Vibration Analysis of a Spinning Disk Using Image Derotated Holographic Interferometry,

Abstract

The present work reports on the application of image derotated holographic interferometry to study the resonant response of a rotating steel disk at speeds up to 8000 RPM. The rotational motion of the disk is optically removed by passing the image of the rotating disk through a prism that is traveling at half the rotational speed of the disk. Off-axis double-pulsed laser holography is then used to record the disk resonant vibratory response. The first five diametrical modes and one of disk imbalance, misalignment of optical and mechanical axes of rotation and system-excited modes of vibration are also addressed. Selected experimental results are compared to those obtained using finite element analysis. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1982
Accession Number
ADP000344

Entities

People

  • J. C. Macbain
  • J. E. Horner
  • J. S. Ogg
  • W. A. Stange

Organizations

  • Air Force Research Laboratory

Tags

DTIC Thesaurus Topics

  • Finite Element Analysis
  • Holography
  • Interferometry
  • Lasers
  • Misalignment
  • Motion
  • Pulsed Lasers
  • Rotation
  • Vibration

Fields of Study

  • Physics

Readers

  • Aerodynamics.
  • Image Processing and Computer Vision.
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).

Technology Areas

  • Directed Energy