Technical gazette, Vol. 26 No. 2, 2019.
Original scientific paper
https://doi.org/10.17559/TV-20181213175649
Dynamic Finite Element Analysis of an Elevated Station-Track Structure Coupled System Under Resonance
Kai Cui
; Key Laboratory of High-speed Railway Engineering of the Ministry of Education, Southwest Jiaotong University, Chengdu, Sichuan, 610031, P. R. China
Lei Su
; School of Civil Engineering, Southwest Jiaotong University, Chengdu, Sichuan, 610031, P. R. China
Abstract
In this study, an elevated station and the track structure are regarded as a coupled system, and the vibration performance of the entire system is analyzed under dynamic loading. Special attention is paid to the influence of the mechanical properties of parts of the system on its vibration performance. After a brief literature review of relevant studies on urban elevated rail transit vibration performance, a three-dimensional dynamic analysis model is established considering each component and the connections of the system; furthermore, modal analysis is applied to this model. Based on the model analysis, the vibration performance under harmonic vibration loads and moving train loads are analyzed separately. During the analysis of harmonic vibration, the effects of various parameters (e.g., rail pad stiffness, mass of elastic support block) on system vibration are considered.
Keywords
dynamic; elevated station; harmonic vibration; modal analysis; track structure
Hrčak ID:
219536
URI
Publication date:
24.4.2019.
Visits: 1.503 *