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TECHNICAL BRIEFS

A New Digital Algorithm for Elimination of Spillover

[+] Author and Article Information
M. Utsumi

Machine Element Department, Research Institute, Ishikawajima-Harima Heavy Industries Company Ltd., 3-1-15 Toyosu, Koto-ku, Tokyo 135-0061, Japan

J. Dyn. Sys., Meas., Control 122(2), 360-364 (Jul 28, 1998) (5 pages) doi:10.1115/1.482473 History: Received July 28, 1998
Copyright © 2000 by ASME
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References

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Figures

Grahic Jump Location
Filters H1(ω) and H2(ω) for detecting controlled and residual modes, respectively (H1(ω) and H2(ω) are real functions)
Grahic Jump Location
Mass-spring layered structure subjected to translational and rotational base excitations
Grahic Jump Location
Frequency response of acceleration in the x direction at (x,y)=(0,−0.75) m on the 3rd layer (———, uncontrolled; ——, controlled; 0 dB=1 m/s2)
Grahic Jump Location
Maximum absolute value amax of nonstationary response of acceleration in the x direction at (x,y)=(0,−0.75) m on the 3rd layer (———, uncontrolled; ——, controlled; 0 dB=1 m/s2)
Grahic Jump Location
Flexible beam subjected to velocity feedback control with phase-lag in high-frequency domain
Grahic Jump Location
Measured transfer function from exciting force to velocity at sensor: (a) Uncontrolled (G=0); (b) spillover-induced vibration of 3rd mode (G=6.5); (c) suppression of the spillover-induced vibration by present algorithm (G=14,Δt=5 ms,m=10,n=40,Ω1=10.56 Hz); 0 dB=1 m/Ns

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