Study on the Vehicle Dynamic Load Considering the Vehicle-Pavement Coupled Effect

2017 4th International Conference on Advanced Materials, Mechanics and Structural Engineering

材料科学;机械制造

Xu, H.L.^1 ; He, L.^1 ; An, D.^1

School of Civil Engineering, North China University of Technology, Beijing

100144, China^1

关键词: Interaction systems;    Linear elastic model;    Numerical calculation;    Random vibrations;    Resonance vibrations;    Suspension system;    Vehicle suspension systems;    Vibration frequency;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/269/1/012001/pdf
DOI  :  10.1088/1757-899X/269/1/012001

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The vibration of vehicle-pavement interaction system is sophisticated random vibration process and the vehicle-pavement coupled effect was not considered in the previous study. A new linear elastic model of the vehicle-pavement coupled system was established in the paper. The new model was verified with field measurement which could reflect the real vibration between vehicle and pavement. Using the new model, the study on the vehicle dynamic load considering the vehicle-pavement coupled effect showed that random forces (centralization) between vehicle and pavement were influenced largely by vehicle-pavement coupled effect. Numerical calculation indicated that the maximum of random forces in coupled model was 2.4 times than that in uncoupled model. Inquiring the reason, it was found that the main vibration frequency of the vehicle non-suspension system was similar with that of the vehicle suspension system in the coupled model and the resonance vibration lead to vehicle dynamic load increase significantly.