An Aerothermal Flexible Mode Analysis of a Hypersonic Vehicle (Postprint)

Abstract

This paper describes a method for the determination of the flexible modes of an air-breathing hypersonic vehicle. The method outlined here takes into account changes in vehicle mass and structural temperature over the duration of the vehicle's trajectory. A simple sizing program is outlined to estimate the vehicle volume, mass, and planform requirements for a dual-cycle (rocket and scramjet) powered vehicle. It is shown that the varying mass effects dominate the frequencies and mode-shapes over the structural heating effects. We then discuss the effects of the structural modes on the transmission zeros.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 2006
Accession Number
ADA462017

Entities

People

  • David B. Bowman
  • Michael A. Bolender
  • Oscar Morataya
  • Trevor Williams

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Breathing
  • Air Force Research Laboratories
  • Aircrafts
  • Airframes
  • Chebyshev Polynomials
  • Control Surfaces
  • Engines
  • Finite Element Analysis
  • Frequency
  • Hypersonic Aircraft
  • Hypersonic Vehicles
  • Mach Number
  • Pressure Distribution
  • Prompt Global Strike
  • Propulsion Systems
  • Supersonic Combustion Ramjet Engines
  • Trajectories

Fields of Study

  • Physics

Readers

  • Control Systems Engineering.
  • Missile Defense Systems.
  • Structural Dynamics.

Technology Areas

  • Hypersonics