Fatigue Fixture Design and Structure Simulation Analysis for Side Beams of High-speed Train  
Author Wenxue Qian

 
Co-Author(s) Shuai Song; Ying Zhang; Xiaowei Yin; Liyang Xie

 
Abstract High-speed train side beam structure mainly has the task of hanging various equipments. A train will bear the action of random vibration and impact load during the process of traveling. The side beam structure will cause fatigue damage under the action of the external alternating load. For fatigue analysis of high-speed train side beam structure, the three-dimensional model of the side beam structural was firstly built using SolidWorks and imported into the workbench for material setting and finite element modeling. The stress distribution and max stress were obtained through FEA. According to the standard load spectrum and the S-N curve of the material, the fatigue life simulation analysis of structural was carried. After that several fatigue tests of the structural components were carried out to test the fatigue of the side beam structures to verify and correct the finite element analysis results. On this basis, the fatigue life evaluation of the entire side beam structure was performed in combination with the measured load spectrum. It provides a necessary basis for the life assessment of the train body structure.

 
Keywords Finite element modeling, Fatigue limit, Fatigue test design, Fatigue life
   
    Article #:  RQD25-244
 
Proceedings of 25th ISSAT International Conference on Reliability & Quality in Design
August 1-3, 2019 - Las Vegas, NV, U.S.A.