Synthesis of dynamic features for analytical and discrete models of sub-structures with application of correcting series

Generalised circuit of modal synthesis for dynamic features of elastic sub- structures represented by analytical models is described. The circuit is based on using the correcting series for the unlimited increase of precision for obtained features of complicated system in restricted frequency range. The circuit combines notions of synthesis according to the fixed and free boundaries method, as hybrid procedure. The circuit allows to supplement the developed program complexes of modal synthesis for discrete models of sub-structures, with blocks providing the inclusion of modules described by differential equation set, into the complicated structure. Model of flexural vibrations of the rod included in the system by connecting its end nodes, is analysed as an example.