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.

1.
Wu
,
L.
, and
Bogy
,
D. B.
, 2002, “
Effect of the Intermolecular Forces on the Flying Attitude of sub-5nm Flying Height Air Bearing Sliders in Hard Disk Drives
,”
ASME J. Tribol.
0742-4787,
124
, pp.
562
567
.
2.
White
,
L. R.
,
Dagastine
,
R. R.
,
Jones
,
P. M.
, and
Hsia
,
Y.-T.
, 2004, “
Fully Retarded van der Waals Force Calculation Between Laminated Media, Pertinent to the HDI
,”
Proceedings of ASME/ISPS Conf.
, Santa Clara, CA, ASME, New York.
3.
Li
,
J.
,
Liu
,
B.
, and
Hua
,
W.
, 2002, “
Intermolecular Forces, Surface Roughness and Air Bearing Design
,”
Magnetic Recording Conference, Digest of the Asia-Pacific
, August 27–29, pp.
TU
-P-15-01–TU-P-15-
02
.
4.
Li
,
J.
,
Liu
,
B.
,
Hua
,
W.
, and
Ma
,
Y.
, 2002, “
Effects of Intermolecular Forces on Deep sub-10nm Spaced Sliders
,”
IEEE Trans. Magn.
0018-9464,
38
(
5
), pp.
2141
2143
.
5.
Thornton
,
B. H.
, and
Bogy
,
D. B.
, 2003, “
Head-Disk Interface Dynamic Instability Due to Intermolecular Forces
,”
IEEE Trans. Magn.
0018-9464,
39
(
5
), pp.
2420
2422
.
6.
Thornton
,
B. H.
, and
Bogy
,
D. B.
, 2004, “
A Parametric Study of Head-Disk Interface Instability Due to Intermolecular Forces
,”
IEEE Trans. Magn.
0018-9464,
40
(
1
), pp.
337
344
.
7.
Israelachvili
,
J. N.
, 1992,
Intermolecular and Surface Forces
,
2nd ed.
,
Academic Press
,
San Diego
.
8.
Kreyszig
,
I.
, 1994,
Advanced Engineering Mathematics
, 5th edited by
H. S.
Poplai
,
Wiley Eastern Ltd.
,
New Delhi
, Chap. 21.
You do not currently have access to this content.