Experimental Investigation of Liquid Sloshing Impact Load in a Large-Scale Prismatic Tank
Zhi-jun WEI1, Shi-lun RUAN1, Qian-jin YUE1, Bin XIE2
1. State Key Laboratory of Sturcutral Analysis for Industrial Equipment, Dalian University of Technology, Dalian, Liaoning 116024, China 2. CNOOC Research Institute, Beijing 100027, China
Liquid sloshing load is one of the key issues in the design of the cargo container system of the very large-scale floating liquefied natural gas (FLNG) facility. Experimental investigation on liquid slamming in a large-scale prismatic tank under sway, surge, and roll excitations is performed, aiming at the time history of slamming pressure, the distribution of the largest impact pressure and the most serious filling rates. A series of experiments in a large-scale prismatic model is carried out. Pressure sensor array is employed to record the variation of impact pressure. The experimental results illustrate that the value between 60%~70% is the most serious filling rate. Furthermore, the position with change of curvature along the bulkhead is found to be the most serious position for tank structure. The results are useful for the research and design associated with slamming load in prismatic tank.
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