Composite Materials for Hybrid Aerospace Gears

Hybrid steel-composite gears, which combine steel teeth with a fiber-reinforced polymer composite core, are a rapidly emerging technology for weight reduction in aerospace drivetrain systems. However, power transmission gears—and especially the requirement of rotorcraft gearboxes to operate under loss of lubrication—are a very challenging application for composite materials, due to the combination of mechanical and thermal loads. In this work, composite materials, including newly developed hybrid laminates featuring multiple grades of carbon fiber, are fabricated. Mechanical and thermal testing, along with ply-level finite element analysis, are employed to assess the suitability of these composite materials for hybrid aerospace gear applications. Particular focus is given to high-temperature epoxy and bismaleimide resins and to hybrid laminates reinforced by multiple grades of carbon fiber. This hybrid drivetrain technology would manifest significant weight reductions without compromising gear performance.

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Work Title Composite Materials for Hybrid Aerospace Gears
Access
Open Access
Creators
  1. Matthew D. Waller
  2. Sean M. Mcintyre
  3. Kevin L. Koudela
Keyword
  1. Hybrid gear
  2. Composite materials
License In Copyright (Rights Reserved)
Work Type Article
Publisher
  1. Journal of the American Helicopter Society
Publication Date October 1, 2020
Language
  1. English
Publisher Identifier (DOI)
  1. https://doi.org/10.4050/JAHS.65.042010
Deposited March 25, 2022

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Version 1
published

  • Created
  • Updated
  • Updated
  • Added Creator Matthew Waller
  • Added Creator Sean Mcintyre
  • Added Creator Kevin Koudela
  • Added JAHS Hybrid Gear.pdf
  • Updated License Show Changes
    License
    • https://rightsstatements.org/page/InC/1.0/
  • Published
  • Updated Keyword, Publisher, Publisher Identifier (DOI), and 2 more Show Changes
    Keyword
    • hybrid gear, composite materials
    • Hybrid gear, Composite materials
    Publisher
    • Journal of the American Helicopter Society
    Publisher Identifier (DOI)
    • 10.4050/JAHS.65.042010
    • https://doi.org/10.4050/JAHS.65.042010
    Related URLs
    • https://www.ingentaconnect.com/content/ahs/jahs/2020/00000065/00000004/art00010
    Publication Date
    • 2020-07
    • 2020-10-01
  • Renamed Creator Matthew D. Waller Show Changes
    • Matthew Waller
    • Matthew D. Waller
  • Renamed Creator Sean M. Mcintyre Show Changes
    • Sean Mcintyre
    • Sean M. Mcintyre
  • Renamed Creator Kevin L. Koudela Show Changes
    • Kevin Koudela
    • Kevin L. Koudela
  • Updated