system of high-speed motorized spindle

Dashuai ZHOU, Liangsheng WU, Yichuan XIAO

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 2,   Pages 263-269 doi: 10.1007/s11465-011-0217-z

Abstract: The high-speed motorized spindle is the most critical part and becoming more widely used in the machinetool at present, and its precision may affect the overall performance of high-speed cutting.Most of the studies on high-speed cutting are focused on the cutting force, the vibration of the spindlethe spindle’s thermal deformations; hence, how to roundly measure and objectively evaluate high-speedThis paper presents a comprehensive measurement and evaluation system of high-speed motorized spindle

Keywords： high-speed motorized spindle     comprehensive prope rties     evaluation system    

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Title Author Date Type Operation

A method of analysis for modal aero-damping of vibrating blade in incompressible flow

Jun XING, Lin LI,

Journal Article

A novel NN based rotor flux MRAS to overcome low speed problems for rotor resistance estimation in vector

Venkadesan ARUNACHALAM,Himavathi SRINIVASAN,A. MUTHURAMALINGAM

Journal Article

Technological Development of High Speed Maglev System Based on Low Vacuum Pipeline

Feng Zhongwei, Fang Xing, Li Hongmei, Cheng Aijun, Pan Yongjie

Journal Article

Reasonable Rated Voltage of High and Medium Power Adjustable-Speed Drives for Energy Saving

Ma Xiaoliang

Journal Article

Robust energy-efficient train speed profile optimization in a scenario-based position–time–speed network

Journal Article

Value and governance of high-speed railway

Xiaoyan LIN, Zehua ZHANG, Meng WANG

Journal Article

Detection of critical road roughness sections by trend analysis and investigation of driver speed interaction

Journal Article

Exploration on Engineering Management Practice of China’s High Speed Railways

Yong-fu Sun

Journal Article

Technical studies on high-speed turnouts for china railways

He Huawu

Journal Article

WEIS wheel speed real-time measuring method for VOSM

Mengyao PAN, Guixiong LIU, Xiaobin HONG, Tusheng LIN,

Journal Article

Interactive effects of high-speed rail on nodal zones in a city: exploratory study on China

Guo LIU, Kunhui YE

Journal Article

Development of an analytical model to estimate the churning losses in high-speed axial piston pumps

Journal Article

Robust train speed trajectory optimization: A stochastic constrained shortest path approach

Li WANG, Lixing YANG, Ziyou GAO, Yeran HUANG

Journal Article

Case modifying of high-speed cutting database based on CSP and similarity theory

Kejun XIANG, Zhanqiang LIU, Xing AI

Journal Article

Comprehensive measurement and evaluation system of high-speed motorized spindle

Dashuai ZHOU, Liangsheng WU, Yichuan XIAO

Journal Article