Abstract
Structural bone noise in a railway vehicle, which is radiated from the floor panel that is vibrated by the force from the bogie, is one of major components of the interior noise. The conventional countermeasure to the structural bone noise has been to isolate the vibration between the floor panel and floor structure of the car body. When floor panel is large size, the noise that is radiated according to the vibration mode, therefore, the radiated noise into the cabin become to be complex condition. This paper describes the outline of the new type floor panel that is divided to small panels in size and possibility to suppress the structural bone noise by the simulations.
