Use of the Finite Element Damped Forced Response Strain Energy Distribution for Vibration Reduction.

Abstract

Expressions for the vibratory strain energy distribution using the damped forced response (DFR) are developed. he modes above and below the excitation frequency are analyzed separately. The results are then combined to establish a criteria for structural optimization. A helicopter forward pylon structural model is used to demonstrate the advantages of the DFR strain energy concept for structural vibrational optimization. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1972
Accession Number
AD0751809

Entities

People

  • John J. Sciarra
  • Robert G. Ricks

Organizations

  • Boeing Rotorcraft Systems

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aircrafts
  • Excitation
  • Frequency
  • Frequency Shift
  • Helicopters
  • Military Research
  • Optimization
  • Short Takeoff Aircraft
  • Vehicles
  • Vibration

Fields of Study

  • Physics

Readers

  • Aerodynamics.
  • Robotics and Automation.
  • Statistical inference.