Feasibility study of a 3D vibration-driven electromagnetic ...
2012-11-7 · The 3D dynamic behavior and performance analysis of the device shows that the first vibration mode of 1285 Hz is an out-of-plane motion, while the second and third modes of 1470 and 1550 Hz, respectively, are in-plane at angles of 60 (240 ) and 150 (330 ) to the horizontal
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