TY JOUR TI On the Distribution Law of Dynamic Wheel-Rail Interaction Force KW Vertical dynamic force KW force distribution KW railway track KW gamma distribution KW mixed distribution models KW impact forces KW statistical analysis KW measurement methods JO Proceedings of Petersburg Transport University AU Romanov, A.V. AU Kiselev, A.A. PY 2025 IS 22 PB FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"