PREDICTION OF THE ANGULAR VIBRATION OF AIRCRAFT STRUCTURES

Using the Bernoulli-Euler beam as a theoretical model, qualitative relationships have been developed to predict the angular vibration from a prescribed linear vibration response. Based on laboratory and flight test data, the overall accuracy of predictions is within + or - 20% of the angular vibration measurements. Such a prediction capability may be considered very significant in that the prediction schemes are intended only for qualitative purposes. In addition, due to the difficulties in obtaining accurate angular measurements, the present vibration data are limited to a gross confirmation of predictions. (Author)

• Supplemental Notes:
  • Presented at AIAA-AFWAL Mini-Symposium, 25 Mar 76, Air Force Inst. of Tech., Wright-Patterson AFB, Ohio.
• Corporate Authors:

  Air Force Flight Dynamics Laboratory

  Wright-Patterson Air Force Base
  Dayton, OH  United States  45433
• Authors:
  • Lee, Jong Jae
  • Whaley, P W
• Publication Date: 1976-6

Media Info

• Pagination: 34 p.

Subject/Index Terms

• TRT Terms: Accelerometers; Accuracy; Aerodynamic stability; Angular acceleration; Angular velocity; Beams; Flight tests; Forecasting; Fuselages; Laboratory tests; Linearity; Mathematical models; Random vibration; Simulation; Stochastic processes; Structural analysis; Structural mechanics; Vibration
• Uncontrolled Terms: Structural response; Timoshenko beams
• Old TRIS Terms: Angular motion; Beams (Structural); Bernoulli-euler beams
• Subject Areas: Aviation; Data and Information Technology; Vehicles and Equipment;

Filing Info

• Accession Number: 00145695
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: AFFDL-TR-76-56 Final Rpt.
• Files: TRIS
• Created Date: Jan 16 1977 12:00AM