Torsional rotor dynamics - Distribution of inertia and stiffness

This modeling phase is essential in the study of torsional rotor dynamics. It is also delicate, and must be approached with rigor and method. The aim of the following article is to present the various rules to be applied in order to produce a model representative of the torsional behavior of the installation under study.

This article is part of a series on torsional rotor dynamics:

• BM 5 120 Introduction ;

• BM 5 121 Types of permanent excitations ;

• BM 5 122 Inertia and stiffness distribution ;

• BM 5 123 Analysis of operating conditions ;

• BM 5 124 Study of torsion dampers.