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Theoretical research and experimental validation of elastic dynamic load spectra on bogie frame of high-speed train

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Abstract

When a train runs at high speeds, the external exciting frequencies approach the natural frequencies of bogie critical components, thereby inducing strong elastic vibrations. The present international reliability test evaluation standard and design criteria of bogie frames are all based on the quasi-static deformation hypothesis. Structural fatigue damage generated by structural elastic vibrations has not yet been included. In this paper, theoretical research and experimental validation are done on elastic dynamic load spectra on bogie frame of high-speed train. The construction of the load series that correspond to elastic dynamic deformation modes is studied. The simplified form of the load series is obtained. A theory of simplified dynamic load–time histories is then deduced. Measured data from the Beijing–Shanghai Dedicated Passenger Line are introduced to derive the simplified dynamic load–time histories. The simplified dynamic discrete load spectra of bogie frame are established. Based on the damage consistency criterion and a genetic algorithm, damage consistency calibration of the simplified dynamic load spectra is finally performed. The computed result proves that the simplified load series is reasonable. The calibrated damage that corresponds to the elastic dynamic discrete load spectra can cover the actual damage at the operating conditions. The calibrated damage satisfies the safety requirement of damage consistency criterion for bogie frame. This research is helpful for investigating the standardized load spectra of bogie frame of high-speed train.

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Authors and Affiliations

  1. Engineering Research Center of Structure Reliability and Operation Measurement Technology of Rail Guided Vehicles, Ministry of Education, Beijing Jiaotong University, Beijing, 100044, China

    Ning Zhu, Shouguang Sun, Qiang Li & Hua Zou

Authors
  1. Ning Zhu
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  2. Shouguang Sun
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  3. Qiang Li
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  4. Hua Zou
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Corresponding author

Correspondence to Ning Zhu.

Additional information

Supported by National Natural Science Foundation of China (Grant No. U1134201)

ZHU Ning, born in 1982, is currently a PhD candidate at Engineering Research Center of Structure Reliability and Operation Measurement Technology of Rail Guided Vehicles, Ministry of Education, Beijing Jiaotong University, China. His research interests include structural strength and dynamic loads analysis.

SUN Shouguang, born in 1962, is currently a professor at Beijing Jiaotong University, China. He received his PhD degree from Tsinghua University, China, in 1992. His research interests include structural fatigue, fracture and reliability.

LI Qiang, born in 1963, is currently a professor at Beijing Jiaotong University, China. He received his PhD degree from Beijing Jiaotong University, China, in 1995. His research interests include structural fatigue, fracture and reliability.

ZOU Hua, born in 1975, is currently a lecturer at Beijing Jiaotong University, China. He received his master degree from Beijing Jiaotong University, China, in 2000. His research interests include structural strength and experimental research of structural dynamic characteristics.

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Zhu, N., Sun, S., Li, Q. et al. Theoretical research and experimental validation of elastic dynamic load spectra on bogie frame of high-speed train. Chin. J. Mech. Eng. 29, 498–506 (2016). https://doi.org/10.3901/CJME.2016.0308.027

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  • DOI: https://doi.org/10.3901/CJME.2016.0308.027

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