Analysis of Dynamic Load Level of High-Speed Heavy Vehicle Imposed on Uneven Pavement
Based on the significant destructive effect of heavy vehicle on uneven roads, two simplified models of pavement unevenness and vehicle dynamic load were established in accordance with D'A lembert principle, and Matlab software was used to analyze the changing law of dynamic load under the conditions of different road unevenness, vehicle speed and load. The results show that vehicles running on uneven road may produce more cumulative damages than static load, and DLC (dynamic load coefficient) changes in wide range, maximum up to 2.0 or more; the effect of speed and load on dynamic load is complex, and due to multi-factor interaction, DLC doesn’t consistently increase or decrease with speed and load increasing. Although the dynamic load level caused by high-speed heavy vehicle is not necessarily too high, its impact on the road can not be ignored.
G. H. Guo et al., "Analysis of Dynamic Load Level of High-Speed Heavy Vehicle Imposed on Uneven Pavement", Applied Mechanics and Materials, Vols. 138-139, pp. 146-152, 2012