A numerical model for the simulation of slider vibrations in helium-air gas mixtures has been developed. The physical properties of the helium-air gas mixture, such as density, mean free path and viscosity, were determined to calculate the dynamic flying characteristics of a slider using the CMRR air bearing simulator. Frequency analysis shows that the helium percentage in the gas mixture can shift the second pitch mode of the slider to a higher frequency.
Volume Subject Area:
Tribology, Head/Media Interface
Topics:
Helium,
Vibration,
Air bearings,
Computer simulation,
Density,
Mean free path,
Simulation,
Viscosity
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