【摘要】 本文给出了最新浮动磁头的气动力静态特性。文中采用了数值方法求解滑流条件下滑块轴承的修正雷诺方程,描述了运用积分离散、Newton—Raphson线性化方法的有限差分法,给出了运用Booy方法的基本思想所形成的线性化有限差分方程组的数值计算方法,计算出在压缩数很大范围内(A可达5000以上)浮动磁头的气动参数。更多还原

【Abstract】 The latest magnetic heads require lightly loaded air-lubricated slider bearings operating with gas film thicknesses less than 0.5 *m to achieve high reading density. This paper presents the static characteristics of the gas-dynamic forces of magnetic heads. Numerical analysis is applied to the modified Eeynolds equation for slider bearings with large bearing number under slip-flow conditions. Finite difference method and a numerical procedure, using the integral discretization and the Newton-Raphson method to linearize the non-linear finite difference equations, are described. To solve the linearized finite difference equations, a numerical solution technique, using the fundamentals of Booy’s method with Coleman’s improvement is presented. The normalized load carrying capacity and the centre of lift versus some normalized parameters, the central pressure profile, the pressure distribution for one-half the width of the magnetic head, and MMFP effects on the load carrying capacity are presented for a wide range of the compressibility numbers (more than 5,000). The new calculation procedure developed here converges rapidly.更多还原