Study on Geometry Filtering Phenomenon and Flexible Car Body Resonant Vibration of Articulated Trains

Dao Gong; Yue Jia Gu; Jin Song Zhou

doi:10.4028/www.scientific.net/AMR.787.542

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 787Study on Geometry Filtering Phenomenon and...

Study on Geometry Filtering Phenomenon and Flexible Car Body Resonant Vibration of Articulated Trains

Abstract:

A vertical rigid-flexible coupling dynamic model of three articulated vehicles with car body flexibility is established, Green functions are utilized to solve the partial differential equation of each car body, and the mechanism of car body flexible resonance is analyzed. Results show that geometry filtering phenomenon exists in articulated train, when the car body first vertical bending frequency coincides with the frequencies which have the peak values of car body bounce acceleration transmissibility, resonant vibration of flexible car body will happen; The energy of track irregularity decreases rapidly with the increasing frequency, so it is important to avoid the car body resonance at low frequency; If the first vertical bending frequency of car body is greater than a certain value, the flexible resonance will have little effect on the ride quality.

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Periodical:

Advanced Materials Research (Volume 787)

Pages:

542-547

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.787.542

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Online since:

September 2013

Authors:

Dao Gong, Yue Jia Gu, Jin Song Zhou

Keywords:

Articulated Trains, Flexible Car Body, Geometry Filtering Phenomenon, Green Function

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