Rail vibration reduction measure service life evaluation method

The invention discloses a track vibration reduction measure service life evaluation method, which comprises the following steps: carrying out probabilistic description on a track source strong vibration frequency division vibration reduction effect of each influence factor, carrying out reliability calculation on a probability density function, introducing a generalized time variable into the probability density function, and fusing the generalized time variable into a joint probability density distribution function to obtain the service life of a track vibration reduction measure. Estimating the time-varying property of the damping effect influence factor or the time-varying property of the damping efficiency degradation, calculating the damping measure probability taking the time factor as the variable and considering the time-varying, and then carrying out iterative calculation to finally obtain the critical life meeting the damping effect. According to the method, a generalized time variable is introduced