Dynamic Simulation and Analysis of Vehicle-Bridge Coupled System with Foundation Unequal Settlement
ZHU Huai-liang1,2 FANG Ying-dong2 XIE Yan2 Wang Xue2
1. Department of Mechanics, Shanghai University, Shanghai 200444, China2. Shanghai Institute of Applied Mathematics & Mechanics, Shanghai 200072, China
Abstract：The dynamic model was presented for the vehicle-bridge coupled system with unequal settlement of foundation. The rail irregularity caused by local subsidence was proposed using the Fourier series model. Dynamic equations were derived for the vehicle-bridge coupled system with longitudinal forces based on D’Alembert’s principle and the assumed mode method. The numerical results were obtained and dynamic responses of system were discussed caused by longitudinal forces, speeds of vehicle and the value of local subsidence respectively. It is shown that there would be a big change in amplitude of vibration or a shock occurring with the increase of value of unequal settlement. In addition, the influence of longitudinal forces on vibration response of system is not neglected in many cases.
朱怀亮;方英东;谢严;王雪. 基础不均匀沉陷诱发车-桥耦合动力学建模与分析[J]. , 2012, 31(18): 107-110.
ZHU Huai-liang; FANG Ying-dong XIE Yan Wang Xue . Dynamic Simulation and Analysis of Vehicle-Bridge Coupled System with Foundation Unequal Settlement. , 2012, 31(18): 107-110.
2012, Vol. 31 
