LNG independent C-type liquid cargo tank structural analysis method considering oscillation loads
A technology for structural analysis and cargo tanks, applied in geometric CAD, special data processing applications, instruments, etc., can solve problems such as the impact of sloshing load on the structural strength of tanks, and achieve the effects of low cost, enhanced accuracy, and no trouble.
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[0020] The following for the attached figure 1 The calculation flow of the present invention will be described in detail in conjunction with other drawings.
[0021] (1) Establish a CFD-based computational theoretical model
[0022] figure 2 It shows the CFD calculation theoretical model established for sloshing load prediction, and the model includes tank body 1 and reinforcement ring 2 .
[0023] (2) Determine calculation conditions and compile motion functions
[0024] Analyze the calculated working conditions to determine the motion amplitude of the independent C-type tank that excites LNG, including the amplitude of the translation direction and the angle amplitude of the rotation direction, as well as the frequency of the excitation motion; analyze the motion form and compile it into displacement or velocity function, as the input condition for the calculation.
[0025] (3) Divide the grid, set the calculation model and parameters and solve the problem
[0026] i...
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