Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
A COMPARISON BETWEEN COMPOSITE ROTORDYNAMICS MODELING THEORIES
Submission Author:
Paulo Costa Porto de Figueiredo Barbosa , MG , Brazil
Co-Authors:
Paulo Costa Porto de Figueiredo Barbosa, Vergílio Torezan Silingardi Del Claro, Aldemir Ap Cavalini Jr, Valder Steffen Jr
Presenter: Paulo Costa Porto de Figueiredo Barbosa
doi://10.26678/ABCM.COBEM2017.COB17-2073
Abstract
Various applications of composite materials have been prominent in recent years, given their many advantages over the equivalent conventional engineering materials counterparts. Following this tendency, rotating machinery in general are now being improved with the substitution of metallic shafts by composite ones, resulting greater operation speeds, lower overall weight and better structural efficiency, among other aspects. In this sense, some models have been proposed for the computational modelling of rotating machinery with composite shafts. A comparison between simplified beam models for composite shafts is presented in this contribution. Also, an experimental validation of the implemented models is carried out in terms of the frequency response functions for the free-free condition. The rotor critical speeds, vibration amplitudes, transient motion, and instability thresholds were numerically determined.
Keywords
shaft, Composite, numerical models
