Performances of conventional fiber reinforced composites are challenged in
thermomechanical loading, when development of interlaminar stresses at the interface …

Damages in rotor systems have severe impact on their functionality, safety, running
durability and their industrial productivity, which usually leads to unavoidable economical …

Rotor crack occurs frequently in rotating machinery. It is of great significance to study the
vibration mechanisms of the cracked rotor-bearing system, which can provide proofs for …

This paper proposes an FEA method to study the vibration and wave propagation in
functionally graded material (FGM) beams with multiple inclined cracks by introducing the …

In this paper, a dual-rotor system with five-point support is established, considering the
nonlinearity of the inter-shaft bearing. Based on the full-spectrum analysis theory, the …

Cracks are the major cause for failure and dynamic fracture in different mechanical systems.
For this reason, in this study, a comprehensive study on dynamic behavior of bi-directional …

Based on several published studies and relevant Campbell diagrams, it is well known that
the passage through the critical backward whirl (BW) rotational speeds in rotor systems …

Certain heavy-duty industrial machinery uses vertical rotating shafts. Such rotating systems
typically undergo transient operation phases to reach their nominal speeds; recurrent …

This paper studies the free vibration of an axially functionally graded beam spinning with
constant angular speed about its longitudinal axis. Material properties of the beam are …

In this work, a procedure to obtain an accurate value of the critical speed of a cracked shaft
is presented. The method is based on the transversal displacements of the cracked section …