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Keywords

induction motor 9

extension set 4

level set method 4

topology optimization 4

isogeometric analysis 3

rough set 3

DSP 2

Random finite set 2

all set 2

differential mean value theorem (DMVT) 2

direct torque control (DTC) 2

high speed train 2

high-speed train 2

trimmed element 2

ultrasonic motor 2

vector control 2

2.048 Mb/s high speed signalling link 1

20 kt-level combined heavy-haul train 1

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Study on train traction simulation of high speed motor train set

Kang Xiong

Strategic Study of CAE 2011, Volume 13, Issue 1, Pages 62-68

Abstract:

Train traction simulation of high speed motor train set has significantThe calculation method of train traction simulation of high speed motor train set is studied and itsdifferences with general train traction calculation and its relative key theories are provided.It is concluded by applications that the method of train traction simulation of high speed motor trainset has good simulation precision and practical usage.

Keywords： high speed motor train set traction simulation

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Aerodynamic impact of train-induced wind on a moving motor-van

Jiajun HE; Huoyue XIANG; Yongle LI; Bin HAN

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 7, Pages 909-927 doi: 10.1007/s11709-022-0833-1

Abstract: The newly-built single-level rail-cum-road bridge brings the issue of the aerodynamic impact of train-inducedan aerodynamic impact mechanism was explored; a relationship between the transverse distance between trainand motor-van (hereinfafter referred to as van) and the aerodynamic effects on the van was explored

Keywords： rail-cum-road bridge aerodynamic impact train-induced wind CFD aerodynamic force quantitative analysis

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The Birth of the First High-Speed Electric Passenger Train Set in China

刘友梅

Strategic Study of CAE 1999, Volume 1, Issue 1, Pages 85-85

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Linear ultrasonic motor using quadrate plate transducer

Jiamei JIN, Chunsheng ZHAO

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 1, Pages 88-91 doi: 10.1007/s11465-009-0016-y

Abstract: A linear ultrasonic motor using a quadrate plate transducer was developed for precision positioning.This motor consists of two pairs of Pb(Zr,Ti)O piezoelectric ceramic elements, which are piezoelectricallyexcited into the second-bending mode of the motor stator’s neutral surface in two orthogonal directionsThe performance characteristics achieved by the motor are: 1) a maximum linear speed of more than 60

Keywords： ultrasonic motor quadrate plate coincident frequency alternant contact

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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 a

Keywords： train speed trajectory optimization railway operation stochastic programming

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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: core 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 train

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

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Design and analysis of linear oscillating motor for linear pump application-magnetic field, dynamics

Zongxia JIAO,Tianyi WANG,Liang YAN

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 4, Pages 351-362 doi: 10.1007/s11465-016-0407-9

Abstract:

A linear oscillating motor is an electromagnetic actuator that can achieve short-stroke reciprocatingIn this paper, a general framework of linear oscillating motor design and optimization is addressed in

Keywords： linear oscillating motor linear pump magnetic field motor optimization

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Metro train rescheduling by adding backup trains under disrupted scenarios

Jiateng YIN, Yihui WANG, Tao TANG, Jing XUN, Shuai SU

Frontiers of Engineering Management 2017, Volume 4, Issue 4, Pages 418-427 doi: 10.15302/J-FEM-2017044

Abstract: In this study, we first develop a mixed integer programming model to determine the optimal train reschedulingThe aim of train rescheduling is to frequently dispatch trains to evacuate delayed passengers after theNumerical experiments are implemented to verify the effectiveness of the proposed train rescheduling

Keywords： train rescheduling backup train metro line disruption timetable

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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 optimizingThis study proposes a passenger–train interaction simulation approach to determine the coupling relationshipbetween passenger and train flows.On the bases of time-varying origin–destination demand, train timetable, and network topology, the proposed(including but not limited to) various indicators discussed in this research to effectively support train

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

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Level set band method: A combination of density-based and level set methods for the topology optimization

Peng WEI, Wenwen WANG, Yang YANG, Michael Yu WANG

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 3, Pages 390-405 doi: 10.1007/s11465-020-0588-0

