A new numerical method to solve modified Reynolds equation for magnetic head/disk working in ultra-thin gas films  

作　　者：Howard H HU 

机构地区：[1]School of Engineering and Applied Science, University of Pennsylvania

出　　处：《Science China(Technological Sciences)》2008年第4期424-434,共11页中国科学（技术科学英文版）

基　　金：Supported by the Project of the State Key Basic Research and Development of China (Grant No. 2003CB716205)

摘　　要：The modified Reynolds equation for ultra-thin gas films between magnetic head; disk assembly is difficult to solve with conventional numerical methods, since the bearing number is very large; there exist boundary layers where pressure changes rapidly. An iterative finite difference algorithm is introduced to solve the nonlinear modified Reynolds equation, with special treatment for the abrupt change in the thickness of the gas film. The numerical results for two types of magnetic heads demonstrate that the scheme is effective.

关 键 词：finite DIFFERENCE method ULTRA-THIN gas film LUBRICATION magnetic head/disk 

分 类 号：TB383.2[一般工业技术—材料科学与工程]