|Table of Contents|

FEA of vibration response tolerance of traction transformer for high-speed train(PDF)

《交通运输工程学报》[ISSN:1671-1637/CN:61-1369/U]

Issue:
2016年05期
Page:
42-48
Research Field:
载运工具运用工程
Publishing date:

Info

Title:
FEA of vibration response tolerance of traction transformer for high-speed train
Author(s):
YU Jin-peng1; 2;  SONG Qing-peng1;  ZHANG Ming-yuan1;  ZHANG Ji-wang1;  LIU Xiao-xia1;  ZHANG Li-min1
1. State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031, Sichuan, China; 2. CRRC Tangshan Co., Ltd., Tangshan 063035, Hebei, China
Keywords:
high-speed train;  traction transformer;  vibration response tolerance;  linear suspension stiffness;  nonlinear suspension stiffness
PACS:
U211.3
DOI:
-
Abstract:
In order to ensure the structure safety of lower body equipment for high-speed train, based on the simulation calculation method of vibration response tolerance and the Von Mises stress yield criterion, the vibration response capacities of high-speed train traction transformer under linear and nonlinear suspension stiffnesses were studied by using finite element simulation model. The longitudinal, horizontal and vertical loads were simultaneously applied to the traction transformer, and the dangerous node with the maximum response stress was gotten. The longitudinal, horizontal and vertical loads were respectively applied to the traction transformer, and the relationships between the amplitudes of different directions and the six stress components of dangerous node were obtained. Meanwhile, based on the superposition principle, the relationships between the amplitudes of different directions and the stress components of dangerous node under longitudinal, horizontal and vertical loads were obtained. The Von Mises stress function was computed, and the vibration response tolerance was obtained based on the Von Mises stress yield criterion. Analysis result shows that based on the superposition principle, the vibration response tolerance can be simulated and calculated by using MATLAB instead of ANSYS under the linear suspension stiffness. The avertical displacement contour curve is obtained between the vibration response tolerance surfaces under the linear and nonlinear suspension stiffnesses. When the coordinate point formed by the horizontal and longitudinal displacements is below the line projected by the vertical displacement contour curves, the vibration response tolerance of vertical displacement under the linear suspension stiffness is larger than the value under the nonlinear suspension stiffness. When the coordinate point formed by the horizontal and longitudinal displacements is above the line projected by the vertical displacement contour curves, the vibration response tolerance of vertical displacement under the linear suspension stiffness is smaller than the value under nonlinear suspension stiffness. 4 tabs, 9 figs, 20 refs.

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Last Update: 2016-10-20