Abstract: The level set method (LSM), which is transplanted from the computer graphics field, has been successfullyIn this study, a level set band method is proposed to overcome this drawback in handling topology changesin the level set framework.the continuity of objective and constraint functions by incorporating one parameter, namely, level setThe proposed method demonstrates a flexible topology change by applying a certain size of the level set

Keywords： level set method topology optimization density-based method level set band

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modified neural learning algorithm for online rotor resistance estimation in vector controlled induction motor

A. CHITRA,S. HIMAVATHI

Frontiers in Energy 2015, Volume 9, Issue 1, Pages 22-30 doi: 10.1007/s11708-014-0339-1

Abstract: Online estimation of rotor resistance is essential for high performance vector controlled drives. In this paper, a novel modified neural algorithm has been identified for the online estimation of rotor resistance. Neural based estimators are now receiving active consideration as they have a number of advantages over conventional techniques. The training algorithm of the neural network determines its learning speed, stability, weight convergence, accuracy of estimation, speed of tracking and ease of implementation. In this paper, the neural estimator has been studied with conventional and proposed learning algorithms. The sensitivity of the rotor resistance change has been tested for a wide range of variation from -50% to+50% on the stability of the drive system with and without estimator. It is quiet appealing to settle with optimal estimation time and error for the viable realization. The study is conducted extensively for estimation and tracking. The proposed learning algorithm is found to exhibit good estimation and tracking capabilities. Besides, it reduces computational complexity and, hence, more feasible for practical digital implementation.

Keywords： neural networks back propagation (BP) rotor resistance estimators vector control induction motor

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Pollution survey of carbonyl compounds in train air

LU Hao, ZHU Lizhong

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 1, Pages 125-128 doi: 10.1007/s11783-007-0023-3

Abstract: The train is an important vehicle in China, but its air quality has important impacts on passengersThe carbonyl compounds in train air could be harmful to human health.

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Review of human–robot coordination control for rehabilitation based on motor function evaluation

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 2, doi: 10.1007/s11465-022-0684-4

Abstract: As a wearable and intelligent system, a lower limb exoskeleton rehabilitation robot can provide auxiliary rehabilitation training for patients with lower limb walking impairment/loss and address the existing problem of insufficient medical resources. One of the main elements of such a human–robot coupling system is a control system to ensure human–robot coordination. This review aims to summarise the development of human–robot coordination control and the associated research achievements and provide insight into the research challenges in promoting innovative design in such control systems. The patients’ functional disorders and clinical rehabilitation needs regarding lower limbs are analysed in detail, forming the basis for the human–robot coordination of lower limb rehabilitation robots. Then, human–robot coordination is discussed in terms of three aspects: modelling, perception and control. Based on the reviewed research, the demand for robotic rehabilitation, modelling for human–robot coupling systems with new structures and assessment methods with different etiologies based on multi-mode sensors are discussed in detail, suggesting development directions of human–robot coordination and providing a reference for relevant research.

Keywords： human–robot coupling lower limb rehabilitation exoskeleton robot motor assessment dynamical model

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Maximum independent set in planning freight railway transportation

Gainanov Damir N., Mladenovic NENAD, Rasskazova V. A.

Frontiers of Engineering Management 2018, Volume 5, Issue 4, Pages 499-506 doi: 10.15302/J-FEM-2018031

Abstract: We define a special conflict graph on the basis of a set of acceptable train routes.aims to solve the classical combinatorial optimization problem in relation to the maximum independent setthese constructions, the lower and upper bounds for the number of vertices in the maximum independent set

Keywords： independent set algorithm planning of transportation two-sided estimate

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Operating mechanism and set pair analysis model of a sustainable water resources system

Chaoyang DU,Jingjie YU,Huaping ZHONG,Dandan WANG

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 2, Pages 288-297 doi: 10.1007/s11783-014-0642-4

Abstract: The study introduces a new approach, set pair analysis theory, to measure the state of a SWRS, and anAn evaluation model of the SWRS based on set pair analysis theory is constructed, and an example of SWRS

Keywords： sustainable water resources system operating mechanism set pair analysis model Shanghai