LF-2 LIGHTWEIGHT LIFT FAN FRONT FRAME DESIGN

Abstract

The design, the manufacturing problems and their solutions, and the limited testing of a new bolted component assembled lightweight front frame for a tip turbine lift fan are discussed. This new frame was necessary for compatibility with a new lightweight improved critical speed response rotor design and to replace the present X353-5B front frame which is used in the General Electric Company's XV-5A Lift Fan Flight Research Program with a lighter weight and lower cost unit. The functions, description, design considerations, and stresses are discussed for each component. The frame component weights as calculated have been tabulated, and a comparison of the summation of the component calculated weights of 99.6 pounds versus the actual pan weight of 103 pounds is discussed. The frame was tested to 100-percent rotor speed loading as a component part of the LF-2 lift fan assembly. Limited operating data were obtained because of test termination resulting from turbine bucket shroud damage.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1966
Accession Number
AD0634104

Entities

Organizations

  • General Electric

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Army Aviation
  • Bending Stress
  • Corrosion Resistance
  • Fabrication
  • Heat Treatment
  • Joints
  • Laminated Glass
  • Laminates
  • Manufacturing
  • Materials
  • Mechanical Properties
  • Mechanical Working
  • Modulus Of Elasticity
  • Reduction Of Area
  • Tensile Properties
  • Test And Evaluation
  • Welds

Readers

  • Aerodynamics.
  • Aerospace Test and Evaluation
  • Explosive Engineering.