著者

村野 健一 吉田 和夫

出版者

一般社団法人日本機械学会

雑誌

日本機械学會論文集. C編 = Transactions of the Japan Society of Mechanical Engineers. C (ISSN:03875024)

巻号頁・発行日

vol.69, no.686, pp.2580-2587, 2003-10-25

参考文献数

8

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The container crane of the harbor received the enormous damage in the Hanshin Awaji great earthquake disaster. After that, the container crane with seismic vibration isolation system has been developed and operated in practical use. We proposed the rocking type of vibration isolation sysem (RVIS) for the container crane instead of the horizontal type of vibration isolation system that is used in bridges and building. It was found that the damping factor of RVIS mechanism has the particular values for the different natural vibration modes. In this paper, we propose the application of a semiactive control system to the RVIS mechanism to improve the isolation performance and operation efficiency. The Kalman filter in used to estimate the system state values. The results of the isolation controlled by the semiactive system are better seismic isolation in performance than the passive RVIS. And we show that the semi-active RVIS can be used in the operation of the container crane.