Identification of nonlinear aeroelastic behavior of a wing with pitching and plunging freeplay via higher-order spectra analysis

Michael Candon, Hideaki Ogawa, Robert Carrese, Pier Marzocca

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

4 被引用数 (Scopus)

抄録

Higher-order spectra (HOS) analysis is utilized to analyze the nonlinear utter aspects of the AGARD 445.6 wing with pitching and plunging freeplay nonlinearities installed at the root. High-fidelity fluid-structure interaction simulations are conducted and the transient responses are monitored at the root and tip of the wing. The transient responses are truncated such that only the static portion of the signal remains and and the HOS are evaluated. The pitching/plunging freeplay ranges of motion and initial setting angle are varied, and the effect on nonlinear interactions and transient response are monitored. It is demonstrated that the presence of pitching freeplay is a major driver in the nonlinear phenomena, that the amplitude of the LCO is highly sensitive to the plunging freeplay range of motion whilst the presence of nonlinear interactions are dependent on interactions between the pitching and plunging freeplay effects. The application of this methodology from a practical perspective includes structural health monitoring, and the ability to identify and mitigate undesirable nonlinear aeroelastic phenomena in the design phase.

本文言語英語
ホスト出版物のタイトル57th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference
出版社American Institute of Aeronautics and Astronautics Inc, AIAA
ISBN(印刷版)9781624103926
DOI
出版ステータス出版済み - 2016
外部発表はい
イベント57th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2016 - San Diego, 米国
継続期間: 1 4 20161 8 2016

出版物シリーズ

名前57th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference

会議

会議57th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2016
国/地域米国
CitySan Diego
Period1/4/161/8/16

All Science Journal Classification (ASJC) codes

  • 土木構造工学
  • 建築および建設
  • 建築
  • 材料力学

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