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Fatigue life prediction for locomotive bogie frames using virtual prototype technique

journal contribution
posted on 2022-02-13, 22:01 authored by Ruixian Xiu, Maksym SpiryaginMaksym Spiryagin, Qing WuQing Wu, Shuchen Yang, Yanwen Liu
© IMechE 2021. Current research papers use simulated load spectrums to assess bogie frames’ fatigue life but seldom consider traction and braking loads. Traction and braking loads play important roles in predicting fatigue life in high-speed and heavy haul operational scenarios. Hence, there is a research gap in terms of the consideration of longitudinal load spectrums while assessing bogie frames’ fatigue life. This paper presents research about this topic. A virtual prototype technique available in literature has been extended for this purpose; it uses multibody dynamics and finite element techniques to simulate the behaviour of bogie frames under real operational service loads. As a result, the special simulation methodology has been developed in this work and it includes the unique integration of simulation approaches that includes train dynamics, locomotive dynamics with the consideration of a traction control algorithm and the adopted fatigue life calculation method. This paper gives numerical examples of a rigid-flexible coupled dynamic railway vehicle model subjected to longitudinal forces. Road Environment Percent Occurrence Spectrum (REPOS) load spectrums of the bogie frame were developed from a whole-trip train simulation on a real route. The spectrums are then used to predict locomotive the bogie frame’s fatigue life. The results of the bogie frame fatigue life evaluation performed in this paper show that fatigue lives at the roots of traction rod seats under longitudinal load spectrums are shorter than their fatigue life under vertical load spectrums.

History

Volume

235

Issue

9

Start Page

1122

End Page

1131

Number of Pages

10

eISSN

2041-3017

ISSN

0954-4097

Publisher

Sage

Language

en

Peer Reviewed

  • Yes

Open Access

  • No

Acceptance Date

2020-12-13

External Author Affiliations

Changchun Normal University, China

Era Eligible

  • Yes

Journal

Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit

Article Number

ARTN 0954409720986667