著者

石井 徳章 阿南 景子 巻幡 敏秋 奥 達也 大原 健史

出版者

公益社団法人 土木学会

雑誌

構造工学論文集 A (ISSN:1881820X)

巻号頁・発行日

vol.53A, pp.589-596, 2007 (Released:2007-08-01)

---

This paper describes a serious failure of 37-ton Tainter gate in Japan and presents its failure re-investigation, where the major characteristics of static structural strength and self-excited vibration are addressed with the aid of current FEM high technologies and our theoretical calculations developed for the 87-ton Tainter-gate failure at Folsom dam in California. The Tainter-gate failure occurred on July 2nd 1967 at W Dam, constructed at the upstream of Yura River in Kyoto Prefecture in Japan. The failure investigation at that time concluded that the radial strut structure was not high enough in strength for the hydrostatic load to induce the serious in-ward buckling failure of the main radial struts. In the present study, FEM simulations were made to address that the gate failure could not take place, caused only by the static hydraulic load. Subsequently, the theoretical calculations developed for the Folsom Tainter-gate failure was incorporated into FEM simulations to address that W gate also induced the coupled-mode violent self-excited vibration at its incipient failure, while the gate was being closed at small gate openings, closely similar as on the Folsom gate failure.

著者

石井 徳章 阿南 景子

出版者

大阪電気通信大学

雑誌

挑戦的萌芽研究

巻号頁・発行日

2014-04-01

---

急激な出力調整が難しいという欠点を補うために考案されたスターリングエンジン・DCモータ方式のハイブリッド車両を実現するために、その第1段階として、「駆動トルク配分機構およびその制御システムの開発」に重点を置いた駆動装置の実験シミュレータを製作した。ただし、スターリングエンジンはACモータに置き換えた。駆動トルク配分機構には、遊星歯車を用いた配分機構を用いた。駆動トルクの配分制御には最も簡単なクラッチ機構を利用して実現し、滑らかな動力配分が可能であることを実証した。