| With the rapid development of commerce globalization, transportation is becoming more and more important. Because of larger loading capability at one time and lower transport costs, container becomes the preferred transport choice for large enterprises at home and abroad. As the main equipment, reasonable design and safety operation of containers have become key factors to the success of the transportation. Therefore, it is quite necessary to study the actual stress state of the container during transportation and improve its structural design in the premise of safety. Tank container is the most representative container and the tank belongs to the third type pressure vessel. Loadings applied on the container include internal or external pressure, pressure, inertial force and impact force caused by liquid sloshing. In this thesis, finite element analysis was performed on the strength and liquid sloshing of a tank container.A finite element model was established for a tank container using ANSYS. The inertial force applied on the container during the transportation was equalized as a static loading. Four load cases under room temperature and-40℃were considered for the stress analysis and strength check was carried out confirmed to the standard of design by analysis for pressure vessels. Results show that all strength requirements for the tank container are satisfied. Meanwhile, it is found that the stress intensity of the tank depends mainly on the internal pressure, but the stress intensity of the framework is determined by the inertial force.To study the bumping problem during transportation, medium sloshing in the tank in the case of upward bumping of the container was simulated using fluid analysis software Fluent. Liquid distribution was obtained during the sloshing process as a function of time. Pressure and impact force on the container body were also given which may be helpful for the optimized design and safe operation of tank containers. |
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