Tape edge study in a linear tape drive with single-flanged guides

2004 ◽  
Vol 271 (2-3) ◽  
pp. 409-430 ◽  
Author(s):  
Anton V. Goldade ◽  
Bharat Bhushan
Keyword(s):  
Tape Drive ◽  
Tape Edge ◽  
Linear Tape Drive

Failure mechanisms of the head-tape interface during head stepping in a linear tape drive

2003 ◽  
Vol 217 (1) ◽  
pp. 39-58 ◽  
Author(s):  
P. P. Ambekar ◽  
B Bhushan
Keyword(s):  
Metal Particle ◽  
Friction And Wear ◽  
Failure Mechanisms ◽  
Tribological Performance ◽  
Air Bearing ◽  
Tape Drive ◽  
Interface Friction ◽  
Head Surface ◽  
Tape Edge ◽  
Linear Tape Drive

Improving the performance of computer tape drives is an ongoing process. The magnetic and tribological performance of metal particle (MP) tape during head stepping was evaluated in a commercial linear tape drive. Head output and head-tape interface friction were monitored during short-pass (10m) shuttling tests with stepping of the head. The test without stepping showed no signs of failure. To evaluate the effect of stepping on the head-tape interface, three different kinds of stepping test, namely normal stepping, reverse stepping and normal stepping with inverted drive, were performed. All these tests with head stepping failed far sooner than the test without stepping. Non-parallelism between the head and tape surfaces caused a reduction in hydrodynamic air bearing pressure. Less spacing between the lower tape edge and the head resulted in high wear of the lower edge of the tape and outer outrigger surfaces of the head. Additional sliding in a direction orthogonal to the tape motion from head stepping aggravated the friction and wear of the lower tape edge. The inability of the drive to overcome this high friction ultimately resulted in failure. On the head surface, different kinds of debris were found, and unsymmetrical debris distribution was observed. Some manufacturing improvements are presented to prolong drive durability.

Study of Perpendicular AME Media in a Linear Tape Drive

2009 ◽  
Vol 45 (10) ◽  
pp. 3601-3603 ◽  
Author(s):  
P.-O. Jubert ◽  
D. Berman ◽  
W. Imaino ◽  
T. Sato ◽  
N. Ikeda ◽  
...  
Keyword(s):  
Tape Drive ◽  
Linear Tape Drive

Characterization of Tape Edge Contact Force With Acoustic Emission

2007 ◽  
Vol 129 (4) ◽  
pp. 525-529 ◽  
Author(s):  
Bart Raeymaekers ◽  
Frank E. Talke
Keyword(s):  
Acoustic Emission ◽  
Contact Force ◽  
Operating Conditions ◽  
Dimensional Model ◽  
Tape Drive ◽  
Edge Contact ◽  
One Dimensional ◽  
Acoustic Emission Sensors ◽  
Tape Edge

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.

Effect of molecular rarefaction on head/tape interface in a linear tape drive

2007 ◽  
Vol 59 (3) ◽  
pp. 107-118
Author(s):  
Tze‐Chi Hsu ◽  
Hsiu‐Lu Chiang ◽  
Chun‐Yuan Lin
Keyword(s):  
Tape Drive ◽  
Linear Tape Drive

Tribology of High Density Tape Storage Systems

2001 ◽  
Author(s):  
Hiroyuki Osaki
Keyword(s):  
Storage Systems ◽  
Static Friction ◽  
Vertical Displacement ◽  
Excessive Force ◽  
Tape Drive ◽  
Track Width ◽  
Static Friction Coefficient ◽  
Tape Storage ◽  
Drive Systems ◽  
Tape Edge

Abstract Decreasing track width and tape thickness to increase the volumetric recording density of tape drive systems will result in the failure of tracking. The decrease in the tape thickness causes the vertical displacement of the tape forwarding position, which is controlled by pressing the lower tape edge against the lead of a stationary drum. The position of the upper tape edge is controlled by the height of the flanges of the roller guides beside the drum. The displacement of tape forwarding position causes the failure of tracking, especially with narrow track. The reduction of the static friction coefficient between the tape and the roller guides in a drive was found to be effective to reduce the excessive force with which the tape edges are pressed to the flanges or the lead, which will cause the displacement of the tape forwarding position.

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