摘要
对硬盘系统的动特性进行了数值仿真 ,其中磁头结构为 IBM3 3 70 ,润滑模型中引入了二阶泊松流因子 ,保证建模精度。利用摄动法建立了气体润滑的静动态方程 ,并给出了数值解。讨论了最小膜厚度、磁盘转速和磁头倾角对空气膜刚度系数、阻尼系数以及对系统稳定性的影响。结果表明 ,通过最小膜厚度、磁盘转速和磁头倾角的优化可以改善硬盘的设计。其中磁头倾角的优化可以同时满足硬盘高刚度和高稳定性的要求。
The stiffness and damping coefficient of a slider gas bearing operating are calculated and dynamic numerical simulations of hard disk are presented in this paper The Poiseuille flow factor is introduced in the lubrication model, which reflects Second-order slip model Perturbation method is employed to set up the static and dynamic lubrication model on the head-disk interface and numerical solutions are given The effects of slider trailing edge spacing, angular frequency and pitch angle on the dynamic responses as well as stiffness and damping coefficient are discussed. It is concluded that the suitable choice of slider trailing edge spacing, angular frequency and pitch angle can optimize the design of the hard disk and the optimization of pitch angle is a best way.
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2002年第3期256-259,共4页
China Mechanical Engineering
基金
国家自然科学基金资助项目 ( 5 980 5 0 0 3)
江苏省应用基础基金资助项目
