Modal and Local Modal Analysis of High Speed Train Car-Body

Tian Li Chen; Yao Hui Lu; Jing Zeng; Li Min Zhang

doi:10.4028/www.scientific.net/AMM.215-216.800

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 215-216Modal and Local Modal Analysis of High Speed Train...

Modal and Local Modal Analysis of High Speed Train Car-Body

Abstract:

with the speed rising of railway train and the weight lightening of car-body, the frequency range of car-body is widened and the natural frequency is decreased. Especially, the local modes of car-body are caused by suspension device under the car-body bottom, which lead to large vibration response, influence the ride comfort and fatigue failure of structure. In this paper, the whole mode of car-body was analyzed through finite element software. The local mode of car-body bottom and side wall were computed by method of equivalent stiffness constrain. The results show that the local mode of car-body is mainly caused by asymmetry suspension device. The modal analysis method and local modal analysis method adopted in this essay provide the reference and guide the dynamic structural design.

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Periodical:

Applied Mechanics and Materials (Volumes 215-216)

Pages:

800-803

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.215-216.800

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Online since:

November 2012

Authors:

Tian Li Chen*, Yao Hui Lu, Jing Zeng, Li Min Zhang

Keywords:

Equivalent Stiffness, Finite Element Analysis (FEA), High Speed Train Car-Body, Local Mode, Vibration Modal

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