Abstract
Vibration control in rail vehicles is critical for passenger comfort as well as infrastructure lifespan. Since rail vehicle vibration has such a big influence on railway infrastructure, it's crucial to figure out how to control it. Improved ride comfort is one of the benefits of vibration control. The contact stiffness between the rail track and the rail vehicle wheels is extremely high due to the steel-on-steel contact; this allows the rail vehicle to respond to track irregularities via vertical, lateral, or transversal displacements. Due to the rising demand for high-speed trains, solutions to isolate the reaction of rail cars to track irregularities must be developed, as increased speeds result in increased frequency of track irregularity-induced displacements. If the vibration frequencies are within the same range as the passengers' natural frequencies, increased displacement frequencies generate vibrations that negatively influence ride comfort. The purpose of this literature survey is to give an overview of previous studies regarding methods to passively or actively achieve vertical vibration reduction in a rail vehicle and improve the ride comfort for passengers.
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