Abstract
It is important for light rail vehicles (LRVs) to have bogies that smoothly pass sharp curves. In order to increase self-steering ability of independently rotating wheelset (IRW), the new-type of IRW with negative tread conicity has been proposed. In previous study, it is shown from numerical simulation that the new-type wheelset have enough self-steering ability than the conventional wheelset．However, running performance in extremely sharp curve with a radius of 15 meters assuming LRV is insufficient only with numerical simulation, and it is necessary to understand the phenomena by experiments. In this paper, 1/10 scaled experimental model with rigid wheelset and negative tread IRW are developed. By running tests, the curving performance of two type of wheelset is compared in terms of attack angle. As a result of running tests, the negative tread IRW has smaller attack angle in the constant curve than the conventional wheelset and has higher self-steering ability.
