In the EEF (single-wheel single running gear) method, the asymmetric geometry lateral force obtained by the nonlinear wheel profile makes it self-aligned to the Independent Rotation Wheelset (IRW), and lateral displacement between the wheel's yaw centre and the wheel-rail contact point obtains self-steering force. But the longitudinal creep force disables these functions when traction torque is applied to the EEF wheel unit directly. In this paper, we propose a new bogie type to obtain traction force of the IRW without losing the self-alignment and the self-steering capability. Traction torque was applied to a normal IRW pair, and the front and rear joint connected steering wheels guided the traction IRW pair along the track. The running performance of the proposed steering truck was studied by numerical simulation and a scaled model experiment.
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Document Type: Research Article
Department of Engineering Synthesis, The University of Tokyo, Tokyo, Japan
Department of Mechanical System Engineering, Tokyo University of Agriculture and Technology, Tokyo, Japan
Publication date: 2008-09-01