Analysis of dynamic characteristics of a HDD spindle system supported by ball bearing due to temperature variation

被引：0

作者：

G. H. Jang

D. K. Kim

J. H. Han

C. S. Kim

机构：

[1] PREM,

[2] Department of Mechanical Engineering,undefined

[3] Hanyang University,undefined

[4] 17,undefined

[5] Haengdang-dong,undefined

[6] Sungdong-ku,undefined

[7] Seoul,undefined

[8] 133-791,undefined

[9] Korea E-mail: ghjang@hanyang.ac.kr,undefined

[10] Nano Storage Lab.,undefined

[11] Samsung Advanced Institute of Technology,undefined

[12] Suwon,undefined

[13] Korea,undefined

来源：

Microsystem Technologies | 2003年 / 9卷

关键词：

Contact Angle; Temperature Variation; Elevated Temperature; Element Model; Finite Element Model;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

This paper presents a method to investigate the characteristics of a ball bearing and the dynamics of a HDD spindle system due to temperature variation. Finite element model is developed for the rotating and stationary parts of a HDD spindle system separately to determine their thermal deformations by using ANSYS, a finite element program. Then, the relative position of the rotating part with respect to the stationary part is determined by solving the equilibrium equation of the contact force between upper and lower ball bearings. The validity of the proposed method is verified by comparing the theoretical natural frequencies of a HDD spindle system with the experimental ones before and after temperature variation. The proposed method makes it possible to predict the characteristics of a ball bearing and the dynamics of a HDD spindle system due to temperature variation. It shows that the elevated temperature results in the increase of contact angle and the decrease of bearing deformation, contact force and bearing stiffness, which result in the decrease of the natural frequencies of a HDD spindle system.

引用

页码：243 / 249

页数：6