Influence of seismic on the coupled vibration of vehicle-road system
Abstract：The vehicle is simplified as a three dimension vibrating model with thirteen-freedoms. The road is supposed as an Euler Beam on the Kelvin base and divided with beam elements. Based on the force equilibri- um between the road and the tire, the vibrating model of a vehicle-road coupling system considering the trans- verse displacement of the vehicle is presented. Taking the road irregularities as system self-excitation source and a seismic action as an external excitation, the dynamic functions of the vehicle-road coupled system are derived under vertical and transverse earthquake. The functions are solved with the New-mark method. The results show that: the dynamic response of the vehicle-road coupling system depends on the seismic intensity under the model of this paper, seismic intensity will make the vehicle~ safety and riding comfort to decline sig- nificantly, the transverse seismic intensity has a significant impact on the transverse dynamic response of a ve- hicle and the influence on the vertical vibration of a vehicle can be ignorant, and the vertical seismic intensity has a major impact on the vertical vibration of a vehicle and road. However, the influence of the vertical seis- mic intensity on the transverse acceleration of a vehicle is so important that the impact of vertical seismic inten- sity on judging the safety of a vehicle must be considered.
Keywords：vehicle-road systemcoupled vibrationearthquakedynamic respond
Publication Date：2012-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 728-733 )