Research on Making Non-Stationary Random Excitation of Automobile Systems Change Into Stationary One

Making non-stationary random excitation in automobile vibration system change into stationary one is that the sample function of random excitation studied is made into a product of two functions, one of which is a definite function, called observation function, the other is stationary random process, called stationary random sample function. This article presented the necessary condition on which the observation function exists and the calculating formula of it, providing a theorems basis for the further research about non-stationary random vibration of automobile systems.