増速中の擾乱気流による非定常不規則応答からダイバージエンスとフラッタ限界の推定

Material type: 文書・図像類

Author: 安藤, 泰勝ほか

Publisher: 航空宇宙技術研究所

Publication date: 1986-02

Material Format: Digital

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Note (General)：: A locally stationary process method for predicting the flutter and divergence boundaries is presented. The method was applied to response signals of w...

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Material Type: 文書・図像類
Title: 増速中の擾乱気流による非定常不規則応答からダイバージエンスとフラッタ限界の推定
Author/Editor: 安藤, 泰勝
松崎, 雄嗣
ANDO, Yasukatsu
MATSUZAKI, Yuji
Author Heading: 安藤, 泰勝
松崎, 雄嗣
ANDO, Yasukatsu
MATSUZAKI, Yuji
Publication, Distribution, etc.: 航空宇宙技術研究所
Publication Date: 1986-02
Publication Date (W3CDTF): 1986-02
Alternative Title: Estimation of Divergence and Flutter Boundaries from Locally Stationary Random Responses
Periodical title: 航空宇宙技術研究所報告 = Technical Report of National Aerospace Laboratory TR-898
No. or year of volume/issue: 898
Volume: 898
Pages: 13-
ISSN (Periodical Title): ISSN : 0389-4010
Text Language Code: jpn
Target Audience: 一般
Note (General): A locally stationary process method for predicting the flutter and divergence boundaries is presented. The method was applied to response signals of wing models due to flow turbulence measured in subcritical flutter and divergence tests, in which the dynamic pressure was increased at a constant speed with the Mach number being fixed. A long nonstationary response record was divided into many contiguous equally short intervals in which the response was assumed to be locally stationary. The random response was assumed to be represented by the autoregressive process. The parameters of the process were evaluated by Akaike’s automatic estimation procedure. The estimated values of Jury’s stability parameters in each interval are quite scattered. It is shown, however, that the stability boundaries can be predicted by drawing a straight line as the upper side of an envelope for the scattering estimated values of the stability parameters.
資料番号: NALTR0898000
レポート番号: NAL TR-898
Access Restrictions: 限定公開
Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）
https://irdb.nii.ac.jp
Original Data Provider (Database): 宇宙航空研究開発機構 : 宇宙航空研究開発機構リポジトリ