Analysis of Self-excited Vibration Mechanism of Check Valves by Use of CFD with Moving Boundary Method

Check-valves often generate severe vibration and noise around the valves. Plug vibrations, which are clearly characterized as the pendulum-like oscillations with both lateral and longitudinal vibrations, were observed through the visualization using a high-speed camera. A two-dimensional numerical simulation based on a coupled analysis of the plug motion with the fluid flow was performed to precisely analyze the phenomena. The simulated results show that the similar plug vibrations were successfully reproduced and found to be self-excited, and that the longitudinal vibration might dominantly affect the noise-generation, because the longitudinal vibration generates pulsations of flow-rate more strongly than the lateral vibration.

• Record URL:
  • https://doi.org/10.11351/jsaeronbun.43.1393
• Record URL:
  • https://www.jstage.jst.go.jp/article/jsaeronbun/43/6/43_1393/_pdf
• Record URL:
  • https://scholar.google.com/scholar_lookup?title=Analysis%20of%20Self-excited%20Vibration%20Mechanism%20of%20Check%20Valves%20by%20Use%20of%20CFD%20with%20Moving%20Boundary%20Method&author=T.%20Watanabe&author=H.%20Wako&author=N.%20Yasuo&author=M.%20Nakano&publication_year=2012
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/02878321
• Authors:
  • Watanabe, Takashi
  • Wako, Hiroshi
  • Yasuo, Naoi
  • Nakano, Masami
• Publication Date: 2012-11

Language

• English
• Japanese

Media Info

• Media Type: Digital/other
• Features: Figures; Photos; References;
• Pagination: pp 1393-1399
• Serial:
  • Transactions of Society of Automotive Engineers of Japan
  • Volume: 43
  • Issue Number: 6
  • Publisher: Society of Automotive Engineers of Japan
  • ISSN: 0287-8321
  • EISSN: 1883-0811
  • Serial URL: https://www.jstage.jst.go.jp/browse/jsaeronbun
• Publication flags:

  Open Access (libre)

Subject/Index Terms

• TRT Terms: Confined flow; Flow visualization; Fluid dynamics; Machine valves; Mechanical vibration; Noise sources; Simulation
• Subject Areas: Highways; Vehicles and Equipment;

Filing Info

• Accession Number: 01709466
• Record Type: Publication
• Source Agency: Japan Science and Technology Agency (JST)
• Files: TRIS, JSTAGE
• Created Date: Jun 27 2019 2:54PM