Hybrid Probabilistic and Non-Probabilistic Dynamic Analysis of Vehicle-Bridge Interaction System with Uncertainties

Neng Guang Liu; Wei Gao; Chong Ming Song; Nong Zhang

doi:10.4028/www.scientific.net/AMM.553.545

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 553Hybrid Probabilistic and Non-Probabilistic Dynamic...

Hybrid Probabilistic and Non-Probabilistic Dynamic Analysis of Vehicle-Bridge Interaction System with Uncertainties

Abstract:

A hybrid probabilistic interval dynamic analysis of vehicle-bridge interaction system with a mixture of random and interval properties is studied based on finite element analysis framework. A half car model is used to represent a moving vehicle and the bridge is modeled as a simply supported Euler-Bernoulli beam. The vehicle’s parameters are considered as interval variables and the bridge’s parameters are treated as random variables. The mathematical model of vehicle-bridge interaction system is established based on the finite element model. By introducing the random interval perturbation method into the dynamic analysis of vehicle-bride interaction system, the expressions for the mean value and variance of the bridge dynamic response are developed. Examples are used to illustrate the effectiveness of the presented method. The accuracy and effectiveness of the numerical results are verified by a hybrid simulation method combining direct simulations for interval variables and Monte-Carlo simulations for random variables.

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Periodical:

Applied Mechanics and Materials (Volume 553)

Pages:

545-550

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.553.545

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Online since:

May 2014

Authors:

Neng Guang Liu, Wei Gao*, Chong Ming Song, Nong Zhang

Keywords:

Finite Element Model (FEM), Probabilistic Interval Analysis, Random Interval Dynamic Response, Random Interval Perturbation Method, Vehicle-Bridge Interaction System

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