Parametric studies of flutter speed in a strut-braced wing

Erwin Sulaeman, Rakesh K. Kapania, Raphael T. Haftka

Research output: Contribution to journalConference articlepeer-review

25 Citations (Scopus)

Abstract

Previous investigations on a strut-braced wing analysis revealed that aeroelasticity plays an important role on the strut-braced wing design. The investigations showed that the location of the strut support on the wing affects the wing deformation and aerodynamic load redistribution. In the present work, a further investigation on the effect of the strut location on flutter and divergence speeds of the strut-braced wing is presented. To model the wing box structure, a detailed finite element model, consisting of wing skin, spar, and web, is used. The flutter calculation was performed using NASTRAN. Variation of several parameters, including strut location along the wing spanwise and chordwise directions, were investigated. Comparison between the flutter boundary and flight envelope of the present strut braced wing design indicates that the flutter speed is higher than the design requirement.

Original languageEnglish
Pages (from-to)2287-2297
Number of pages11
JournalCollection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
Volume4
Publication statusPublished - 2002
Externally publishedYes
Event43rd Structures, Structural Dynamics and Materials Conference - Denver, CO, United States
Duration: Apr 22 2002Apr 25 2002

ASJC Scopus subject areas

  • Architecture
  • General Materials Science
  • Aerospace Engineering
  • Mechanics of Materials
  • Mechanical Engineering

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