シミズ ヤスオ   SHIMIZU Yasuo
  清水 康夫
   所属   東京電機大学  工学部 先端機械工学科
   東京電機大学  工学部 機械工学科
   東京電機大学大学院  先端科学技術研究科 機械システム工学専攻
   東京電機大学大学院  工学研究科 機械工学専攻
   職種   教授
言語種別 英語
発行・発表の年月 2014/04
形態種別 国際会議論文
標題 Durability Design Method of New Stopper Bush Using New Theory(Friction and Spring) for Electric Power Steering
執筆形態 共著
掲載誌名 SAE International
掲載区分国外
出版社・発行元 SAE(US)
巻・号・頁 vol.7(Issue3),pp.945-952
総ページ数 8
概要 In this study, we aimed to have a smaller and lighter EPS gear size by focusing on an impact load caused at steering end. In order to increase the shock absorption energy without increase of stopper bush size, we propose new theory of impact energy absorption by not only spring function but also friction, and a new stopper bush was designed on the basis of the theory. In particular, the theoretical study was made on the effect due to sliding from the standpoint of the contact pressure and the sliding distance, and durability testing was carried out to check for the durability of the performance after predetermined operation time. After the durability testing, we have examined the force-displacement characteristics, the change in characteristics by thickness reduction agree with the theory. We will report the design method, since the design procedure of the smaller and lighter EPS gear size could be confirmed useful.