Journal article
Running Stability of Independently Rotating Wheelset with Inverted Tread Conicity(Mechanical Systems)
Transactions of the Japan Society of Mechanical Engineers Series C, Vol.76(771), pp.3077-3085
2010
DOI: 10.1299/kikaic.76.3077
Abstract
In this investigation, hunting stability of an independently rotating wheelset (IRW) with inverted tread conicity is discussed. To this end, equations of motion of IRW with inverted tread conicity are derived and used for the stability analysis. It is demonstrated that unstable hunting motion occurs in this type of wheelset and the hunting frequency decreases as the speed increases, which is totally different characteristics from those of the conventional wheelset. The cause of such unique vibration characteristics is investigated from an energy point of view, and the effect of coupling terms associated with the wheel/rail creep forces on the stability of the hunting motion is discussed using the equations of motion in a block diagram form. Furthermore, it is presented that the hunting motion can be stabilized by adequate choices of primary suspensions and the absolute stability condition is theoretically derived for a single suspended IRW with inverted tread conicity.
Details
- Title: Subtitle
- Running Stability of Independently Rotating Wheelset with Inverted Tread Conicity(Mechanical Systems)
- Creators
- Yuta KomatsuHiroyuki Sugiyama - Tokyo University of ScienceYohei MichitsujiYoshihiro Suda
- Resource Type
- Journal article
- Publication Details
- Transactions of the Japan Society of Mechanical Engineers Series C, Vol.76(771), pp.3077-3085
- DOI
- 10.1299/kikaic.76.3077
- ISSN
- 0387-5024
- eISSN
- 1884-8354
- Language
- English
- Date published
- 2010
- Academic Unit
- Mechanical Engineering
- Record Identifier
- 9984196655602771
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