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TECHNICAL PAPERS

Vibration Control of a Traveling Suspended System Using Wave Absorbing Control

[+] Author and Article Information
M. Saigo

Mechanical Engineering Laboratory, Agency of Industrial Science and Technology, 1-2 Namiki, Tsukuba, Ibaraki 305-8564, Japane-mail: saigo@mel.go.jp

K. Tani

Gifu University, 1-1 Yanagito, Gifu 501-1193, Japane-mail: tani@info.gifu-u.ac.jp

H. Usui

Nippon Steel Corporation, 2-6-3 Otemati, Chiyodaku, Tokyo 100-8071, Japane-mail: usui@tekkai.nsc.co.jp

J. Vib. Acoust 125(3), 343-350 (Jun 18, 2003) (8 pages) doi:10.1115/1.1569515 History: Received May 01, 2000; Revised January 01, 2002; Online June 18, 2003
Copyright © 2003 by ASME
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References

Figures

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Traveling multiple-pendulum system and wire-and-load system
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N-DOF imaginary system for traveling pendulum system (ÿc: traveling command, ẍ0: vibration control) (a) Nontraveling Imaginary System (NTIS), (b) Traveling Imaginary System (TIS)
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Three types of initializing method for NTIS. (a) PI method: initialization when x0=0, (b) VI method: initialization when ẋ0=0, (c) VI’ method: initialization when ẋ0=0 with support shift
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Experimental apparatus (wire-and-load system)
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Experimental results of 3 DOF rigid-pendulum system (μ=3, κ=1). (a) No control, (b) Control with PI method, (c) Control with VI’ method
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Experimental results of 1 DOF rigid-pendulum system (μ=1, κ=1). (a) Control with PI method, (b) Control with VI’ method
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Experimental results of wire-and-load system (l=0.5 m,w=12.3 N, μ=3, κ=10). (a) No control, (b) Control with PI method, (c) Control with VI’ method
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Experimental results of wire-and-load system for different wire length and load weight with VI’ method (μ=1,κ=10). (a) l=0.3 m,w=12.3 N (b) l=0.9 m,w=31.9 N
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Experimental results of wire-and-load system for final positioning (l=0.3 m,w=12.3 N, μ=10, κ=10). (a) Interruption of traveling command (overrun case), (b) Position correction after traveling command
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Experimental result of nontraveling wire-and-load system for large amplitude with PI and VI methods (l=0.3 m,w=12.3 N, μ=10, κ=10).
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Numerical results of wire-and-load system (l=0.5 m,w=12.3 N, μ=3, κ=10). (a) Control with PI method, (b) Control with VI’ method
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Experimental results of crane system for raising load (total weight=17.6N). (a) No control, (b) Control with PI method (μ=10, κ=10), (c) Control with VI’ method (μ=1, κ=10)
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Experimental results of crane system for lowering load (total weight=17.6 N). (a) No control, (b) Control with PI method (μ=10, κ=10), (c) Control with VI’ method (μ=1, κ=10)

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