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Low speed flutter and post-critical behaviour of flat plate and NACA0018 section models in a wind tunnel
https://jaxa.repo.nii.ac.jp/records/3441
https://jaxa.repo.nii.ac.jp/records/344127aead9f-73eb-4989-8fc1-55d0353229b5
名前 / ファイル | ライセンス | アクション |
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AA1630046048.pdf (1.8 MB)
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Item type | 会議発表論文 / Conference Paper(1) | |||||
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公開日 | 2017-04-27 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Low speed flutter and post-critical behaviour of flat plate and NACA0018 section models in a wind tunnel | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | low speed flutter | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | limit cycle oscillation | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | nonlinear aeroelasticity | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | stall flutter | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | wind tunnel | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_5794 | |||||
資源タイプ | conference paper | |||||
著者 |
Amandolese, Xavier
× Amandolese, Xavier |
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著者所属(英) | ||||||
en | ||||||
Ecole Polytechnique : Centre national de la recherche scientifique (CNRS) : Conservatoire National des Arts et Metiers (CNAM) | ||||||
出版者 | ||||||
出版者 | 宇宙航空研究開発機構(JAXA) | |||||
出版者(英) | ||||||
出版者 | Japan Aerospace Exploration Agency (JAXA) | |||||
書誌情報 |
宇宙航空研究開発機構特別資料 en : JAXA Special Publication: Proceedings of the First International Symposium on Flutter and its Application 巻 JAXA-SP-16-008E, p. 447-455, 発行日 2017-03-15 |
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会議概要(会議名, 開催地, 会期, 主催者等)(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | First International Symposium on Flutter and its Application (May 15-17, 2016. Mielparque-tokyo), Minato-ku, Tokyo, Japan | |||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | This paper explores the post-critical behaviour of two-degree-of-freedom flat plate and NACA0018 section model undergoing coupled-mode flutter in a wind tunnel. Tests are performed at moderate Reynolds number Re approximately 1 - 8×10(exp 4) using an aeroelastic set-up that enables high amplitude pitch-plunge motion without nonlinear structural limitations. For both models, two aeroelastic configurations have been studied: for a centre of rotation at the first quarter chord and for a centre of rotation at the mid-chord. Each configuration exhibits self-limited oscillations du to nonlinear aerodynamics saturation beyond the critical velocity. However, limit cycle oscillations (LCOs) evolution versus the reduced velocity highlight strong different behaviours between the flat plate and the NACA0018 model, along with a significant impact of the position of the elastic center. For the flat plate model two LCOs branches have been found in the post-critical regime. The first one is reached increasing the velocity beyond the coupled-mode flutter critical velocity and the second one occurs when the LCOs amplitude in pitch enter the stall region. This second LCO branch is then associated to a symmetric stall flutter regime. For the flat plate model the switch to symmetric stall flutter has only been observed for the configuration with the elastic axis at the mid-chord. For the NACA0018 model two LCOs branches have also been observed but the dynamical responses are also significantly impacted by a pure pitch instability that can be attributed to the motion-induced dynamics of a laminar separation bubble at moderate Reynolds number. | |||||
内容記述 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 形態: 図版あり | |||||
内容記述(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Physical characteristics: Original contains illustrations | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1349-113X | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA11984031 | |||||
資料番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 資料番号: AA1630046048 | |||||
レポート番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | レポート番号: JAXA-SP-16-008E |