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Keywords: disc drives
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Journal Articles
Article Type: Research Papers
J. Tribol. October 2010, 132(4): 041402.
Published Online: October 1, 2010
... ,” J. Mater. Res. 0884-2914 , 18 , pp. 2150 – 2162 . 10.1557/JMR.2003.0301 18 11 2009 30 07 2010 01 10 2010 01 10 2010 disc drives elasticity finite element analysis hard discs impact testing magnetic storage plasticity contact mechanics oblique impact...
Journal Articles
Article Type: Technical Briefs
J. Tribol. April 2010, 132(2): 024502.
Published Online: March 24, 2010
... values of each head needs to be applied. compensation disc drives hard discs flying clearance thermomechanical actuation thermal flying height control (TFC) head-disk interface (HDI) pole tip protrusion It is essential to reduce the flying clearance (or head-media spacing) down...
Journal Articles
Article Type: Research Papers
J. Tribol. April 2010, 132(2): 021701.
Published Online: March 24, 2010
..., the reference Knudsen number K ref equals 2.5, and the disk motion is at a zero skew angle. 16 06 2009 11 01 2010 24 03 2010 24 03 2010 disc drives Knudsen flow lubrication Poiseuille flow surface roughness data storage high Knudsen number rough surface...
Journal Articles
Article Type: Research Papers
J. Tribol. January 2010, 132(1): 011901.
Published Online: December 10, 2009
... not directly cause a bouncing vibration in the absence of disk microwaviness or roughness. 03 09 2008 01 10 2009 10 12 2009 10 12 2009 adhesion disc drives discs (structures) elasticity friction hard discs slip springs (mechanical) surface roughness vibrations...
Journal Articles
Article Type: Research Papers
J. Tribol. July 2009, 131(3): 031902.
Published Online: June 15, 2009
.... The formulation is implemented, and convergence studies are carried out for the method. Mesh refinements based on flux jumps and pressure gradients are found to work better than those based on other criteria. 05 10 2006 01 06 2008 15 06 2009 disc drives hard discs inverse problems mesh...
Journal Articles
Article Type: Research Papers
J. Tribol. July 2009, 131(3): 031901.
Published Online: May 27, 2009
... ) Schematic showing sudden expansion of air under the airbearing 16 10 2006 14 04 2009 27 05 2009 disc drives hard discs lubricants tribology hard disk tribology reliability head-disk interface ABS design lubricant In order to achieve the target areal...
Journal Articles
Article Type: Research Papers
J. Tribol. April 2009, 131(2): 021902.
Published Online: March 3, 2009
... 31 08 2008 03 03 2009 disc drives elastic constants electromagnetic actuators friction hard discs magnetic heads mechanical contact suspensions (mechanical components) hard disk drive head-disk interface head-arm assembly actuator arm suspension transverse displacement...
Journal Articles
Article Type: Research Papers
J. Tribol. January 2009, 131(1): 011904.
Published Online: December 3, 2008
..., the average amplitude is nonzero. Cross section average along nanoscratch direction of MFM images: ( a ) LMR media sample with 100   μ N load; ( b ) PMR media sample with 100   μ N load 05 03 2008 05 08 2008 03 12 2008 atomic force microscopy disc...
Journal Articles
Article Type: Research Papers
J. Tribol. January 2009, 131(1): 011901.
Published Online: November 26, 2008
... – 260 . disc drives finite element analysis hard discs lubrication mechanical contact load/unload hard disk drive air slider multiple flying height states numerical continuation method dynamic analysis Tanaka et al. ( 1 ) found that a negative pressure slider can have two...
Journal Articles
Article Type: Research Papers
J. Tribol. January 2009, 131(1): 012001.
Published Online: November 26, 2008
... computational fluid dynamics disc drives hard discs magnetic heads magnetic recording microchannel flow Monte Carlo methods rarefied fluid dynamics Magnetic recording has become the main technology for the storage of digital data. With the introduction of hard disk drives in consumer products...
