1103 操舵リンク系ジオメトリの非線形性を考慮した鉄道用自己操舵性独立回転車輪台車(OS2-1 交通・物流システムのダイナミクス(鉄道・エレベータ・荷役機械),OS2 交通・物流システムのダイナミクス,オーガナイズド・セッション)

概要

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Most of the bogies used for LRT have independently rotating wheels (IRW) so that the floor of the passenger compartment can be lower. IRW, however, do not have a sufficient ability to self-steer, and generate large lateral forces in curved sections of track. The EEF (a German acronym for Single-wheel Single-running-gear) bogie, on the other hand, has IRW that have the self-steering ability. The nonlinear profile of the wheels creates the gravity stiffness that gives them their self-steering ability. In this paper, a multibody dynamics model of the vehicle is developed, and a numerical simulation is conducted. Experiments with a 1/10 scale model vehicle has also been developed. From these results, a design method for the self-steering mechanism of a railway bogie, considering the nonlinear effects of linkage arrangement, is proposed.
2008-12-09