研究者詳細 - 平木　講儒

論文 - 平木　講儒

分割表示78 件中 41 - 60 件目／全件表示 >>

Self-Excited Oscillation of Blunt Bodies in Transonic Flow 査読有り

Koju Hiraki,　Harald Kleine,Kenji Mishima,Hirotaka Maruyama,Kazuya Kitamura,Tetsuya Hayashida,Jun Yonai,Hideaki Kusano

The 29th International Congress on High-Speed Imaging and Photonics 2010年09月

Separated Flow around a rotating Gyroball 査読有り

Koju Hiraki,Kota Ishitsu,Keisuke Yamada

14th International Symposium on Flow Visualization 2010年06月

The efficient-flight of four-wing ornithopter 査読有り

Hiraki K., Fujii K., Naoki O.

Proceedings of 2010 Asia-Pacific International Symposium on Aerospace Technology, APISAT 2010 95 - 98 2010年01月

記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）

Inspired by a dragonfly, which sometimes appears to quit wing-beating, a possibility of a flight with either fore-wing or hind-wing beating of our four-winged flapping vehicle was pursued, in order to achieve the more efficient flight. The wind-tunnel tests were carried out to determine which wing was appropriate to quit, by measuring the lift force on the fixed wing, which was placed in front of or behind the flapping wing. It revealed that the generated lift on the fixed fore-wing showed the dependency inversely to the flapping of the hind-wing. It indicated that the fore-wing is better to fix.

Scopus

その他リンク： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84914099570&origin=inward

Preliminary study and experiments on water landing of the Japanese ISS cargo return vehicle using a ram-air parachute 査読有り

Ito M., Hiraki K.

Proceedings of 2010 Asia-Pacific International Symposium on Aerospace Technology, APISAT 2010 636 - 639 2010年01月

記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）

This paper reports the status of a preliminary study and experiments on a water landing of the Japanese ISS cargo return vehicle using a ram-air parachute. Our final target of the study is to use a ram-air parachute for the future human space transportation system as an autonomous precision gliding and soft land landing technology to predetermined conventional landing sites, such as those in the Japanese islands. The purpose of applying the ram-air parachute to the ISS cargo return vehicle is to demonstrate the feasibility and practicability of a ram-air parachute for a reentry vehicle from space. We also demonstrate the water landing capability as a contingency landing scenario of the future human space transportation system. To compare the characteristics of a gliding water landing by a ram-air parachute with a non-gliding vertical landing, some cases of water landing tests using a miniature model of a ram-air parachute and a capsule were conducted. Using the results of the tests, we confirmed the effects of impact attenuation by gliding landings. In addition, we found that an optimization of a water landing approach using flare control is important to minimize the impact loads during water landings.

Scopus

その他リンク： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84914170678&origin=inward

Particle Damping with Granular Materials for Multi Degree of Freedom System 査読有り

Masanobu Inoue,Isao Yokomichi,Koju Hiraki,Takeharu Tsuruta

2nd International Conference on Vibro-Impact Systems 2010年01月

小型パラフォイルを利用した自律飛行システム査読有り

平木講儒,井上昌信

日本航空宇宙学会誌 57 ( 671 ) 341 - 346 2009年12月

Development of Autonomous Flight Systems with Small Parafoil 査読有り

Koju Hiraki,Masanobu Inoue

20th AIAA Aerodynamic Deceleratory Systems Technology Conference 2009年05月

Flow Instability Induced by Spiked Bodies 査読有り

Koju Hiraki,Harald Kleine,Hirotaka Maruyama,Tetsuya Hayashida,Kazuya Kitamura,Jun Yonai,Takashi Nakajima,Goji Etoh

Proceedings of SPIE: 28th International Congress on High-Speed Imaging and Photonics 7126 71260K.1 - 71260K.8 2009年02月

Reentry Motion and Aerodynamics of the MUSES-C Sample Return Capsule 査読有り

Nobuaki Ishii,Tetsuya Yamada,Koju Hiraki,Yoshifumi Inatani

Transactions of the Japan Society for Aeronautical and Space Sciences 51 ( 172 ) 65 - 70 2008年08月

気球を利用した無重力実験のための機体開発とそのフライト結果査読有り

澤井秀次郎,橋本樹明,坂井真一郎,坂東信尚,小林弘明,藤田和央,吉光徹雄,石川毅彦,稲富裕光,福家英之,鎌田幸男,星野慎二,田島賢一,門岡昇平,上原聡,小島孝之,上野誠也,宮路幸二,坪井伸幸,平木講儒,鈴木宏二郎,松島清穂,中田孝

日本航空宇宙学会論文集 56 ( 654 ) 339 - 346 2008年07月

Cavitation induced by low-speed underwater impact 査読有り

H. Kleine,S. Tepper,K. Takehara,T.G. Etoh,K. Hiraki

International Symposium on Shock Waves 2007年07月

Balloon-Drop Test for Evaluation of Guiding Performance of Small-Parafoil Flight System 査読有り

Koju Hiraki,Koichiro Kawazoe,Takayuki Imoto,Masanobu Inoue

19th AIAA Aerodynamic Decelerator Systems Technology Conference 2007年05月

Visual Determination of the Onset of Irregular Blast Wave Reflection 査読有り

H Kleine,K Hiraki,E Timofeev，K Ohashi,H Maruyama，T Hayashida,J Yonai,K Kitamura,T Nakajima,A Gojani,K Takayama,T Etoh

27th International Congress on High Speed Photography and Photonics 2006年09月

Visualization of the Unsteady Flow Field around Spiked Concave Bodies in Supersonic Flow 査読有り

Koju Hiraki,Harald Kliene,Hirotaka Maruyama,Tetsuya Hayashida,Kazuya Kitamura,Jun Yonai,Takashi Nakajima,Takeharu Etoh

12th International Symposium on Flow Visualization 2006年09月

An Experimental Study of Micro Air Vehicle with Flapping and Feathering Wings by a Single Motor 査読有り

Koju Hiraki,Naofumi Goto,Tsunanori Okubo,Koichiro Kawazoe,Keisuke Yamada,Yasuaki Nishii,Kazuoki Harada,Masanobu Inoue

The 3rd International Symposium on Aero Aqua Bio-Mechanisms 2006年07月

Transonic Dynamic Instability of Blunt-nosed Recovery Vehicle Validated by Actual Reentry Flight 査読有り

K. Hiraki,S. Matsuda,K. Ijichi,T. Abe

56th International Astronautical Congress 2005年10月

Measurements on Slight Rolling Torque Acting on A Slender Body 査読有り

平木　講儒

21st International Congress on Instrumentation in Aerospace Simulation Facilities 2005年09月

Lateral-Directional Characteristics of Parafoil Obtained from Sled and Free-Flight Experiments 査読有り

K Hiraki,Y Mizuta,Y Saito,M Inoue

18th AIAA Aerodynamic Decelerators Systems Technology Conference 2005年05月

High-speed time-resolved color schlieren visualization of shock wave phenomena 査読有り

H Kleine,K Hiraki,H Maruyama,T Hayashida,J Yonai,K Kitamura,Y Kondo,TG Etoh

Shock Waves 14 ( 5-6 ) 333 - 341 2005年04月

サンプルリターンカプセルの研究と開発査読有り

稲谷芳文,石井信明,山田哲哉,平木講儒

日本航空宇宙学会誌 53 ( 619 ) .248 - 255 2005年04月

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