MET  >> Vol. 6 No. 3 (August 2017)

    Effects of Materials and Geometric Dimensions on the Flying Characteristics of a Slider in Gas-Filled Hard Disk Drives

  • 全文下载: PDF(1104KB) HTML   XML   PP.240-249   DOI: 10.12677/MET.2017.63030  
  • 下载量: 464  浏览量: 1,547   国家自然科学基金支持


杨廷毅,白雪,王辉林,刘原勇:山东理工大学,机械工程学院,山东 淄博

充气硬盘磁头滑块润滑方程飞行特性Gas-Filled Hard Disk Drive Slider Gas Lubrication Equation Flying Characteristics



With increasing of the magnetic recording density in hard disk drives (HDDs), the flying height of the slider is less than 10 nm. When a HDD is subjected to external shock loadings, the flying para-meters of the slider, including the minimum flying height, the pitch angle, the roll angle, will change over time. By solving the gas film lubrication equation in the head/disk interface and establishing a structural finite element model of a HDD system, effects of HDD cover materials, suspension materials, disk materials, suspension thickness, disk thickness, on the flying characteristics of the slider are studied in this paper. The results show that the disk materials and thicknesses have a less effect on the flying parameters of the slider, the effects of suspension materials and thicknesses on the flying characteristics of the slider are obvious. The flying parameters of the slider are changed least for a HDD with an ABS plastic cover among the studied different materials.

杨廷毅, 白雪, 王辉林, 刘原勇. 材料和几何尺寸对充气硬盘磁头滑块飞行特性的影响[J]. 机械工程与技术, 2017, 6(3): 240-249.


[1] Marchon, B., Pitchford, T., Hsia, Y.T. and Gangopadhyay, S. (2013) The Head-Disk Interface Roadmap to an Areal Density of Tbit/in2. Advances in Tribology, 2013, Article ID: 521086.
[2] 杨书仪, 刘德顺, 赵继云. 基于LS-DYNA的移动硬盘跌落冲击耐碰撞性能分析[J]. 振动与冲击, 2012, 31: 13-17.
[3] Shi, B.J., Shu, D.W., Gu, B. and Lu, G.X. (2008) Static and Dynamic Analysis of Bearing Slider for Small form Factor Drives. International Journal of Modern Physics B, 22, 1391-1396.
[4] Feliss, B., Murthy, A.N. and Talke, F.E. (2007) Microdrive Operational and Non-Operational Shock and Vibration Testing. Microsystem Technologies, 13, 1015-1021.
[5] 魏浩东, 敖宏瑞, 姜洪源. 硬盘加载/卸载过程磁头悬臂接触面的动力学仿真[J]. 振动与冲击, 2010, 29(5): 78-81.
[6] 魏浩东, 敖宏瑞, 姜洪源, 皮亚东. 微型硬盘驱动器工作状态下的冲击特性仿真[J]. 振动与冲击, 2011, 30(12): 88-92.
[7] Bhargava, P. and Bogy, D.B. (2007) Numerical Simulation of Operational-Shock in Small form Factor Hard Disk Drives. Journal of Tribology, 129, 153-160.
[8] Aruga, K., Suwa, M., Shimizu, K. and Watanabe, T. (2007) A Study on Positioning Error Caused by Flow Induced Vibration Using Helium-Filled Hard Disk Drives. IEEE Transactions on Magnetics, 43, 3750-3755.
[9] Zhou, W., Liu, B., Yu, S., Hua, W. and Gonzaga, L. (2010) Effects of Gas Physical Properties on Flying Performance of Air Bearing Slider. IEEE Transactions on Magnetics, 46, 1389-1392.
[10] Kil, S.W., Humphrey, J.A.C. and Haj-Hariri, H. (2012) Numerical Study of the Flow-Structure Interactions in an Air- or Helium-Filled Simulated Hard Disk Drive. Microsystem Technologies, 18, 57-75.
[11] Fukui, S. and Kaneko, R. (1988) Analysis of Flying Characteristics of Magnetic Heads With Ultra-Thin Spacing Based on the Boltzamann Equation. IEEE Transactions on Magnetics, 24, 2751-2753.
[12] Fukui, S. and Kaneko, R. (1990) A Database for Interpolation of Poiseuille Flow Rates for High Knudsen Number Lubrication Problems. Journal of Tribology, 112, 78-83.
[13] Shi, B.J. and Yang, T.Y. (2010) Simplified Model of Reynolds Equation with Linearized Flow Rate for Ultra-Thin Gas Film Lubrication in Hard Disk Drives. Microsystem Technologies, 16, 1727-1734.
[14] 杨廷毅, 史宝军, 葛培琪, 白雪. 考虑磁头表面高度不连续性气膜润滑的数值模拟与有效算法[J]. 计算力学学报, 2013, 30(3): 376-380.
[15] Yang, T.Y., Shi, B.J., Ge, P.Q. and Bai, X. (2012) Adaptive Grid Generation Technique of Sub-5nm Flying Height Air Bearing Slider with Clearance Discontinuities. Microsystem Technologies,18, 2017-2026.
[16] Shu, D.W., Shi, B.J., Meng, H., Yap, F.F., Jiang, D.Z., Ng, Q., Zambri, R., Lau, J.H.T. and Cheng, C.S. (2007) Shock Analysis of a Head Actuator Assembly Subjected to Half-Sine Acceleration Pulses. International Journal of Impact Engineering, 34, 253-263.
[17] Shi, B.J., Wang, S., Shu, D.W., Luo, J., Meng, H., Ng, Q.Y. and Zambri, R. (2006) Excitation Pulse Shape Effects in Drop Test Simulation of the Actuator Arm of a Hard Disk Drive. Microsystem Technologies, 12, 299-305.
[18] Zeng, Q.H. and Bogy, D.B. (2002) Numerical Simulation of Shock Response of Disk-Suspension-Slider Air Bearing Systems in Hard Disk Drives. Microsystem Technologies, 8, 289-296.