An Exposition on Aircraft Response to Atmospheric Turbulence Using Power Spectral Density Analysis Techniques

Abstract

The traditional power spectral density design procedure is reviewed. The evolution of modeling atmospheric turbulence is traced from the discrete gust to the present continuous representation. The modeling of an aircraft structure as a lumped parameter linear system excited by oscillatory air forces is outlined, and solutions to the resulting equations of motion are indicated. Expressions for the number of exceedances of specified load levels are presented and compared for stationary Gaussian turbulence and for stationary Gaussian patch turbulence. The motivation for modeling atmospheric turbulence as a nonstationary process is addressed, and several models for nonstationary turbulence are reviewed.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1977
Accession Number
ADA046108

Entities

People

  • Elijah W. Turner

Organizations

  • Flight Dynamics Laboratory

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Aircrafts
  • Airframes
  • Atmospheric Motion
  • Boundary Layer
  • Commercial Aircraft
  • Computational Fluid Dynamics
  • Computational Science
  • Convection
  • Coordinate Systems
  • Differential Equations
  • Equations Of Motion
  • Gaussian Processes
  • Military Aircraft
  • Three Dimensional
  • Transport Aircraft
  • Turbulence
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Computational Fluid Dynamics (CFD)
  • Theoretical Analysis.