Automated optimum design of wing structures

A probabilistic approach

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

The optimization of aircraft wing structures is presented by considering the dynamic stresses developed during landing impact and gust load conditions. The random nature of the sinking speed and the forward velocity at the instant of contact is considered in the calculation of landing stresses. The vertical velocity due to gust is treated as a stochastic process for the computation of gust-induced stresses. The optimum designs of a symmetric double wedge airfoil, based on beam type of analysis, and a supersonic airplane wing, based on finite element analysis, are considered to illustrate the procedure. A graphical procedure is used in the case of the double wedge airfoil, and nonlinear programming techniques are used in the case of the supersonic wing, for finding the optimum solutions.

Original languageEnglish
Pages (from-to)799-808
Number of pages10
JournalComputers and Structures
Volume24
Issue number5
DOIs
StatePublished - Jan 1 1986
Externally publishedYes

Fingerprint

Probabilistic Approach
Airfoil
Landing
Wedge
Airfoils
Wind effects
Nonlinear programming
Random processes
Nonlinear Programming
Instant
Aircraft
Stochastic Processes
Vertical
Contact
Finite Element
Finite element method
Optimization
Optimum design

ASJC Scopus subject areas

  • Computer Science Applications
  • Computational Mechanics

Cite this

Automated optimum design of wing structures : A probabilistic approach. / Rao, Singiresu S.

In: Computers and Structures, Vol. 24, No. 5, 01.01.1986, p. 799-808.

Research output: Contribution to journalArticle

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