Staggered Solution Procedures for Doubly Asymptotic Fluid-Structure Interaction Analysis.

Abstract

This report examines direct time integration techniques for the transient response analysis of fluid-structure interaction problems treated with the Doubly Asymptotic Approximation. Efficient solution of the equations of motion is achieved by a modular computer implementation in which separate fluid and structure analyzers are interfaced through extrapolation of the coupling terms. Because conventional realization of this technique is handicapped by severe time-increment limitations, a versatile formulation is developed that circumvents such limitations, achieving unconditional stability. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Feb 28, 1978
Accession Number
ADA058305

Entities

People

  • C. A. Felippa
  • J. A. Deruntz
  • K. C. Park

Organizations

  • Lockheed Martin Missiles and Space

Tags

Communities of Interest

  • Energy and Power Technologies
  • Ground and Sea Platforms
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Boundaries
  • Civil Engineering
  • Closed Loop Systems
  • Control Systems
  • Differential Equations
  • Dynamic Response
  • Engineering
  • Equations
  • Equations Of Motion
  • Frequency
  • Mechanics
  • Resonant Frequency
  • Software Development
  • Structural Response
  • Transient Response Analysis
  • War Colleges

Readers

  • Approximation Theory.
  • Computational Fluid Dynamics (CFD)