Numerical investigation of slider dynamics induced by contacts with disk asperities
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- Song, W., Salas, P.A., Ovcharenko, A. et al. Microsyst Technol (2013) 19: 1393. doi:10.1007/s00542-013-1825-9
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A time dependent Reynolds equation simulator combined with a finite element-based transient contact model between a slider and a disk asperity is used to study slider dynamics induced by contacts with disk asperities. The flying height change at the trailing edge of the slider is investigated as a function of asperity height, asperity diameter, and the spacing between the thermal protrusion of a thermal-flying control slider and a disk asperity. The effect of material properties of the disk asperities is studied. Slider vibrations corresponding to the first and the second pitch modes are excited by disk asperities.