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Cited by 29Bladed Disk Vibration DynamicsTurbomachinery Performance and OptimizationAeroelasticity and Vibration Control

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Dynamic Loading on Turbofan Blades Due to Bird-Strike

Sinha, Sunil K., Turner, Kevin E., Jain, Nitesh·2011·Journal of Engineering for Gas Turbines and Power
DOI 10.1115/1.4004126
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Abstract

In the present paper, a hydrodynamic bird material model made up of water and air mixture is developed, which produces good correlation with the measured strain-gauge test data in a panel test. This parametric bird projectile model is used to generate the time-history of the transient dynamic loads on the turbofan engine blades for different size birds impacting at varying span locations of the fan blade. The problem is formulated in 3D vector dynamics equations using a nonlinear trajectory analysis approach. The analytical derivation captures the physics of the slicing process by considering the incoming bird in the shape of a cylindrical impactor as it comes into contact with the rotating fan blades modeled as a pretwisted plate with a camber. The contact-impact dynamic loading on the airfoil produced during the bird-strike is determined by solving the coupled nonlinear dynamical equations governing the movement of the bird-slice in time-domain using a sixth-order Runge-Kutta technique. The analytically predicted family of load time-history curves enables the blade designer to readily identify the critical impact location for peak dynamic loading condition during the bird-ingestion tests mandated for certification by the regulatory agencies.

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Research works printed but not linked: 43

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Metadata

Authors
Sinha, S. K., Turner, K. E., & Jain, N.
Affiliations
  • General Electric (United States) (US)
  • Bangalore Engineering Center, JFWTC, Whitefield Road, Bangalore-560066, Karnataka, India
ORCID
Jain, Nitesh
Venue
Journal of Engineering for Gas Turbines and Power
Publisher
ASME International
Published
2011-09-01
Volume
133
Issue
12
ISSN
  • 0742-4795 (ISSN-L)
  • 1528-8919
DOI
10.1115/1.4004126
OpenAlex
W1971688810
Cited by
29
References
0
Citations by year
2026: 6 · 2025: 1 · 2024: 2 · 2023: 2 · 2022: 1 · 2021: 5 · 2020: 1 · 2019: 1 · 2018: 2 · 2015: 3 · 2014: 2 · 2013: 1 · 2012: 2
FWCI
4.61
Type
journal article
Language
en
Open access
closed
Locations
Journal of Engineering for Gas Turbines and Power (publishedVersion)
Topics
  • Physical Sciences › Engineering › Mechanical Engineering › Bladed Disk Vibration Dynamics
  • Physical Sciences › Engineering › Aerospace Engineering › Turbomachinery Performance and Optimization
  • Physical Sciences › Engineering › Aerospace Engineering › Aeroelasticity and Vibration Control
Keywords
bird strikes, dynamic loading, air-water mixture, impact location, bird ingestion

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