スギモト タケシ   Sugimoto Takeshi
  杉本 剛
   所属   神奈川大学  工学部 情報システム創成学科
    神奈川大学大学院  工学研究科 工学専攻(情報システム創成領域)
   職種   教授
言語種別 日本語
発行・発表の年月 2009/11
形態種別 その他
標題 MECHANICS OF CLASSICAL KITE BUGGYING OR HOW MR. POCOCK GAINED 9 M/S BY HIS CHARVOLANT
執筆形態 単著
掲載誌名 Chinese Taiwan Association for Wind Engineering
巻・号・頁 The Seventh Asia-Pacific Conference on Wind Engineering Proceedings,885-888頁
概要 On 8th January 1827 Mr. Pocock, a British inventor, drove his Charvolant from Bristol to Marlborough, and he claimed it gained 20 mph, i.e., 9.0 m/s, speed. A Charvolant is a kite-hauling carriage. In January 2009 BBC’s Inside Out team re-created a Pocock’s huge kite, and they flew it successfully. But it is still a riddle if a pair of kites can haul a carriage with several passengers on board. The aim of this study is to establish a theoretical frame work for mechanics of a Charvolant and to account for Pocock’s claim under plausible assumptions. Use of the conventional aerodynamics and the mechanics of mass particles leads us to the power balance between an available power by kites and a required power due to carriage resistance. If a carriage is not exposed to the wind, steady-state driving is found possible at 9 m/s in 22.5 m/s horizontal gust. The side force is found small near the equilibrium. The lifting force is extremely large at low speed drive, and the key is to control the lifting force. A polar carve is also obtained as a result. The Charvolant cannot run up the wind.