Abstract
Fatigue failure of the pipe system has become a critical problem in the petrochemical plant and is caused by the acoustic-induced vibration and the fluid-induced vibration.These vibrations simultaneously occur and so,complicated phenomena are established in the pipe system.This paper focuses on the AIV separated from the FIV and the effect of sound waves propagating in pipe on vibration of the pipe wall is discussed.The sound pressure wave at fixed frequency is generated using a pulsating-flow generator and its acoustic energy is emitted into the pipe.The pipe vibration is measured using strain gages and the vibration mode is analyzed.The expermimental result is compared with the computational one by FEM and a good agreement is obtained between them.
