Design and characterization of miniature fluid dynamic bearing using novel multi-step elliptical grooves
Design and characterization of miniature fluid dynamic bearing using novel multi-step elliptical grooves
复制标题
采用新型多台阶椭圆槽的微型流体动力轴承的设计和表征
DOI：
--
复制
发表时间：
2013
期刊：
影响因子：
--
通讯作者：
Yu
中科院分区：
文献类型：
--
作者：
Chien;Chien;Yu
本文研究了一种用于小尺寸数据存储应用和微型风扇电机的新型多阶椭圆沟槽微型流体动力轴承的设计和特性。与传统的人字槽圆柱径向轴承(HGJB)不同，所提出的径向轴承只包含一组多阶椭圆槽(EGJB)。利用专有的流场分析软件对所提出的多步式EGJB的性能进行了数值表征。此外，为了减少最优全因子试验设计试验的次数(323次)，采用田口参数设计方法找出了多步EGJB的最优设计参数。结果表明，与本课题组在以前的研究中提出的传统的HGJB相比，提出的多步EGJB提高了承载能力。因此，建议的电机代表了现有和新兴的小型化主轴电机应用的另一种解决方案。
This paper investigates the design and characterization of a miniature fluid dynamic bearing using novel multi-step elliptical grooves for small-form-factor data storage applications and miniature fan motors. In contrast to conventional herringbone-grooved cylindrical journal bearings (HGJBs), the proposed journal bearing contains a single set of multi-step elliptical grooves (EGJB). The performance of the proposed multi-step EGJB is characterized numerically using proprietary flow field analysis software. In addition, to reduce the number of optimal full-factorial experimental design tests (323), the Taguchi parameter design methodology is used to find out the optimal design parameters of the multi-step EGJB. Results show that compared to the conventional HGJB presented by the current group in a previous study, the proposed multi-step EGJB improves the load capacity. Consequently, the proposed motor represents another solution for both existing and emerging miniaturized spindle motor applications.