Abstract
In order to study the dynamic characteristics of a hard disk drive subjected to external shock, a dynamic model was established to describe the head/disk interface with slider suspension and the lift-tab/ramp interface. The dynamic performance of the system subjected to external shocks with half-sinusoidal shape for different durations and amplitudes were simulated. The dynamic response of the head slider under the shocks and the main factors affecting the air bearing force were discussed. The simulation results indicated that during shock, the squeezing effect of the thin film at the head/disk interface influences the air bearing force, and the variation of the shock duration and amplitude effects the stability of the slider. The simulation results provided a theoretical reference and analytical method for design of hard disk drives with good anti-shock performance.
| Original language | English |
|---|---|
| Pages (from-to) | 88-92 |
| Number of pages | 5 |
| Journal | Zhendong yu Chongji/Journal of Vibration and Shock |
| Volume | 30 |
| Issue number | 12 |
| State | Published - Dec 2011 |
| Externally published | Yes |
Keywords
- Air bearing
- Contact
- Hard disk drive
- Shock
- Simulation
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