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TECHNICAL PAPERS

Structural Modification for the Assignment of Zeros Using Measured Receptances

[+] Author and Article Information
J. E. Mottershead

Department of Engineering, The University of Liverpool, Liverpool L69 3GH, UK

J. Appl. Mech 68(5), 791-798 (May 17, 2001) (8 pages) doi:10.1115/1.1388616 History: Received October 04, 2000; Revised May 17, 2001
Copyright © 2001 by ASME
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References

Figures

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Six-degree-of-freedom spring-mass system
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(a) Undamped receptance with an assigned zero at 1.5 rad/s; (b) undamped receptance for the subsidiary system of the zeros of h45
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Damped receptance—grounded dashpot at coordinate 3
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Damped receptance—grounded dashpot at coordinate 4
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Damped receptance-dashpot connected between coordinates 2 and 3
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Damped receptance-dashpot connected between coordinates 4 and 5
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Receptance h45 of the damped system
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Receptance of the damped system following modification by a grounded spring at coordinate 3
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Measured receptances h13,13 from the free-free beam; (a) before, modification, (b) after modification
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Measured receptances h17,13 from the free-free beam; (a) before modification, (b) after modification
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Measured receptances, h13,13 from the clamped-free beam; (a) before modification, (b) after modification

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