Analytical Method under High-frequency vibration of Rolling Stock


Minoru SASAKURA, Katsunori AKUTSU, Yasufumi SUZUKI, Genki MIYAISHI, Takahiro NOMIYAMA


In a bogie of a high speed train higher frequency vibration tends to be induced by it's speed and light weight structure. The vibration transmitted to the carbody causes a higher level of interior noise and vibration. In order to investigate mechanisms of generation and transmission of the vibration, modal analysis of high-speed bogie was carried out. First, FEM model and modal model were compared to establish a fundamental model about the bogie frame. Furthermore, an applicability of the modal analysis to a full size bogie was evaluated under various vibrating conditions. Based on the results of the tests some typical vibration modes of the bogie frame and the drive system were investigated.