著者

佐藤 宏司 新井 史人 福田 敏男 糸魚川 貢一 塚原 靖典

出版者

The Institute of Electrical Engineers of Japan

雑誌

電気学会論文誌E(センサ・マイクロマシン部門誌) (ISSN:13418939)

巻号頁・発行日

vol.120, no.3, pp.128-133, 2000-02-20 (Released:2009-04-01)

参考文献数

13

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Parallel beam structure has many significant features, as follows. (i) The tip moves in parallel at the end. (ii)This structure converts the small displacement into the large strain. (iii) Each unit doesn't interfere to the other units by piling up this structures. We used this structure for piezoelectric vibrating gyroscope (angular rate sensor). In this paper, we analyzed features of the parallel beam structure by Finite Element Method, and showed that the resonance frequency of the drive unit and the sensor unit can be easily adjusted by changing the mass at the tip. From this result, this structure suits for the gyroscope. Experimental results are shown.

著者

鈴木 智裕 国方 淳 佐藤 宏司 浅沼 博

出版者

一般社団法人日本機械学会

雑誌

年次大会講演論文集 : JSME annual meeting

巻号頁・発行日

vol.2010, no.6, pp.333-334, 2010-09-04

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This paper presents characterization of output power of the metal-core piezoelectric ceramic (PZT) fiber/aluminum composite. As the piezofiber is very fragile, the interphase forming/bonding (IF/B) method proposed by Asanuma was used for embedding it in an aluminum matrix without its fracture. In this study, output power characterization of the piezo-composite specimen was done by an oscillation test, and it was found that 1) the output power generated from the specimen increases with increasing the square of its strain, and 2) the output power increases in proportion to its oscillation frequency.

著者

高木 清志 佐藤 宏司

出版者

一般社団法人日本機械学会

雑誌

日本機械学会関東支部総会講演会講演論文集

巻号頁・発行日

vol.2004, no.10, pp.201-202, 2004-03-03

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This paper deals with damage detection and vibration control of a new smart board designed by mounting the piezoelectric fibers with metal core on the surface of the CFRP composite. The damage of the board is identified on the assumption that the piezoelectric fibers using a sensor and actuators are broken at the damaged location simultaneously. A finite element model a CFRP cantilever is established and the damage location is identified using the input-output signals. Furthermore, the liner fractional transformation (LFT) is formulated considering the damage location and the gain-scheduled controller considering the location is designed. The control performance of the proposed method is verified by simulation.