Random vibration first-passage problem of vehicle based on semi-active suspension system
In this paper, a new research for semi-active suspension system of vehicle is proposed. Assuming the stochastic excitations are Gauss white noises, we establish a stochastic model on semi-active suspension system. The Hamilton function had been described as one dimension diffusion process by using stochastic average method, the global stability conditions had also been obtained by judging the modality of the singular boundary; the backward Kolmogorov equation for reliability function and the generalized Pontryagin equation for conditional moment of the first-passage time had been established, the numerical results were given in virtue of figures according to the classification of boundary conditions and initial conditions of these two equations. At last, the influence of first-passage on system had been analyzed based on the figures.
Semi-Active Suspension stochastic stability reliability function first-passage
Jia Xu Hong-Li Wang Gen Ge
School of Mechanical Engineering, Tianjin University, Tianjin 300072, P.R.China
国际会议
北京
英文
1-4
2008-10-23（万方平台首次上网日期，不代表论文的发表时间）