Analysis of the oil injection process in fluid dynamic bearings of the spindle motor of computer hard disk drives

被引：2
|
作者：
Jung, Yeonha [1 ]
Jang, Gunhee [1 ]
Jung, Kyungmoon [1 ]
Jang, Hokyung [1 ]
机构：
[1] Hanyang Univ, Dept Mech Engn, Seoul 133791, South Korea
来源：
MICROSYSTEM TECHNOLOGIES-MICRO-AND NANOSYSTEMS-INFORMATION STORAGE AND PROCESSING SYSTEMS | 2013年 / 19卷 / 9-10期
关键词：
MOTION;
D O I：
10.1007/s00542-013-1841-9
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This paper numerically and experimentally investigates the oil injection process of fluid dynamic bearings (FDBs). Compressible air, which is governed by the ideal gas law, is introduced to model a nearly perfect vacuum. The two-phase flow of compressible air and oil is determined by the Navier-Stokes equation, the continuity equation, and the volume of fluid method. The proposed numerical method of this paper is verified by the oil injection experiment. This research discusses the possible sources of the air bubbles included in the lubricant of the FDBs in the oil injection process and proposes a novel oil injection process and FDBs to reduce the air bubbles.
引用
收藏
页码：1465 / 1474
页数：10
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