11:25 AM - 11:40 AM
[24007-12-06] Estimation bulging frequency of the real scale tank by micro-tremor measurement and calculation of natural frequency (Proceedings of Symposium on Applied Mechanics)
Keywords:Bulging, Micro-tremor measurement, Calculation of natural frequency, SUS panel tank
Bulging is a coupled vibration interacted the wall structure and fluid by short-period seismic motion, which causes the damages of water tanks during an earthquake. In this paper, we carried out micro-tremor measurement and calculation of natural frequency for the SUS panel tank and estimated the natural frequency. As a result, the effectiveness of the micro-tremor measurement method has been proven. In addition, it is found that there is a risk of bulging occurring in this tank.