Analysis of dynamic behavior and machine performance on a free-piston-type Vuilleumier cycle heat pump

Hiroshi Sekiya, Kiyondo Kobayashi, Eiji Fukuda, Takashi Susai, Fusao Terada

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

A method used in analysis of dynamic behavior and machine performance on a free-piston-type Vuilleumier cycle (FPVM) machine is constructed as a nonlinear numerical model, because of a force acting on the surface of the moving part from a working gas and viscous damping due to the working gas flow. This model consists of three equations of motion for a hot displacer, a cold displacer and a casing, which are solved simultaneously by the Adams-Moulton method, and an equation of the instantaneous working gas pressure obtained on the supposition of an isothermal analysis on the Vuilleumier cycle machine. The cold displacer of the FPVM machine is combined with the hot displacer by a gas spring. A vibration model for those displacers is newly presented to verify a gas spring mechanism. In addition, self-excited vibration and forced vibration as to the FPVM heat pump are investigated.

Original languageEnglish
Pages (from-to)1581-1588
Number of pages8
JournalNippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume61
Issue number584
Publication statusPublished - 1995 Apr
Externally publishedYes

Fingerprint

heat pumps
pistons
Pistons
Pumps
cycles
Gases
vibration
gases
viscous damping
forced vibration
casing
Equations of motion
gas pressure
gas flow
Flow of gases
Numerical models
equations of motion
Damping
damping
Hot Temperature

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

Analysis of dynamic behavior and machine performance on a free-piston-type Vuilleumier cycle heat pump. / Sekiya, Hiroshi; Kobayashi, Kiyondo; Fukuda, Eiji; Susai, Takashi; Terada, Fusao.

In: Nippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, Vol. 61, No. 584, 04.1995, p. 1581-1588.

Research output: Contribution to journalArticle

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