Atomistic simulation method in head-disk interface of magnetic data storage systems

2012 ◽  
Vol 111 (7) ◽  
pp. 07B717 ◽  
Author(s):  
Robert L. Smith ◽  
Pil Seung Chung ◽  
Sesha Hari Vemuri ◽  
Geun-Young Yeom ◽  
Lorenz T. Biegler ◽  
...  
Keyword(s):  
Data Storage ◽  
Atomistic Simulation ◽  
Storage Systems ◽  
Simulation Method ◽  
Magnetic Data Storage ◽  
Magnetic Data ◽  
Head Disk Interface ◽  
Disk Interface

Multi-scale/multi-physical modeling in head/disk interface of magnetic data storage

2012 ◽  
Vol 111 (7) ◽  
pp. 07B712 ◽  
Author(s):  
Pil Seung Chung ◽  
Robert Smith ◽  
Sesha Hari Vemuri ◽  
Young In Jhon ◽  
Kyungjae Tak ◽  
...  
Keyword(s):  
Data Storage ◽  
Physical Modeling ◽  
Magnetic Data Storage ◽  
Magnetic Data ◽  
Head Disk Interface ◽  
Disk Interface ◽  
Multi Scale

Head-disk interface design in magnetic data storage

2012 ◽  
Vol 111 (7) ◽  
pp. 07B721 ◽  
Author(s):  
Sesha Hari Vemuri ◽  
Pil Seung Chung ◽  
Robert L. Smith ◽  
Nae-Eung Lee ◽  
Lorenz T. Biegler ◽  
...  
Keyword(s):  
Data Storage ◽  
Interface Design ◽  
Magnetic Data Storage ◽  
Magnetic Data ◽  
Head Disk Interface ◽  
Disk Interface

Dynamic Analysis of Sliding Contacts at Head-Disk Interface

2002 ◽  
Author(s):  
T.-J. Chuang ◽  
S. M. Hsu
Keyword(s):  
Data Storage ◽  
High Speed ◽  
Time History ◽  
Disk Drive ◽  
Element Model ◽  
Disk Surface ◽  
Magnetic Data ◽  
Head Disk Interface ◽  
Sliding Contacts ◽  
Disk Interface

As magnetic data storage technology moves towards higher areal data density with higher rotational speeds and lower flying heights, the propensity of severe sliding contacts at the head-disk interface is bound to increase. The tribological performance of the head-disk interface will have significant impact on the durability and service life of the hard disk drive (HDD). A 3D finite element model is constructed to simulate the high speed impact event of a slider on the disk surface. For a given design of the disk with known layer thicknesses and properties, as well as that of the slider with its surface texture, the model predicts contact zone, depth force and duration as well as time-history of energy transfer and its partition, substrate stress and plastic zone for a given impact velocity. The effects of the material properties and layer thicknesses on the performance of the HDD are investigated.

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