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Characterization of the tensile properties of friction stir welded aluminum alloy joints based on axial force, traversespeed, and rotational speed

Biranchi PANDA,A. GARG,Zhang JIAN,Akbar HEIDARZADEH,Liang GAO

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 3,   Pages 289-298 doi: 10.1007/s11465-016-0393-y

Abstract: Existing literature indicates that tensile properties exhibit strong dependence on the rotational speed, traverse speed, and axial force of the tool that was used.to produce the functional relationships between tensile properties and the three inputs (rotational speed, traverse speed, and axial force) of the FSW process.A high UTS was achieved, including a rotational speed of 1050 r/min and traverse speed of 95 mm/min.

Keywords： tensile properties     ultimate tensile strength     tensile elongation     friction stir welding     tool rotational speed     genetic programming     welding speed    

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Effects of process parameters on surface roughness in abrasive waterjet cutting of aluminium

M. CHITHIRAI PON SELVAN, N. MOHANA SUNDARA RAJU, H. K. SACHIDANANDA

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 4,   Pages 439-444 doi: 10.1007/s11465-012-0337-0

Abstract: Experiments were conducted in varying water pressure, nozzle traverse speed, abrasive mass flow rate

Keywords： abrasive waterjet     aluminium     garnet     water pressure     mass flow rate     traverse speed     standoff distance    

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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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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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On the improvement design of dynamic characteristics for the roller follower of a variable-speed plate

Hui Ching FAN, Hong Sen YAN

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 1,   Pages 5-15 doi: 10.1007/s11465-012-0310-y

Abstract:

Without modifying the cam contour, a cam mechanism with a variable input speed trajectory offers anFirstly, the speed trajectory of cam is derived by employing Bezier curve, and motion continuity conditions

Keywords： cam mechanism     variable input speed     kinematic design     dynamic design     optimal design    

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Title Author Date Type Operation

Characterization of the tensile properties of friction stir welded aluminum alloy joints based on axial force, traversespeed, and rotational speed

Biranchi PANDA,A. GARG,Zhang JIAN,Akbar HEIDARZADEH,Liang GAO

Journal Article

Effects of process parameters on surface roughness in abrasive waterjet cutting of aluminium

M. CHITHIRAI PON SELVAN, N. MOHANA SUNDARA RAJU, H. K. SACHIDANANDA

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

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

Journal Article

On the improvement design of dynamic characteristics for the roller follower of a variable-speed plate

Hui Ching FAN, Hong Sen YAN

Journal Article