ANSYS Simulation Research Of Deep Ocean Pressure Tank Design

The ocean, contains a large amount of natural resources, with the development of human society, more and more people aware of the importance of the ocean. However, we human beings have been able to leave our footprint on anywhere on the surface of the earth easily, and we can send astronauts into outer space, only few countries can swim on the bottom of seas, explore the secret of the deep ocean. High pressure environment restricted the human beings exploring the deep ocean. Underwater glider is a kind of new underwater robot combined with ocean buoy technology, by changing their net buoyancy (the difference between the gravity and buoyancy) and the location of the center of gravity relative body heart provides driving force of new type of underwater robot system. The research contents of the paper is to design a pressure tank of underwater glider, and by using the finite element analysis software ANSYS to study to solve the problems in the design process.The paper firstly introduces the domestic and foreign development of the underwater glider, and introduces the finite element analysis software ANSYS which is widely used in computer aided engineering. The paper also narrates the source of the research and its significance and main content.On this basis, the pressure tank structure of the underwater glider has carried on the new design, and using the ANSYS software to simulate the structural strength and stability performance in the depths of the high pressure condition, get the optimal design scheme. First of all, the paper designed the confirmed the structure and size of pressure tank according to the design requirements of underwater glider preliminary. pressure tank is cylindrical, and include pressure tank tube body and the end cover. Tube body was designed from different materials, and using ANSYS software to simulated tube body of different material. Change the wall thickness of the tube body to get their overall situation of deformation and stability respectively under the same load and constraint conditions. According to the simulation results to choose the appropriate tube body design. The optimal design scheme of pressure tank end cover is by comparing the different shapes and thickness under same load and constraint conditions of ANSYS simulation results. In the tube body and the end cover joint design the seal structure of pressure tank, and according to the national standard design seal and o-ring groove width and depth of the sizes.Eventually, the pressure tank, which was based on the optimal design scheme, passed the testing experiment of hydraulic reliability and blasting respectively. This experiment tested and verified the reliability of the pressure tank, and obtained its limiting pressure resistance data.