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Microsystem Technologies

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01-09-2013 | Technical Paper

Numerical investigation of slider dynamics induced by contacts with disk asperities

Authors: Wenping Song, Pablo A. Salas, Andrey Ovcharenko, Hao Zheng, Frank E. Talke

Published in: Microsystem Technologies | Issue 9-10/2013

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Abstract

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.

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Title: Numerical investigation of slider dynamics induced by contacts with disk asperities
Authors: Wenping Song
Pablo A. Salas
Andrey Ovcharenko
Hao Zheng
Frank E. Talke
Publication date: 01-09-2013
Publisher: Springer Berlin Heidelberg
Published in: Microsystem Technologies / Issue 9-10/2013
Print ISSN: 0946-7076
Electronic ISSN: 1432-1858
DOI: https://doi.org/10.1007/s00542-013-1825-9

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