TY JOUR TI CALCULATION-EXPERIMENTAL METHOD FOR DEFINITION OF LOWEST FREQUENCY IN BENDING VIBRATIONS OF COACH CAR BODY IN VERTICAL PLANE BASED ON IDENTIFICATION OF ITS BENDING STIFFNESS KW rated-experimental method KW bending stiffness KW Bernoulli-Euler beam KW identification KW frequency of bending vibrations JO Bulletin of Bryansk state technical university AU Skachkov, A.N. AU Vasilevskiy, V.V. AU Yuhnevskiy, A.A. PY 2020 IS 2020 PB Bryansk State Technical University