CRITICAL SPEEDS WHE N A FORCE LOAD IS MO VING ALO NG A RECTA NGULAR PLATE OF INFI NITE LE NGTH AND FREEL Y SUPPORTED AT THE EDGES.

A technique for determining a package of critical velocities in the case of a force load moving along a rectangular plate of infinite length, freely supported along the edges on an elastic base, is considered. The solution is constructed both using a wave approach to solving the problem and using the results of applying integral transformations for the case of steady motion of an oscillatory system when a force load is moving. Obtaining a solution for a system with airfield strip parameters is considered. The results of determining deflections and bending moments for a lamellar strip on an elastic Winkler base and without it during the movement of a force load are compared.