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Identification Method of Dynamic Coefficients of Fluid Film Bearings for HDD Spindle Motors 被引量:1

Identification Method of Dynamic Coefficients of Fluid Film Bearings for HDD Spindle Motors
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摘要 Fluid film bearings are widely used as support elements of rotating shaft for HDD (hard disk drive) spindle motors. Recently, the opportunity for the HDD spindle motors exposed to external vibration has been increasing because the HDDs are used for various information related equipments such as mobile PCs, car navigation systems. Hence, the rotating shaft has a possibility to come in contact with the bearing and it causes wear or seizure to the bearing surface. In order to avoid the problems, it is extremely important to enhance the dynamic characteristics of the fluid film bearings for spindles. However, verification from both theory and experiment of dynamic characteristics such as spring coefficients and damping coefficients is rare and few. In this paper, the bearing vibration characteristics when the HDD spindle is oscillated are investigated theoretically and experimentally. And then the identification method ofoil film coefficients of fluid film bearing spindles is described.
出处 《Journal of Mechanics Engineering and Automation》 2014年第2期123-129,共7页 机械工程与自动化(英文版)
关键词 TRIBOLOGY fluid film bearing hard disk drive spindle motor dynamic coefficient VIBRATION identification. 硬盘驱动器 油膜轴承 主轴电机 识别方法 动特性系数 汽车导航系统 动态特性 振动特性
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