第一部門：物理数学力学問題 （C）

[S01C-06] An analytical solution of mathematical expectation for bogie-track interaction problems

Kazuhisa Abe¹, *Shun Yoshino¹, Kazuhiro Koro¹ (1. Niigata University)

Keywords:bogie-track interaction, random process, expectation analysis

This paper presents an analytical solution of mathematical expectation for dynamic interaction between a bogie and an infinite track in which a stationary random roughness is considered on the railhead. The vibration component excited by the roughness is decomposed into the response function of the bogie-track coupling system and the power spectrum density of roughness. The dynamic nature which is independent of the roughness can then be represented by the former.