Two methods to form the matrixes of dynamic rigidities while synthesizing elastic constructions on the method of rigid boundaries using correcting series

New method is proposed to form dynamic rigidity matrix of the elastic construction discrete model for synthesizing the dynamic characteristics of composed construction on the rigid boundary method using correcting series. It is shown that such an approach provides an accuracy of the construction dynamic features’ presentation that corresponds to a twice higher order of the correcting series without calculating additional correcting vectors.