A103 Study on the Vibration Control by the Modal Analysis of a MAGLEV Vehicle

概要

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Magnetically levitated vehicles, also called as MAGLEV vehicles, have been gaining attention as the next generation of high-speed public transportation that has advantages such as high speed and low emission. One of the problems in development of the MAGLEV vehicle has been its unsatisfactory ride comfort. In this research, a half vehicle cross-sectional model is used to explore the design and effects of a vibration control system applied to the secondary suspension between the car body and bogie. When vibration reduction is done only with lateral actuators between the car body and bogie, the roll vibration of the car body could increase in the low frequency range, although the lateral vibration is reduced. On the other hand, the use of both lateral and vertical actuators leads to higher costs though obviously is more effective. To solve these problems, this paper clarifies the vibration modes of the car body and bogie by modal analysis of the coupled vibration system. Based on that result, a configuration of reduction devices and actuators that takes the vibration mode into account is proposed, and its effect is confirmed by computer simulation.
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