Journal article
Dynamics of Independently Rotating Wheel System in the Analysis of Multibody Railroad Vehicles
Journal of computational and nonlinear dynamics, Vol.6(1), 011007
01/01/2011
DOI: 10.1115/1.4002089
Abstract
In this investigation, dynamic characteristics of independently rotating wheel systems are discussed. To this end, a multibody independently rotating wheelset (IRW) model is developed using the method of velocity transformation. The linear stability analysis of a two-axle IRW truck is performed, the hunting stability and vibration characteristics of IRW truck are investigated, and the results are compared with those obtained using the multibody dynamics model. Good agreement is obtained in hunting frequencies and critical speeds. It is shown using the linear IRW equations that since a constant forward speed is assumed for IRW, the longitudinal slip can occur due to the change in the wheel rolling radius. This leads to longitudinal creep forces even in the case of IRW and it contributes to a coupling of the lateral, yaw, and pitch motions of IRW. Furthermore, it is observed in several numerical examples that, due to small self-centering forces of IRW, continuous flange contact occurs on tangent track, while in curve negotiation, flange contacts on outer wheel of the front axle, as well as that on inner wheel of the rear axle, occur. Such an effect can be more significant when sharp curve negotiation is considered as encountered in light rail vehicle applications.
Details
- Title: Subtitle
- Dynamics of Independently Rotating Wheel System in the Analysis of Multibody Railroad Vehicles
- Creators
- Hiroyuki Sugiyama - Department of Mechanical Engineering, Tokyo University of Science, Tokyo 102-0073, JapanRyosuke Matsumura - Department of Mechanical Engineering, Tokyo University of Science, Tokyo 102-0073, JapanYoshihiro Suda - Institute of Industrial Science, University of Tokyo, Tokyo 153-8505, JapanHideaki Ezaki - System Technology Development Center, Kawasaki Heavy Industries, Ltd., Hyogo 673-8666, Japan
- Resource Type
- Journal article
- Publication Details
- Journal of computational and nonlinear dynamics, Vol.6(1), 011007
- Publisher
- ASME
- DOI
- 10.1115/1.4002089
- ISSN
- 1555-1415
- eISSN
- 1555-1423
- Language
- English
- Date published
- 01/01/2011
- Academic Unit
- Mechanical Engineering
- Record Identifier
- 9984064569602771
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