小型冷凍機の振動解析  [in Japanese] Vibration Analysis of Cryocoolers  [in Japanese]

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Author(s)

Abstract

The vibrations of a Gifford-McMahon (GM) and pulse-tube (PT) cryocoolers were measured and analyzed. The vibrations of the cold stage and cold head were measured separately to investigate their vibration mechanisms. The measurements were performed while maintaining the thermal conditions of the cryocoolers at a steady state. We found that the vibration of the cold head for the 4 K PT cryocooler was two orders of magnitude smaller than that of the 4 K GM cryocooler. On the other hand, the vibration of the cold stages for both cryocoolers was of the same order of magnitude. From a spectral analysis of the vibrations and a simulation, we concluded that the vibration of the cold stage is caused by elastic deformation of the pulse tubes (or cylinders) due to the pressure oscillation of the working gas.

Journal

  • TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan)

    TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan) 38(12), 693-702, 2003-12-25

    CRYOGENICS AND SUPERCONDUCTIVITY SOCIETY OF JAPAN

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Cited by:  2

Codes

  • NII Article ID (NAID)
    10012477701
  • NII NACSIS-CAT ID (NCID)
    AN00333419
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    03892441
  • NDL Article ID
    6814636
  • NDL Source Classification
    ZM35(科学技術--物理学)
  • NDL Call No.
    Z15-388
  • Data Source
    CJP  CJPref  NDL  J-STAGE 
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