3806 超音波振動による紙状媒体の摩擦低減現象(S59-2 柔軟媒体ハンドリングと画像形成システム(2),21世紀地球環境革命の機械工学:人・マイクロナノ・エネルギー・環境)

概要

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Sheet separation and handling technology is becoming more important in view of rising demand for enhancement of the performance of sheet media handling apparatus. In particular, multiple sheet media separation technology to prevent double feed in a printing system etc. is an important development item. To examine the basis of the technology, we paid attention to the friction reduction phenomenon arising from the ultrasonic vibration near the surface of the pile sheet. Since the mechanism of the phenomenon has not been clarified analytically, we modeled the behavior of a sheet and a layer of air, and calculated the moving shapes of the sheet. Resonance frequencies associated with a sheet and properties of a layer of air are calculated, and it was revealed that the sheet media could vibrate in resonance at ultrasonic frequency. And we experimentally examined the vibrating sheet shape to support the calculation result. The stable vibratory motions seemed to provide the relative displacement between sheets and to reduce friction.
社団法人日本機械学会の論文
2008-08-02