Abstract

An overview of steerable bogies (or trucks) for railway vehicles is provided, along with their potential benefits to railroad operations. Some of the common designs for steerable bogies are reviewed. A NUCARS simulation model is used to compare a three-axle steerable and straight bogie in terms of their curving dynamics in 7.5- and 10-degree curves. The simulation results show that steerable bogies have a substantially lower axle angle of attack and wheel/rail lateral force. Further, the benefits of steerable bogies in terms of increased operational efficiency to the railroads are discussed.

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