Numerical study on the effects of linear protrusion on flow-induced carriage excitation force in hard disk drives

被引:2
作者
Koganezawa, Shinji [1 ]
Tsuda, Shotaro [2 ]
Tani, Hiroshi [1 ]
Lu, Renguo [1 ]
Tagawa, Norio [1 ]
机构
[1] Kansai Univ, Dept Mech Engn, 3-3-35 Yamatecho, Suita, Osaka 5648680, Japan
[2] Tiger Corp, 3-1 Hayami, Kadoma, Osaka 5718571, Japan
来源
MICROSYSTEM TECHNOLOGIES-MICRO-AND NANOSYSTEMS-INFORMATION STORAGE AND PROCESSING SYSTEMS | 2020年 / 26卷 / 01期
关键词
OFF-TRACK VIBRATION; VISUALIZATION;
D O I
10.1007/s00542-019-04398-z
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The positioning accuracy of magnetic heads needs to be improved to increase the recording capacity of hard disk drives. In our previous study, experimental results confirmed that the head-positioning error could be decreased by attaching linear protrusions on the leading edge of the carriage arms. However, the mechanism underlying the phenomenon has not been elucidated. In the present research, we evaluated the effect of leading-edge protrusions on the flow-induced carriage excitation force using computational fluid dynamics (CFD) analysis and the Hilbert-Huang transform (HHT). We prepared two carriage-arm models, with and without linear protrusions, on the leading edges of the arm, and performed the CFD analyses. Subsequently, we conducted a frequency analysis by applying HHT to the simulated disturbance torque time-series of each carriage-arm model and compared the results. Our results show that the leading-edge protrusions decrease the disturbance torque due to the flow fluctuation between the arm and disk and in the wake flow, although the low-frequency disturbance torque due to the pulsatile flow can be deteriorated.
引用
收藏
页码:33 / 47
页数:15
相关论文
共 14 条
[1]   FLOW VISUALIZATION AND SPECTRAL MEASUREMENTS IN A SIMULATED RIGID DISK DRIVE [J].
ABRAHAMSON, SD ;
KOGA, DJ ;
EATON, JK .
IEEE TRANSACTIONS ON COMPONENTS HYBRIDS AND MANUFACTURING TECHNOLOGY, 1988, 11 (04) :576-584
[2]   Mitigation of flow induced vibration of head gimbal assembly [J].
De Zhang, Qi ;
Tan, Chok Shiong ;
Sundaravadivelu, Kannan ;
Suriadi, Maria A. ;
Chin, Gim Leong ;
Yip, Teck Hong ;
Ong, Eng Hong ;
Liu, Ning Yu .
MICROSYSTEM TECHNOLOGIES-MICRO-AND NANOSYSTEMS-INFORMATION STORAGE AND PROCESSING SYSTEMS, 2010, 16 (1-2) :213-219
[3]   The empirical mode decomposition and the Hilbert spectrum for nonlinear and non-stationary time series analysis [J].
Huang, NE ;
Shen, Z ;
Long, SR ;
Wu, MLC ;
Shih, HH ;
Zheng, QN ;
Yen, NC ;
Tung, CC ;
Liu, HH .
PROCEEDINGS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 1998, 454 (1971) :903-995
[4]   Aerodynamic characteristics of carriage arm equipped on hard magnetic disks [J].
Kaneko, Shigehiko ;
Nishihara, Takashi ;
Watanabe, Tatsuo .
MICROSYSTEM TECHNOLOGIES-MICRO-AND NANOSYSTEMS-INFORMATION STORAGE AND PROCESSING SYSTEMS, 2007, 13 (8-10) :1297-1306
[5]   Analysis of the slider off-track vibration caused by the aerodynamic loads associated with different components of a head stack assembly in a disk drive [J].
Kazemi, Mohammad .
IEEE TRANSACTIONS ON MAGNETICS, 2008, 44 (05) :633-639
[6]   Numerical analysis of off-track vibration of head gimbal assembly in hard disk drive caused by the airflow [J].
Kazemi, Mohammad .
MICROSYSTEM TECHNOLOGIES-MICRO-AND NANOSYSTEMS-INFORMATION STORAGE AND PROCESSING SYSTEMS, 2007, 13 (8-10) :1201-1209
[7]   Investigation of Fluid Structure Interaction of a Head Stack Assembly in a Hard Disk Drive [J].
Kazemi, Mohammad .
IEEE TRANSACTIONS ON MAGNETICS, 2009, 45 (12) :5344-5351
[8]   An alternative to CFD: piecewise linear models for frequency spectra of flow induced drag in hard disk drives [J].
Kirpekar, Sujit ;
Bogy, David B. .
MICROSYSTEM TECHNOLOGIES-MICRO-AND NANOSYSTEMS-INFORMATION STORAGE AND PROCESSING SYSTEMS, 2007, 13 (8-10) :1271-1279
[9]   Frequency Analysis of Disturbance Torque Exerted on a Carriage Arm in Hard Disk Drives Using Hilbert-Huang Transform [J].
Koganezawa, Shinji ;
Tsuda, Shotaro ;
Tani, Hiroshi ;
Lu, Renguo ;
Tagawa, Norio .
IEEE TRANSACTIONS ON MAGNETICS, 2018, 54 (11)
[10]   Linear protrusion structure on carriage-arm surface for reduction of flow-induced carriage vibration in hard disk drives [J].
Koganezawa, Shinji ;
Ohtsuka, Shinichi ;
Funabashi, Kei .
MICROSYSTEM TECHNOLOGIES-MICRO-AND NANOSYSTEMS-INFORMATION STORAGE AND PROCESSING SYSTEMS, 2011, 17 (5-7) :799-804