Interval-based optimization of aircraft wings under landing loads

Luna Majumder, S. S. Rao

Research output: Contribution to journalArticlepeer-review

22 Scopus citations

Abstract

An interval-based automated optimization of aircraft wing structures subjected to landing loads is discussed in this paper. The interaction between landing gear and flexible airplane structure is considered as a coupled system. The uncertain system parameters are described as interval numbers. The computational aspects of the optimization procedure are illustrated with two examples - symmetric double-wedge airfoil, and supersonic airplane wing. Since, in most cases only the ranges of uncertain parameters are known with their probability distribution functions unknown, the present methodology is expected to be more realistic for the optimum design of aircraft structures under landing loads.

Original languageEnglish (US)
Pages (from-to)225-235
Number of pages11
JournalComputers and Structures
Volume87
Issue number3-4
DOIs
StatePublished - Feb 2009

Keywords

  • Deterministic optimization
  • Interval optimization
  • Interval parameter
  • Stochastic optimization
  • Truncation method

ASJC Scopus subject areas

  • Computer Science Applications
  • Civil and Structural Engineering
  • Mechanical Engineering
  • Modeling and Simulation
  • Materials Science(all)

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