3207 Reduction of Flexural Vibration of Railway Vehicle Carbody with High-damping Elastic Support of Underfloor Equipments : Numerical study and Vibration test of Railway Vehicle Equivalent to Shinkansen

Abstract

In this paper, we investigated the effect of reduction of flexural vibration in a railway vehicle carbody by supporting underfloor equipment using high-damping elastic mounts. At first, a numerical model for finite element method (FEM) simulation was built to check the reduction capability of flexural vibration by this method. Then, we developed underfloor equipment units with elastic mounts and dummy weight, so as to be able to easily change the layout and the mass of underfloor equipment. And excitation tests of a Shinkansen-type test vehicle with the underfloor equipment units were conducted, and good vibration reduction performance was observed in the tests.