Proposición de un Modelo de Grieta para el Estudio del Comportamiento Dinámico de un Rotor

Abstract

A theoretical analysis and experimental work of the dynamics of a rotorbearing system with a transversely cracked shaft is presented. In orden to model the system for standard finite element software, the stiffness matrix of
a shaft element with an opening/closing crack is derived based on fracture mechanics. A new model for the crack breathing is presented. Some vibrational indicators for diagnosing a shaft crack are determined.