For the complex rotor system, included several rotors with many units, such computations are highly laborious. The efficient algorithms, provided solution of the problem in the limited time are as a rule based on the representation of rotors as distributed 1-D systems with equivalent elastic and inertial characteristics. For such approach the accuracy of solution sufficiently depends on the correctness of rotor sections parameters determination. Sometimes punctual account of geometric and mass properties of rotor elements does not provide satisfactory results. In such cases, for example, when high eigenmodes are influenced on vibration, it is necessary to consider 3-D effects.
Present paper is devoted to development of such approach.
It contains description of the algorithm, consideration of some important particular cases and examples of computation for turboset rotor systems.