On modeling and damage detection methodologies in rotor systems

R Abdul Nasar, T Alzarooni, MA AL-Shudeifat - Nonlinear Dynamics, 2024 - Springer
Damages in rotor systems have severe impact on their functionality, safety, running
durability and their industrial productivity, which usually leads to unavoidable economical …

Modelling and analysis of a cracked rotor: a review of the literature and its implications

N Kushwaha, VN Patel - Archive of Applied Mechanics, 2020 - Springer
Timely detection of fatigue cracks is necessary to avoid catastrophic failure of rotating
machines which can lead to economical losses and accidental risk. This paper presents an …

New backward whirl phenomena in intact and cracked rotor systems

MA AL-Shudeifat - Journal of Sound and Vibration, 2019 - Elsevier
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 …

Study on vibration response and orbits of misaligned rigid rotors connected by hexangular flexible coupling

Y Xia, J Pang, L Yang, Q Zhao, X Yang - Applied Acoustics, 2019 - Elsevier
This paper analyzes the deformation of a hexangular flexible coupling connecting two rigid
rotors which have angular and parallel misalignment and calculates the dynamic reaction …

Applications of higher-order frequency response functions to the detection and damage assessment of general structural systems with breathing cracks

RM Lin, TY Ng - International Journal of Mechanical Sciences, 2018 - Elsevier
Two types of cracks are often encountered in engineering structural systems and these are
the open cracks and the breathing cracks. Existence of open cracks often leads to the loss of …

Detection of rotor cracks: comparison of an old model-based approach with a new signal-based approach

D Soeffker, C Wei, S Wolff, MS Saadawia - Nonlinear Dynamics, 2016 - Springer
The detection of shaft cracks within operating rotors is an old subject of scientific research.
Several signal-and model-based approaches are developed. Here two approaches used for …

Rotordynamic analysis using the Complex Transfer Matrix: An application to elastomer supports using the viscoelastic correspondence principle

P Varney, I Green - Journal of Sound and Vibration, 2014 - Elsevier
Numerous methods are available to calculate rotordynamic whirl frequencies, including
analytic methods, finite element analysis, and the transfer matrix method. The typical real …

[PDF][PDF] 非线性共振及其计算和应用

侯磊, 陈予恕 - 机械工程学报, 2019 - qikan.cmes.org
通过总结非线性动力学系统现有部分成果, 给出了非线性共振的含义及其计算方法.
结合课题组在航空发动机转子系统非线性动力学研究领域的部分研究成果 …

Three-dimensional strains in human posterior sclera using ultrasound speckle tracking

E Pavlatos, BC Perez, HJ Morris… - Journal of …, 2016 - asmedigitalcollection.asme.org
Intraocular pressure (IOP) induced strains in the peripapillary sclera may play a role in
glaucoma progression. Using inflation testing and ultrasound speckle tracking, the 3D …

Modelling, detection and identification of flexural crack damages in beams using frequency response functions

RM Lin - Meccanica, 2016 - Springer
In this paper, the original receptance method first proposed by Bishop (The mechanics of
vibration. Cambridge University Press, Cambridge, 1979) is further generalized and …