Independently Rotating Wheels for High Speed Trains

Kaplan, Ali Nadi; Hasselman, T. K.; Short, Steve

doi:10.4271/700841

Cited by 8 publications

(3 citation statements)

References 5 publications

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“…Consequently, a compromise should be achieved between the curving performance in sharp curves and that in large radius curves and tangent lines by use of active controls like yaw control, creep control of damping, and stiff control. IRWs with profiled tread, with partial coupling, and with a superimposition gearbox have been proposed by Kaplan et al [12], Dukkipati [13], and Jaschinski et al [14], respectively. Gretashel and Bose [15] investigated the separate drive motors with precise torque control to provide guidance and curving capability.…”

Section: Introductionmentioning

confidence: 99%

Analysis of steering performance of differential coupling wheelset

Chi

Zeng

et al. 2014

J. Mod. Transport.

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In order to improve the curving performance of the conventional wheelset in sharp curves and resolve the steering ability problem of the independently rotating wheel in large radius curves and tangent lines, a differential coupling wheelset (DCW) was developed in this work. The DCW was composed of two independently rotating wheels (IRWs) coupled by a clutch-type limited slip differential. The differential contains a static pre-stress clutch, which could lock both sides of IRWs of the DCW to ensure a good steering performance in curves with large radius and tangent track. In contrast, the clutch could unlock the two IRWs of the DCW in a sharp curve to endue it with the characteristic of an IRW, so that the vehicles can go through the tight curve smoothly. To study the dynamic performance of the DCW, a multi-body dynamic model of single bogie with DCWs was established. The self-centering capability, hunting stability, and self-steering performance on a curved track were analyzed and then compared with those of the conventional wheelset and IRW. Finally, the effect of coupling parameters of the DCW on the dynamic performance was investigated.

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Section: Introductionmentioning

confidence: 99%

Analysis of steering performance of differential coupling wheelset

Chi

Zeng

et al. 2014

J. Mod. Transport.

View full text Add to dashboard Cite

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“…Much effort has been directed to the solution of this problem. For example, independent wheels with profiled treads, independent wheels with partial coupling, or with a superimposition gearbox have been proposed by Kaplan [1], Dukkipati [2], and Jaschinski [3], respectively. Alternatively separate drive motors with precise torque control can be used to provide guidance and curving capability (Gretzschel [4]).…”

Section: Introductionmentioning

confidence: 99%

Independently Rotating Wheels with Induction Motors for High‐Speed Trains

Liang

Iwnicki

2011

Journal of Control Science and Engineering

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Railway vehicles with conventional wheelsets often experience problems of lateral instabilities or severe wear when running at high speed. The use of an independently rotating wheelset (IRW) can potentially eliminate the cause of wheelset hunting and reduce wheel wear as the mechanical feedback mechanism causing the problem is decoupled. This paper presents an investigation into the design of a novel induction motor configuration and controller for IRW in order to provide the stability required to satisfy the performance requirements for railway vehicles. A computer model of the mechanical and electrical parts of the system was developed. Simulation and experiments of the wheelsets with active driving motor control have demonstrated that a wheelset with independently driven wheels has a good stability performance over a traditional wheelset. Controllers with indirect field orientation control for dynamic control of an induction motor have shown to be suitable for this application in both its response and its controllability.

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“…This unstable oscillatory motion is a safety hazard due to the danger of the impacting flanges jumping the tracks. In order to overcome this disadvantage, many alternative options were suggested, for example, elastic coupling between wheels and independently rotating wheels which decouple two wheels and therefore could significantly increase critical speed of railway vehicles [1][2][3]. Fig.…”

mentioning

confidence: 99%

An Experimental Study of Independently Rotating Wheels for Railway Vehicles

Liang

Iwnicki

2007

2007 International Conference on Mechatronics and Automation

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It is well known that conventional wheelsets have disadvantages of potential oscillatory instability above critical speed as a result of solid coupling between two wheels. Independently rotating wheels can overcome this disadvantage but may loss the natural guidance which solid axis linked wheels have. This paper presents an experimental study of independently rotating wheels which adopt active wheel driven for high speed railway vehicles.

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Independently Rotating Wheels for High Speed Trains

Cited by 8 publications

References 5 publications

Analysis of steering performance of differential coupling wheelset

Analysis of steering performance of differential coupling wheelset

Independently Rotating Wheels with Induction Motors for High‐Speed Trains

An Experimental Study of Independently Rotating Wheels for Railway Vehicles

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