The computation of torsional, dynamic stresses

Abstract

The torsional dynamics of spatially dispersed, mechanical, power transmission system models are considered. Distributed—lumped parameter modelling methods are employed in the analysis of configurations comprising rotors, bearings, and relatively slender shaft arrangements. Analysis procedures enabling the computation of the torsional shear stress and velocity response of these drive systems are outlined and block diagram representations are formulated. The transient characteristics for shaft—rotor arrangements following deterministic input changes are computed. Typical rotor—shaft assemblies are investigated, illustrating thereby the procedures involved. Graphical results and comparative studies are presented and the generality of the techniques detailed is commented upon.