Design and characterization of miniature fluid dynamic bearing using novel multi‑step elliptical grooves

Chien Yu Chen, Chien-Sheng Liu, Yu Cheng Li

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

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 existingand emerging miniaturized spindle motor applications.

Original languageEnglish
Pages (from-to)91-100
Number of pages10
JournalMicrosystem Technologies
Volume21
Issue number1
DOIs
Publication statusPublished - 2015 Jan 1

Fingerprint

Bearings (structural)
Journal bearings
fluid dynamics
Fluid dynamics
grooves
journal bearings
Design of experiments
Fans
Flow fields
spindles
Data storage equipment
data storage
fans
form factors
emerging
flow distribution
methodology
computer programs

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Hardware and Architecture
  • Electrical and Electronic Engineering

Cite this

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abstract = "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 existingand emerging miniaturized spindle motor applications.",
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Design and characterization of miniature fluid dynamic bearing using novel multi‑step elliptical grooves. / Chen, Chien Yu; Liu, Chien-Sheng; Li, Yu Cheng.

In: Microsystem Technologies, Vol. 21, No. 1, 01.01.2015, p. 91-100.

Research output: Contribution to journalArticle

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