205 圧電コンポジットを利用した振動発電装置の開発 : 第二報,圧電振動発電機構の発電特性評価(セッション6 スマート構造システム(2))

概要

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Rotating machinery is widely used in the industrial plant, for example, power plant, chemical plant, mass-production plant and so on. In order to ensure safety operation of the rotating machinery, the vibration condition monitoring of the machinery can play a crucial role. In this study, the vibration power generator of the piezoelectric bimorph cantilever beam was proposed for vibration condition monitoring applications of rotating machinery. Proposed piezoelectric vibration power generator consisted of piezocomposite (Macro-Fiber Composite (MFC) actuator). The mechanical resonant frequency of the cantilever beam was tuned to the rotating speed of rotating machine. This study experimentally evaluates both AC and DC power generation performance of the proposed power when subjected to vibration source input magnitude of 0.71mm/s (RMS value of velocity) at the resonant frequency of the cantilever beam by using the electrodynamic shaker.
2009-12-08