S0505-2-4 遮音板配列型騒音制御システムによる鉄道車両車内騒音の低減法(車両・機体・流体機械に関連した騒音問題へのアプローチと対策(2))
詳細
As a new countermeasure to the interior noise of the railway vehicle, a development for a noise control system with piezoelectric material has been advanced. This paper describes an outline of the noise control system, and an availability verification test about the system in the railway vehicle. For the test of the noise reduction effect in running vehicle, we manufactured the noise control system sets for a deck of the Shinkansen, and assessed the noise reduction effect in stationary test. The noise control systems were actually installed on the outer-side gable wall in a deck of the Shinkansen vehicle, the interior noise of the deck suppressed maximum 4dB in control frequency range, and the result demonstrates the availability of the system to the railway vehicle.
