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RESEARCH PAPERS

Experimental Modal Analysis of a Suspension Assembly Loaded on a Rotating Disk

[+] Author and Article Information
C. J. Wilson

Hewlett-Packard Laboratories, 1501 Page Mill Rd., MS 2U-13, Palo Alto, CA 94304

D. B. Bogy

Computer Mechanics Laboratory, Department of Mechanical Engineering, University of California, Berkeley, Berkeley, CA 94720

J. Vib. Acoust 116(1), 85-92 (Jan 01, 1994) (8 pages) doi:10.1115/1.2930402 History: Received October 01, 1992; Online June 17, 2008

Abstract

An experimental modal analysis system, which has been shown to be effective in the study of small structures, is utilized to analyze the interaction of the disk and the suspension assembly in a computer disk drive. A thorough understanding of the interaction of these structures is obtained by determining the modal parameters for each of the components in an uncoupled state and in a coupled state with the disk both stationary and rotating. It is shown that when a natural frequency of the suspension is close to that of the disk, two system resonant frequencies are created when the components are coupled together.

Copyright © 1994 by The American Society of Mechanical Engineers
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