2023 Volume 79 Issue 15 Article ID: 22-15031
Various damages to SUS panel tanks have been reported due to the earthquakes. These causes are due to the bulging vibration. The bulging vibration is a coupled vibration interacted the wall structure and fluid by short-period seismic motion. However, there are no design standards for bulging vibration, and it is necessary to establish those standards. In this paper, we carried out the time history response analysis of the fluid structure interaction with changing attack angles. This analysis clarifies the weak points of SUS panel tanks when the bulging vibration occurs. As a result, it was found to be maximum of the displacement at the attack angle 0°. As for the von Mises stress, the corner members are the weak points regardless of the attack angles.
