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This paper presents the experimental and simulation studies on the dynamics of air bearing-suspension system at different dynamic states when the slider approaches the disk. Especially the surfing state is identified, and the effect of lube contact/friction force on the dynamics of air bearing slider, suspension vibrations, and even dimple-gimbal interaction forces are characterized and investigated...
The touch-down test is widely used to calibrate the flying-height (FH) of sliders by gently contacting the disk with the thermal protrusion of thermal FH control (TFC) sliders. However, the dynamic instability of TFC slider during the touch-down may significantly affect the contact detection and FH calibration. This paper highlights the nonlinear dynamics perspectives on the instability of TFC sliders...
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