| 摘要 |
<p>The present invention relates to an air resistance reduction device of a railroad vehicle using surface vibration, which has a vibration membrane, slopping in accordance to frequencies, installed on the upper surface of a vehicle body of the railroad vehicle, and applies the frequencies to the vibration membrane to make the vibration membrane slop in accordance to the frequencies when the railroad vehicle travels at a high speed, thereby reducing friction resistance by removing air attached to the upper surface of the vehicle body when the railroad vehicle runs. The air resistance reduction device of a railroad vehicle using surface vibration comprises: a surface vibration unit having the vibration membrane vibrating in accordance to frequencies applied to a concave groove formed on the upper surface of the body of the railroad vehicle; a vibration generating unit generating frequencies in accordance to a predetermined control signal to apply the frequencies to the vibration membrane; a traveling speed acquisition unit acquiring the information on the traveling speed of the railroad vehicle; a vibration information storage unit storing the vibration information corresponding to the traveling speed of the railroad vehicle; and a vibration control unit controlling the vibrating generating unit to generate frequencies corresponding to the traveling speed of the railroad vehicle based on the information on the traveling speed acquired by the traveling speed acquisition unit.</p> |
