Pressure distribution measurement on a rotating disk surface by pressure-sensitive paint

Tomohiro Kameya, yu Matsuda, Hiroki Yamaguchi, Yasuhiro Egami, Tomohide Niimi

Research output: Contribution to journalArticle

Abstract

A pressure-sensitive paint (PSP) measurement technique is a non-contact optical method based on the oxygen quenching of its luminescence. By using PSP, we measured the pressure distribution on the disk in a hard disk drive, which is difficult to measure by conventional contact methods such as pressure taps. In the PSP measurement, we have to take the temperature non-uniformity on the rotating disk into consideration because the temperature distribution causes measuring error. We employed pyrene sulfonic acid (PySO3H) as a luminophore of PSP, which has small temperature dependency at appropriate wavelength of the luminescence, and successfully obtained the pressure distribution on the disk rotated at various speeds (10 000-20 000 rpm). The result showed that the pressure is higher at the disk outside than at the center, and forms a concentric circle distribution. In addition, we found that the pressure difference between the inner and outer region of the disk increases as a square of disk rotation speed and a decrease in the distance between the co-rotating adjacent disks.

Original languageEnglish
Pages (from-to)3002-3007
Number of pages6
JournalNihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C
Volume76
Issue number771
Publication statusPublished - 2010 Nov 1
Externally publishedYes

Fingerprint

Rotating disks
Paint
Pressure distribution
Luminescence
Hard disk storage
Pyrene
Quenching
Temperature distribution
Wavelength
Temperature
Oxygen
Acids

Keywords

  • Hard disk drive
  • Measurement
  • Pressure distribution
  • Pressure-Sensitive paint
  • Rotary machinery
  • Vibration coupled with fluid motion

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

Cite this

Pressure distribution measurement on a rotating disk surface by pressure-sensitive paint. / Kameya, Tomohiro; Matsuda, yu; Yamaguchi, Hiroki; Egami, Yasuhiro; Niimi, Tomohide.

In: Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C, Vol. 76, No. 771, 01.11.2010, p. 3002-3007.

Research output: Contribution to journalArticle

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