METHOD QUASIDIAGONALITY IN THE CALCULATIONS NON-DISSIPATIVE SYSTEMS FINITE NUMBER OF DEGREES OF FREEDOM
The method of calculation of forced vibrations of linear mechanical systems, based on the representation of solutions in the form of two components: static and dynamic solution. Quasistatic solution is determined not from the original equations of motion, and some simplified equations. The dimension of the simplified system is the original dimension of the system. The dynamic solution is only for those mode shapes, natural frequencies which are within the given frequency range external influence that allows you to build dynamic solutions to use the system significantly smaller dimension. As an example, consider the calculation of forced vibrations of single rotor on elastic supports.