Abstract
Recently the spacing between the slider and the disk has been reduced to 10nm or less, and analysis of the slider dynamics becomes increasingly important. To perform this analysis, the highly accurate and numerically stable cubic interpolated propagation (CIP) method was applied to the 2-dimensional molecular gas-film lubrication (MGL) equation. First, static pressures caused by running discrete track media (DTM) are shown quantitatively (Case I). Secondly, dynamic pressures caused by the translational motion of a running disk (Case II) and a running wavy disk (Case III) having small amplitudes under a fixed finite-width slider were analyzed by the CIP method and were found to be in good agreement with the results obtained by the linearized analysis. The dynamic pressure generated when a running wavy disk has a large amplitude under a fixed finite-width slider accounting for the van der Waals pressure were shown quantitatively. Dynamic pressures caused by moving single projeciton (Case IV) and running disk with step (Case V) under a fixed finite-width slider were also analyzed by the CIP method and were shown quantitatively.
