Flow Induced Vibration of Shell & Tube Type Heat Exchanger (1st Report, Understanding of Phenomena)

• ISHIHARA Kunihiko

  Department of Mechanical Engineering, The University of Tokushima

書誌事項

タイトル別名

• (1st Report, Understanding of Phenomena)

抄録

This paper describes the phenomenon of flow-induced vibration in a shell & tube type heat exchanger. This type heat exchanger has often been used in the LPG gas carrier ship and has sometimes caused a fretting and finally comes to a fatigue failure. In flow-induced vibration, there are vortex-induced vibrations, fluid elastic instability and buffeting. Experiments are carried out by use of an actual heat exchanger in order to clarify the cause of tube vibration. The vibration of a lot of tubes is measured for various flow rates and the natural frequency and its damping ratio are also measured. As a result, the cause of the vibration of tubes is not the fluid elastic instability and the vortex-induced vibration but the buffeting due to the turbulence of upstream flow. The main reason is that these tubes are supported by many baffle plates with clearance and then the vibration system becomes the nonlinear.

収録刊行物

• Journal of Environment and Engineering

  Journal of Environment and Engineering 2 (2), 293-302, 2007

  一般社団法人 日本機械学会

キーワード

• Flow Induced Vibration
• Turbulence
• Flow Meter
• Fluid Elastic Instability
• Heat Exchanger
• Buffeting
• Vortex Induced Vibration

詳細情報

• CRID: 1390001205261667200
• NII論文ID: 130000076899
• DOI: 10.1299/jee.2.293
• ISSN: 1880988X
• Web Site: http://www.jstage.jst.go.jp/article/jee/2/2/2_2_293/_pdf
• 本文言語コード: en
• データソース種別:
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  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可