ジェットエンジン低騒音化の研究: 第二報JR100H-1Pを用いたジェットエンジン消音の研究

Material type: 文書・図像類

Author: 鳥崎, 忠雄ほか

Publisher: 航空宇宙技術研究所

Publication date: 1975-01

Material Format: Digital

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Note (General)：: Five acoustically treated inlet-duct configurations and one acoutically treated jet pipe were fabricated, tested and evaluated. Far-field sound pressu...

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Material Type: 文書・図像類
Title: ジェットエンジン低騒音化の研究: 第二報JR100H-1Pを用いたジェットエンジン消音の研究
Author/Editor: 鳥崎, 忠雄
渡辺, 実
小林, 紘
武田, 克巳
TORISAKI, Tadao
WATANABE, Minoru
KOBAYASHI, Hiroshi
TAKEDA, Katsumi
Author Heading: 鳥崎, 忠雄
渡辺, 実
小林, 紘
武田, 克巳
TORISAKI, Tadao
WATANABE, Minoru
KOBAYASHI, Hiroshi
TAKEDA, Katsumi
Publication, Distribution, etc.: 航空宇宙技術研究所
Publication Date: 1975-01
Publication Date (W3CDTF): 1975-01
Alternative Title: Studies of Turbojet Engine Noise Suppression Part 2-Experimental Study of Jet Engine Noise Suppression with a JR100H-1P Turbojet Engine as the Noise Source
Periodical title: 航空宇宙技術研究所資料 = Technical Memorandum of National Aerospace Laboratory
No. or year of volume/issue: 271
Volume: 271
Pages: 23-
ISSN (Periodical Title): ISSN : 0452-2982
Text Language Code: jpn
Target Audience: 一般
Note (General): Five acoustically treated inlet-duct configurations and one acoutically treated jet pipe were fabricated, tested and evaluated. Far-field sound pressure levels (at a distance of SOm from the engine) andengine performance data were obtained to evaluate the performance of the test configurations. Sound power attenuation spectra for treated inlet-duct configurations were shown by an insertion loss technique. For frequencies above peak, the observed attenuations were more than predicted. The effects of SjA (the ratio of treated surface area to duct cross sectional area) on sound powei attenuation were also presented for one-third octave band center frequency 4KHz. The increase of a noise floor due to forward radiated jet noise was observed with the increase of the engine speeds. The performance of the treated jet pipe could not be evaluated by one-third octave band analysis adopted here.
資料番号: NALTM0271000
レポート番号: NAL TM-271
Source: https://jaxa.repo.nii.ac.jp/?action=repository_action_common_download&item_id=43854&item_no=1&attribute_id=31&file_no=1
https://jaxa.repo.nii.ac.jp/?action=repository_action_common_download&item_id=43854&item_no=1&attribute_id=31&file_no=1
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