Cx. Mao et Qh. Qin, COUPLED TORSIONAL-FLEXURAL VIBRATION OF SHAFT SYSTEMS IN MECHANICAL-ENGINEERING .2. FE-TM IMPEDANCE COUPLING METHOD, Computers & structures, 58(4), 1996, pp. 845-849
A new approach is developed for calculating the dynamic response of mu
lti-spool rotor systems with several intershaft bearings using the com
bined methodologies of the finite element method (FEM), transfer matri
ces (TM) and impedance methods. The approach makes use of FEM to model
shaft elements and then transforms the system properties to transfer
matrix mode. The intershaft bearings are treated by the impedance meth
od. It combines the advantages of these three methods. Some numerical
examples are considered to check the viability of the method.