A Reduced-Order Modeling Framework for Simulating Signatures of
Faults in a Bladed Disk 01-16-01-0006
This also appears in
SAE International Journal of Aerospace-V132-1EJ
This article reports a reduced-order modeling framework of bladed disks on a
rotating shaft to simulate the vibration signature of faults in different
components, aiming toward simulated data-driven machine learning. We have
employed lumped and one-dimensional analytical models of the subcomponents for
better insight into the complex dynamic response. The framework addresses some
of the challenges encountered in analyzing and optimizing fault detection and
identification schemes for health monitoring of aeroengines and other rotating
machinery. We model the bladed disks and shafts by combining lumped elements and
one-dimensional finite elements, leading to a coupled system. The simulation
results are in good agreement with previously published data. We model and
analyze the cracks in a blade with their effective reduced stiffness
approximation. Different types of faults are modeled, including cracks in the
blades of a single- and two-stage bladed disks, Fan Blade Off (FBO), and Foreign
Object Damage (FOD). We have applied aeroengine operational load conditions to
simulate realistic scenarios of online health monitoring. The proposed
reduced-order simulation framework will have applications in probabilistic
signal modeling, machine learning toward fault signature identification, and
parameter estimation with measured vibration signals.
Citation: Singh, D., Agrawal, A., and Roy Mahapatra, D., "A Reduced-Order Modeling Framework for Simulating Signatures of Faults in a Bladed Disk," SAE Int. J. Aerosp. 16(1):87-108, 2023, https://doi.org/10.4271/01-16-01-0006. Download Citation
Author(s):
Divya Shyam Singh, Atul Agrawal, Debiprosad Roy Mahapatra
Affiliated:
Indian Institute of Sciences, Aerospace Engineering, India, Technical University of Munich, Germany
Pages: 22
ISSN:
1946-3855
e-ISSN:
1946-3901
Related Topics:
Machine learning
Fault detection
Finite element analysis
Simulation and modeling
Fans
Optimization
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