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TECHNICAL BRIEFS

Characterization of Tape Edge Contact Force With Acoustic Emission

[+] Author and Article Information
Bart Raeymaekers, Frank E. Talke

 University of California, San Diego, Center for Magnetic Recording Research, 9500 Gilman Drive, #0401, La Jolla, CA 92093

J. Vib. Acoust 129(4), 525-529 (Apr 04, 2007) (5 pages) doi:10.1115/1.2748775 History: Received June 10, 2006; Revised April 04, 2007

Acoustic emission sensors were used to detect contact between a moving tape and the flange of a tape guide. The influence of tape drive operating conditions on the tape edge contact force was studied. A one-dimensional model was developed to predict the magnitude of tape/flange impact. The model fits the experimental data well.

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Copyright © 2007 by American Society of Mechanical Engineers
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Figures

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Figure 1

“Ball drop method” calibration procedure

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Figure 2

Experimental setup

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Figure 3

(a) LTM, (b)1kHz high pass filtered LTM, (c) rms impact force, versus time, and d) time frequency analysis of LTM

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Figure 4

Experimentally measured average impact force versus supply reel tape pack size, for a nominal tape tension of 1N (solid lines) and 2N (dashed lines) and for different tape speeds

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Figure 5

(a) Physical model and (b) mathematical model

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Figure 6

Axial run-out of supply reel for different pack diameters

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Figure 7

Simulated average impact force versus supply reel tape pack size, for a nominal tape tension of 1N (solid lines) and 2N (dashed lines) and for different tape speeds

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Figure 8

Simulated average impact force versus supply reel tape pack size, for different values of Tsin(θ∕2) and for a tape speed of (a)4m∕s, (b)8m∕s, and (c)12m∕s

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