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Stochastic dynamic analysis of vehicle-bridge coupled systems with nonlinear Hertz contacts by explicit time-domain method.
- Source :
-
Vehicle System Dynamics . May2022, Vol. 60 Issue 5, p1579-1601. 23p. - Publication Year :
- 2022
-
Abstract
- Vibration analysis of vehicle-bridge coupled systems has received considerable attentions over the past two decades. This work is dedicated to the stochastic dynamic analysis of vehicle-bridge coupled systems with nonlinear Hertz wheel-rail contacts subjected to random track irregularities. An explicit time-domain method (ETDM) is proposed for efficient nonlinear dynamic analysis of vehicle-bridge coupled systems with a dimension-reduced iteration scheme focusing on the nonlinear wheel-rail contact forces. The high-efficient ETDM is further utilised to implement the numerous nonlinear dynamic analyses required in the Monte-Carlo simulation (MCS) for obtaining the response statistics of the vehicle-bridge coupled systems. A numerical example involving a single-wheel vehicle traversing a simply-supported beam with nonlinear Hertz wheel-rail contacts considering random track irregularities is presented to demonstrate the computational accuracy and efficiency of the proposed method, and an engineering application involving a four-wheel vehicle moving across the Egongyan suspension bridge is further analysed to indicate the effectiveness of the proposed method for large-scale engineering problems. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00423114
- Volume :
- 60
- Issue :
- 5
- Database :
- Academic Search Index
- Journal :
- Vehicle System Dynamics
- Publication Type :
- Academic Journal
- Accession number :
- 156709258
- Full Text :
- https://doi.org/10.1080/00423114.2020.1864418