Аннотация:We consider a planar cantilever truss, the mass of which is distributed over the nodes. The solution of the problem using the induction method is found in the Maple computer mathematics system. To determine the forces in the rods, the method of cutting out the nodes is used. The main frequency of oscillation is determined by the method of Dunkerley. The error of the obtained dependence is compared with the numerical solution of the problem of the oscillation of the cargo system and turns out to be very small, decreasing to 1% with an increase in the number of panels.