OPTIMUM STRUCTURAL REPRESENTATION IN AERO-ELASTIC ANALYSES

Abstract

An investigation of optimum methods for the mathematical representation of the structure of an airborne vehicle is described. Emphasis was placed on aeroelastic problems associated with stability and control, but the results and conclusions of the study are applicable to any aeroelastic problem. A method is presented whereby the elasticity of he structure is completely and rigorously included while the mass of the structure is expressed in terms of a finite number of normal coordinates of the system. Analog computer investigations of the dynamic response of three typical aircraft configurations ere made using the method described. These analog computer investigations demonstrate the utility of the structural representation presented and also define the approximations which can be made in the representation in terms of the requirements of any particular analysis.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1962
Accession Number
AD0277468

Entities

People

  • Richard H. Macneal
  • Robert G. Schwendler

Tags

Communities of Interest

  • Air Platforms
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aerodynamic Configurations
  • Aerodynamic Forces
  • Aeroelasticity
  • Aircrafts
  • Airframes
  • Analog Computers
  • Computers
  • Control Surfaces
  • Control Systems
  • Dynamic Response
  • Elastic Properties
  • Equations
  • Frequency
  • Mechanics
  • Resonant Frequency
  • Spars
  • Steady State

Fields of Study

  • Physics

Readers

  • Aerodynamics/Aeronautics.
  • Calculus or Mathematical Analysis
  • Robotics and Automation.