Modeling of thermal sensor response to disk asperities

Youyi Fu; Chuanwei Zhang; Andrey Ovcharenko; Min Yang; Frank E. Talke

doi:10.1109/TMAG.2016.2569521

Modeling of thermal sensor response to disk asperities

Youyi Fu^*
, Chuanwei Zhang
, Andrey Ovcharenko
, Min Yang
, Frank E. Talke

^*Corresponding author for this work

University of California at San Diego
School of Mechatronics Engineering, Harbin Institute of Technology
Western Digital

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

A finite-element model was implemented to study the transient thermoelastic-plastic contact between a thermal asperity sensor and a thermal asperity on a disk in a hard disk drive. The temperature change of the thermal asperity sensor during contact with an asperity was calculated and converted into resistance change of the sensor using experimental measurements for the relationship between the sensor temperature and the sensor resistance. In addition, the effect of asperity material properties on the resistance change of the sensor was studied. The simulation results show that the resistance change of the sensor is a function of the bias voltage applied to the sensor, the friction coefficient between the sensor and the asperity, the disk velocity, and the contact interference between the asperity and the sensor.

Original language	English
Article number	7470430
Journal	IEEE Transactions on Magnetics
Volume	52
Issue number	9
DOIs	https://doi.org/10.1109/TMAG.2016.2569521
State	Published - Sep 2016
Externally published	Yes

Keywords

Disk asperity
finite-element analysis
hard disk drive
head/disk interface
heat transfer
thermal sensor

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10.1109/TMAG.2016.2569521

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title = "Modeling of thermal sensor response to disk asperities",

abstract = "A finite-element model was implemented to study the transient thermoelastic-plastic contact between a thermal asperity sensor and a thermal asperity on a disk in a hard disk drive. The temperature change of the thermal asperity sensor during contact with an asperity was calculated and converted into resistance change of the sensor using experimental measurements for the relationship between the sensor temperature and the sensor resistance. In addition, the effect of asperity material properties on the resistance change of the sensor was studied. The simulation results show that the resistance change of the sensor is a function of the bias voltage applied to the sensor, the friction coefficient between the sensor and the asperity, the disk velocity, and the contact interference between the asperity and the sensor.",

keywords = "Disk asperity, finite-element analysis, hard disk drive, head/disk interface, heat transfer, thermal sensor",

author = "Youyi Fu and Chuanwei Zhang and Andrey Ovcharenko and Min Yang and Talke, \{Frank E.\}",

note = "Publisher Copyright: {\textcopyright} 1965-2012 IEEE.",

year = "2016",

month = sep,

doi = "10.1109/TMAG.2016.2569521",

language = "英语",

volume = "52",

journal = "IEEE Transactions on Magnetics",

issn = "0018-9464",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

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TY - JOUR

T1 - Modeling of thermal sensor response to disk asperities

AU - Fu, Youyi

AU - Zhang, Chuanwei

AU - Ovcharenko, Andrey

AU - Yang, Min

AU - Talke, Frank E.

PY - 2016/9

Y1 - 2016/9

N2 - A finite-element model was implemented to study the transient thermoelastic-plastic contact between a thermal asperity sensor and a thermal asperity on a disk in a hard disk drive. The temperature change of the thermal asperity sensor during contact with an asperity was calculated and converted into resistance change of the sensor using experimental measurements for the relationship between the sensor temperature and the sensor resistance. In addition, the effect of asperity material properties on the resistance change of the sensor was studied. The simulation results show that the resistance change of the sensor is a function of the bias voltage applied to the sensor, the friction coefficient between the sensor and the asperity, the disk velocity, and the contact interference between the asperity and the sensor.

AB - A finite-element model was implemented to study the transient thermoelastic-plastic contact between a thermal asperity sensor and a thermal asperity on a disk in a hard disk drive. The temperature change of the thermal asperity sensor during contact with an asperity was calculated and converted into resistance change of the sensor using experimental measurements for the relationship between the sensor temperature and the sensor resistance. In addition, the effect of asperity material properties on the resistance change of the sensor was studied. The simulation results show that the resistance change of the sensor is a function of the bias voltage applied to the sensor, the friction coefficient between the sensor and the asperity, the disk velocity, and the contact interference between the asperity and the sensor.

KW - Disk asperity

KW - finite-element analysis

KW - hard disk drive

KW - head/disk interface

KW - heat transfer

KW - thermal sensor

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M3 - 文章

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SN - 0018-9464

VL - 52

JO - IEEE Transactions on Magnetics

JF - IEEE Transactions on Magnetics

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ER -

Modeling of thermal sensor response to disk asperities

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