Mechanism of Hard Self-Excited Vibration in Poppet Valve (1st Report, The Case of Large Valve Lift)

Satoru Hayashi, Tetsuo Kurahashi, Toshiyuki Hayase

Research output: Contribution to journalArticle

Abstract

Hard self-excited vibrations occurring in a hydraulic system were analysed by a digital simulation method in the previous study. But the mechanism yet remains pending. In this paper, we investigate the mechanism of the hard self-excitation for a large valve lift by two methods, one of which is based on the shift of the vibration center by nonlinearity of the valve characteristics and the other is based on the energy balance into and out of the poppet. As a result, it is shown that the vibration is caused by asymmetry of the valve pressure-flow characteristics.

Original languageEnglish
Pages (from-to)2020-2025
Number of pages6
Journaltransactions of the japan society of mechanical engineers series c
Volume59
Issue number563
DOIs
Publication statusPublished - 1993 Jan 1
Externally publishedYes

Keywords

  • Energy Balance Method
  • Flow-Induced Vibration
  • Hard Self-Excitation
  • Nonlinear Vibration
  • Oil Hydraulics
  • Poppet Valve
  • Self-Excited Vibration

ASJC Scopus subject areas

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

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