Chaos in a hydraulic control valve

S. Hayashi, T. Hayase, T. Kurahashi

Research output: Contribution to journalArticlepeer-review

61 Citations (Scopus)


In this paper we have studied the instability and chaos occurring in a pilot-type poppet valve circuit. The system consists of a poppet valve, an upstream plenum chamber, a supply pipeline and an orifice inserted between the pelnum and the pipeline. Although the poppet valve rests on the seat stably for a supply pressure lower than the cracking pressure, the circuit becomes unstable for an initial disturbance beyond a critical value and develops a self-excited vibration. In this unstable region, chaotic vibration appears at the period-doubling bifurcation. We have investigated the stability of the circuit and the chaotic phenomenon numerically, and elucidated it by power spectra, a bifurcation diagram and Lyapunov exponent calculations, showing that the phenomenon follows the Feigenbaum route to chaos.

Original languageEnglish
Pages (from-to)693-716
Number of pages24
JournalJournal of Fluids and Structures
Issue number6
Publication statusPublished - 1997 Aug

ASJC Scopus subject areas

  • Mechanical Engineering


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