2.Computational Mechanics

[12001-06-03] Time history response analysis using the natural frequency of the bulging for the real SUS panel tank (Proceedings of Symposium on Applied Mechanics)

*Kouta Shirai¹, Taisuke Ono², Hirokazu Hirano¹, Naotsugu Sato¹ (1. Chuo University, 2. NYK Co.Ltd.)

Keywords:SUS panel tank, Bulging, Natural frequency, Time history response analysis, Von Mises stress

Various damages to the SUS panel tanks have been reported due to the earthquake. These causes are due to the bulging. The bulging is a coupled vibration interacted the wall structure and fluid by short-period seismic motion. In this paper, we carried out the time history response analysis using the natural frequency of the bulging for the real SUS panel tank. This analysis clarifies the corner members is the weak points of the real SUS panel tank. As for the stress, stress concentration and buckling occur at the corner members.