Journal Articles
Article Type: Research Papers
J. Tribol. October 2008, 130(4): 041901.
Published Online: August 5, 2008
..., several ABS designs are evaluated by comparing their TMA efficiencies. 01 10 2007 06 06 2008 05 08 2008 actuators disc drives hard discs mechanical contact pressure transducers thermomechanical actuation efficiency air bearing pressure force ABS design...
Journal Articles
Article Type: Research Papers
J. Tribol. April 2008, 130(2): 022001.
Published Online: March 3, 2008
... . 29 08 2007 07 12 2007 03 03 2008 atomic force microscopy disc drives hard discs intermolecular forces thermal actuation adhesion head-disk interface (HDI) head-media spacing (HMS) pole tip protrusion In order to meet the demands of higher capacity hard disk...
Journal Articles
Article Type: Research Papers
J. Tribol. January 2008, 130(1): 011008.
Published Online: December 26, 2007
.... The calculated flying heights agree with those measured in commercial hard disk drives. disc drives hard discs humidity machine bearings 02 04 2007 04 09 2007 26 12 2007 The same data are plotted with respect to water vapor pressure in Fig. 8b . For a given water vapor pressure...
Journal Articles
Article Type: Research Papers
J. Tribol. January 2008, 130(1): 011002.
Published Online: December 6, 2007
... and the spinning disk. fluid bearing air bearing contamination hard disk drive particle flow disc drives flow hard discs surface contamination 04 05 2006 22 09 2007 06 12 2007 Koka , R. , 1989 , “ Effects of Fine Particles on the Slider/Disk Interface in Rigid...
Journal Articles
Article Type: Technical Papers
J. Tribol. October 2007, 129(4): 712–719.
Published Online: June 11, 2007
... are different because their interface parameters (DTM parameters and flying attitude) are different. Higher pressure is due to smaller spacing. 07 05 2006 11 06 2007 disc drives hard discs mechanical contact discrete track medium air bearing slider head-disk interface flying...
Journal Articles
Article Type: Technical Papers
J. Tribol. October 2007, 129(4): 729–734.
Published Online: April 20, 2007
... the particle and the disk could lead to permanent loss of data. In addition, we performed investigations to study the impact of air bearing design features, load/unload mechanism, and particle number density on the head disk interface. 24 04 2006 20 04 2007 data recording disc drives...
Journal Articles
Article Type: Technical Papers
J. Tribol. July 2007, 129(3): 562–569.
Published Online: March 19, 2007
... 2007 hard discs disc drives floppy discs cost reduction mechanical contact Disk-drive data storage products are becoming more mobile and portable with an increased emphasis on disk storage capacity, data transfer rate, low power consumption, and ruggedness. Typical applications include...
Journal Articles
Article Type: Technical Papers
J. Tribol. July 2007, 129(3): 570–578.
Published Online: February 27, 2007
... With Piezoelectric Nanoactuator in Hard Disk Drives ,” ASME J. Tribol. 0742-4787 10.1115/1.2401208 , 129 ( 1 ), pp. 161 – 170 . 10 11 2006 27 02 2007 hard discs disc drives mechanical contact finite element analysis iterative methods heat transfer machine bearings active...
Journal Articles
Article Type: Technical Papers
J. Tribol. July 2007, 129(3): 553–561.
Published Online: January 26, 2007
... methods, by assuming a single continuous distribution over the entire surface, are not able to isolate the top and bottom asperity distributions and thus are more likely to overestimate the interfacial forces in sub-5 nm flying HDIs. 21 05 2006 26 01 2007 magnetic heads disc drives...
Journal Articles
Article Type: Technical Papers
J. Tribol. July 2007, 129(3): 579–585.
Published Online: January 10, 2007
... by Tani et al. ( 8 ); the slider touchdown phenomenon depends on the disk surface roughness, and the touchdown pressure or velocity is greater for a rougher disk. Computed van der Waals pressure lubricants disc drives hard discs sliding friction mechanical stability surface roughness...