8I.Le May, A.K.Koul, R.V.Dainty.Fracture mechanisms in a series of locomotive axle failures [ J ] .Materials Characterization, 1991, 26 (4) : 235- 251.
9[印]N.C.尼格姆.随机振动理论[M].上海:上海交通大学出版社,1985.
10Hitoshi Tsunashima. Condition Monitoring and Fault Detection of Railway Vehicle Suspension using Multiple- Model Approach [Z] .2007.