Abstract

In this paper the problem of the construction of numerical models of different complication using simple-profile bars of the suport structure of the laboratory rotor are considered. The presence in the structure of the thin-walled elements of the opened profile (double-T shape element), for which the Saint-Venant principle is not applicable and deformation of the cross-section takes place, does not allow to carry out the simple change of such elements to seperate bars. For the adequate description of the double-T shape elements deformation they are modeled by bar frame structures. Results of calculations by proposed method of forced vibrations of the all rotor support structures.