国外文献 > 1.轴承 > 3. 材料与制造 > 制造工艺
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| 标 题： |
Analysis of Surface Textured Air Bearing Sliders with Rarefaction Effects
具有稀疏效应的表面纹理空气轴承滑块分析 |
| 作 者： |
Aravind N. Murthy
Izhak Etsion
Frank E. Talke |
| 关键词： |
Surface texture [表面纹理]
Rarefaction effects [ 稀释效应]
Magnetic data storage [ 磁性数据存储]
Hydrodynamic bearings [ 水动力轴承]
Air bearings [ 空气轴承]
Load-carrying capacity [ 承载能力]
Slider air bearing [ 空气轴承滑块] |
| 出版年： |
2007 |
| 期刊名： |
Tribology Letters
摩擦学通讯 |
| 年卷期： |
2007, vol.28, no.3 |
| 摘 要： |
A numerical model is developed to study the effect of texture on air bearing sliders for large Knudsen numbers. The effect of texture location, texture size, and density on the pressure generation is studied. First, a textured plane slider parallel to the disk surface is investigated, and the texture parameters are determined that result in optimum pressure generation. Then, a plane inclined slider is studied using optimum texture parameters found in the parallel slider case. Thereafter, the effect of texture on the steady state flying characteristics of an actual magnetic recording slider is investigated. Finally, the flying height modulation, pitch, and roll motion of a textured slider (pico and femto form factors) are determined numerically by exciting the slider using a step on the disk. Comparison of the results for textured and untextured sliders is made. It is found that textured sliders show better dynamic performance compared to the untextured sliders in terms of stiffness and damping.
本文开发了一个数值模型，用于研究纹理对大克努森数下气动滑块的影响。分析了纹理位置、纹理尺寸和密度对压力生成的影响。首先，研究了与圆盘表面平行的带纹理平面滑块，并确定出能产生最佳压力的纹理参数。接着，采用平行滑块中获得的最佳纹理参数，研究了倾斜平面滑块的行为。随后，考察了纹理对实际磁记录滑块稳态飞行特性的影响。最后，通过在圆盘上施加阶跃激励，数值计算了带纹理滑块的飞行高度调制、俯仰和滚转运动（包括皮秒级和飞秒级形貌）。将带纹理与无纹理滑块的结果进行比较。结果表明，与无纹理滑块相比，带纹理滑块在刚度和阻尼方面表现出更优的动态性能。 |
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