東京大学工学部計数工学科 システム情報談話会
10月31日15時30分より， National Taiwan Univ.のWang Fu-Cheng（王富正）教授の講演会を開催いたします． Wang教授には，Inerterに関してご講演いただきます （なお，Inerter は Cambridge 大学の Malcolm C. Smith 教授の提唱している機構です）． 皆様奮ってのご参加をお待ちいたしております．日時：2007年10月31日（水） 15:30--17:00
場所：東京大学工学部6号館 3階セミナー室A （本郷キャンパス）
(アクセス) http://www.i.u-tokyo.ac.jp/map/index.shtml#hongo
講師：Wang Fu-Cheng（王富正）教授
(Department of Mechanical Engineering, National Taiwan University; 国立台湾大学 機械工程学系)
題目：The Concepts, Realizations and Applications of Inerter
概要： Analogies between mechanical and electrical networks are basic and very well-known. For the force-current analogy, the spring, damper and mass of mechanical systems are analog to the inductor, resistor and capacitor, respectively, of electrical systems. However, unlike the others, the mass element fails to be a genuine two-terminal network element. Therefore, electrical systems with ungrounded capacitors do not have a direct analogy to mechanical systems with springs, dampers and masses. Hence the achievable performance of passive mechanical system is inherently restricted. It is from the appreciation of the imperfect analogy that a new mechanical device, called Inerter, was proposed to substitute for the mass. Inerter is an ideal mechanical two-terminal element with the applied force proportional to the relative acceleration across the terminals. The Inerter can be mechanically realized by various ways. Until now, two realizations, namely the rack-and-pinion Inerter and ball-screw Inerter, have been proposed and tested. With the introduction of Inerter, all passive impedance can be mechanically realized by the Inerter, dampers and springs. And the achievable performance can be potentially improved by passive. At the end, we will introduce the current applications of Inerter, including the vehicle suspension control, motorcycle steering control and train suspension control.
連絡先: 原 辰次 (shinji_hara (at)
ipc.i.u-tokyo.ac.jp)
管野政明 (masaaki_kanno (at) ipc.i.u-tokyo.ac.jp)
小島千昭 (chiaki_kojima (at) ipc.i.u-tokyo.ac.jp)