Title: 20318 Study on Vibration Phenomenon of High-Pressure Piping
Abstract: In a petroleum refining plant, piping system vibrates and often results in the fatigue failure of pipe joint. A lot of hydrocarbon gas is produced in the oil refining process in such a plant, which is burned off in the air. The gas is released by pressure valve with a loud noise and goes to a flare stack. The noise vibrates pipe and fluid in pipe. As a result, these resonate with each other and a strong vibration occurs. This phenomenon is called "Acoustic Induced Vibration". The mechanism of destruction due to AIV is not completely elucidated. In this paper, in order to clarify this fracture phenomenon, a pipe was experimentally fluctuated using sound wave as a vibration source and the numerical analysis by FEM was carried out.