Fail-Safe Optimal Design of Structures with Substructuring.

Abstract

The problem of fail-safe structural design is defined. An optimal design formulation for the problem is developed with substructuring. An optimal design algorithm based on the state space gradient projection method is derived. Optimal designs for several cases of an open and closed tail-boom structures for the Army Cobra helicopter are obtained and analyzed. Constraints are imposed on stresses, displacements, buckling, natural frequency and member sizes. A user's manual for a computer program based on the algorithm is also described. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1978
Accession Number
ADA065936

Entities

People

  • A. K. Govil
  • D. T. Nguyen
  • E. J. Haug
  • J. S. Arora

Organizations

  • University of Iowa

Tags

Communities of Interest

  • Air Platforms
  • C4I

DTIC Thesaurus Topics

  • Algorithms
  • Composite Materials
  • Computations
  • Computer Programs
  • Computers
  • Coordinate Systems
  • Data Sets
  • Elastic Properties
  • Engineering
  • Equations
  • Equations Of State
  • Mechanics
  • Modulus Of Elasticity
  • Numbering Systems
  • Resonant Frequency
  • Three Dimensional
  • Two Dimensional

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Aerospace Engineering
  • Structural Dynamics.

Technology Areas

  • Space
  • Space - Spacecraft Maneuvers