Method and system for evaluating fatigue life of rubber outer windshield of railway vehicle

The invention discloses a railway vehicle rubber outer windshield fatigue life evaluation method and system. The method comprises the steps that the material density and a stress-strain curve of a railway vehicle rubber outer windshield are acquired; the center coordinate value of the bogie when the railway vehicle passes through the curves with different radiuses is calculated and serves as the displacement load of the outer windshield; on the basis of the data, the maximum strain value generated by the outer windshield under different curve working conditions is obtained through finite element simulation analysis; according to the maximum strain values generated under the different curve working conditions and the strain-life relational expression, obtained through fitting, of the outer windshield rubber material, the corresponding life values under the different curve working conditions are obtained. According to the method, the working condition of curve operation of the railway vehicle is simulated throu