磁头/盘界面超薄气体润滑雷诺方程的数值求解  

Numerical solution of Reynolds' equation for ultra-thin gas film lubrication at the head/disk interface

作　　者：魏浩东[1] 敖宏瑞[1] 姜洪源[1] 

机构地区：[1]哈尔滨工业大学机电工程学院哈尔滨150001

出　　处：《哈尔滨工业大学学报》2009年第9期33-37,共5页Journal of Harbin Institute of Technology

基　　金：哈尔滨工业大学优秀青年教师资助项目(HITQNJS.2008.009)

摘　　要：针对利用一般数值方法求解超薄气膜润滑雷诺方程时出现的不易收敛问题,提出了基于PDE工具求解气体润滑雷诺方程的方法,计算了具有不同克努森数和最小间隙的平板型滑块空气轴承和双轨型滑块的气膜压力分布.并求解了作用面上的轴承力.计算结果与利用MGL方法和DSMC方法求得的计算结果比较表明,该方法具有足够的求解精度,且收敛速度快.该方法为具有复杂磁头形貌特征的超薄气体润滑雷诺方程求解提供了一种方便、准确的方法.In order to improve the convergence occurred in solving the Reynolds＇ Equation for ultra-thin gas film lubrication numerically, a method to solve the equation based on the PDE toolbox was proposed. The pressure distributions on the surfaces of flat and two-trail sliders with different Knudson numbers and minimum gaps （flying height） between slider and disk were calculated, and the air bearing force was integrated conse- quently. It is showed that the calculated results are in good agreement with those obtained by MGL and DSMC methods. This method exhibits great convergence, indicating that it is beneficial to the solution of Reynolds＇ equation for the head/disk interface with complex slider profiles.

关 键 词：磁头/盘界面 超薄气体润滑 雷诺方程 空气轴承 

分 类 号：TH117.2[机械工程—机械设计及理论]