A single-degree-of-freedom spring-mass-damper model has been developed to simulate the dynamic response of a typical magnetic recording slider under the effect of intermolecular forces. Thornton and Bogy (2003, IEEE Trans. Magn., 39(5), pp. 2420–2422) have previously reported that the slider “snaps” to the surface of the disk, below a certain “critical” flying height, due to the intermolecular forces. We have studied impulse response of the model to show that the slider can snap even at flying heights greater than the critical flying height and that the occurrance of snapping also depends on the magnitude of the applied impulse.

Issue Section:
Technical Papers
Keywords:
magnetic recording, discs (structures), damping, hard discs, machine bearings, springs (mechanical), intermolecular force, magnetic recording slider, impulse response
Topics:
Disks, Dynamic response, Impulse (Physics), Intermolecular forces, Springs, Magnetic recording
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Copyright © 2007
 by American Society of Mechanical Engineers
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