鉄道車両の実走行模擬加振による弾性トーラスの車体弾性振動低減効果の検証

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  • Verification of reduction effect of car-body elastic vibration using elastic torus by simulated running excitation of railway vehicle

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<p>We have been developing an elastic torus filled with water or super absorbent polymer (SAP) as one of the methods for reducing car-body elastic vibrations. This device, which is inspired by vibration reduction effect by passengers, is a kind of dynamic vibration absorber utilizing elastic deformation of an elastic body. We carried out excitation tests using a Shinkansen type test vehicle in a rolling stock testing plant to examine the effect of reducing car-body vibrations. The results showed that two dominant peaks around 10Hz in the acceleration power spectrum densities of the floor corresponding to elastic vibration modes were reduced simultaneously when the elastic tori were loaded on the vehicle. The peak values decreased according to the increase of the number of elastic tori. And it has found that the ride comfort can be improved.</p>

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