衝撃吸収材を用いた竜巻防護対策の事例紹介
概要
Shock absorber has been designed for power plant equipment against to the impact load of a tornado missile. Impact energy could be absorbed by axial deformation on the double pipe of aluminum alloy.The compression test was performed by changing material, diameter and thickness of pipe. The obtained stress displacement cave was used for the optimal design of shock absorber for the heavy oil tank.The response acceleration on the heavy oil tank against to the impact load was evaluated by dynamic finite element analysis.The effect of acceleration reduction using shock absorber was confirmed by detailed analysis model.Shock absorber was mounted on the outer surface of the heavy oil tank in Ikata Power Station Unit 3.
