Dynamic aeroelastic tailoring of a strut braced wing including fatigue loads

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Abstract

High aspect ratio strut braced aircraft can significantly reduce the induced drag. The inherent anisotropic behaviour of the composite material along with their weight saving potential can improve the performance of the aircraft during the flight. Thus, a composite strut braced aircraft is one of the promising candidates to achieve the targets set by the European Commission in Flightpath 2050 report. In their previous works, authors have developed methodologies to include gust loads using a reduced order model and account for fatigue loads through an analytical model. In this paper, previously developed methodologies are used, to carry out a stiffness and thickness optimization of a composite strut braced wing which includes critical gust loads as well as fatigue loads. The results show that a composite strut braced wing is sized by both dynamic as well as static load cases. Additionally, by accounting for fatigue through analytical model instead of a knockdown factor, a lighter wing can be obtained.

Original languageEnglish
Title of host publication18th International Forum on Aeroelasticity and Structural Dynamics June 10-13, 2019
Subtitle of host publicationFinal paper/presentation agenda
Number of pages17
Publication statusPublished - 2019
EventIFASD 2019: International Forum on Aeroelasticity and Structural Dynamics 2019 - Westin Savannah Harbor Resort, Savannah, United States
Duration: 10 Jun 201913 Jun 2019
Conference number: 18
http://ifasd2019.utcdayton.com/

Conference

ConferenceIFASD 2019: International Forum on Aeroelasticity and Structural Dynamics 2019
Abbreviated titleIFASD 2019
CountryUnited States
CitySavannah
Period10/06/1913/06/19
Internet address

Keywords

  • Aeroelasticity
  • Fatigue Loads
  • Gust loads
  • Structural Optimization
  • Strut Braced Wing

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