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Dive into the research topics where Ippei Hata is active.

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Featured researches published by Ippei Hata.


Aij Journal of Technology and Design | 2016

BASIC STUDY ON SEISMIC BEHAVIOR OF U-SHAPED COASTER: –Effect of movement of bogie on seismic response characteristics–@@@−台車の移動が地震応答性状に及ぼす影響について−

Akira Okada; Naoya Miyasato; Ippei Hata; Shuzo Hiroishi; Hiroyasu Maeda

岡田 章— ———— * 1 宮里直也— ————* 2 秦 一平— ———— * 2 廣石秀造— ————* 3 前田浩靖— ————* 4 キーワード : 遊戯施設,振動実験,自由落下実験,モーションキャプチャ, 時刻歴応答解析


Smart Structures and Materials 1998: Smart Systems for Bridges, Structures, and Highways | 1998

Dynamic response-controlled structures with lever mechanisms

Masaharu Kubota; Shinji Ishimaru; Takahito Niiya; Ippei Hata

This paper presents a new seismic response-control system which a new type of toggle mechanism is installed. The one of authors have indicated that the lever mechanism with auxiliary mass can reduce sufficiently the input effect such as earthquake ground motions under the severe condition that the stiffness of lever arm has very high keeping large arm ratios. This paper develops the toggle system in order to overcome this difficulties and derives theoretical formulas of this system. The theory and control effectiveness of the proposed system are confirmed through a series of shaking table test for the model structure with the toggle system.


Archive | 2009

Seismic control device and seismic control structure

Takeshi Furuhashi; Ippei Hata; Tatsuji Ishimaru; Masayuki Kuzuka; 正行 公塚; 剛 古橋; 辰治 石丸; 一平 秦


Journal of Structural and Construction Engineering (transactions of Aij) | 2007

ON PERFORMANCE BASED DESIGN METHOD FOR SYSTEMS WITH NON-LINEAR VISCOUS DAMPER AND ELASTO-PLASTIC DAMPER

Ippei Hata; Shinji Ishimaru; Jun Hasegawa


Summaries of technical papers of annual meeting | 2015

21425 Basic Study on Seismic Behavior of U-shaped Coaster : (Part 1)Proposal of U-Shaped Model and Validity Chcek of Analytical Model

Hisatoshi Seita; Akira Okada; Ippei Hata; Naoya Miyasato; Shuzo Hiroishi; Hroyasu Maeda


Summaries of technical papers of annual meeting | 2015

21427 Basic Study on Seismic Behavior of U-shaped Coaster : (Part 3)Effect of Movement of Bogie on Seismic Response

Hroyasu Maeda; Akira Okada; Ippei Hata; Naoya Miyasato; Shuzo Hiroishi; Takayuki Kanno


Archive | 2008

Structure d'amortissement et procédé de conception de structure d'amortissement

Shinji Ishimaru; Takeshi Furuhashi; Ippei Hata; Masayuki Kimiduka


The Proceedings of the Symposium on the Motion and Vibration Control | 2005

C12 Full Scale Experiment on Toggle System with Elasto-Plastic Damper

Youhei Miyajima; Eiji Ehara; Shinji Ishimaru; Hidenori Ishigaki; Ippei Hata; Yuichi Yamanaka; Masaharu Kubota


The Proceedings of the Symposium on the Motion and Vibration Control | 2005

C08 On Performance based design method for systems with non-linear oil damper and elasto-plastic damper

Ippei Hata; Shinji Ishimaru; Ayako Misawa; Jun Hasegawa


The Proceedings of the Symposium on the Motion and Vibration Control | 2005

C07 A fundamental research on the base-isolation system with silicon rubber ball bearing

Ippei Hata; Shinji Ishimaru; Hidenori Ishigaki; Takeshi Ishii; Jun Hasegawa; Naohisa Kitamura

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