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Numerical analysis on overturn center of embedded large diameter cylinder structure

LI Fei(College of Ocean Environment & Eng.,Shanghai Maritime Univ.,Shanghai 200315,China)  
For the bigger difference in the basic hypothesis,analytic methods,parameters,calculation results and so on about the structural stability of embedded large diameter cylinder,ABAQUS is used to simulate its overturn under vertical load and horizontal load.In the method,the overturn center is found by the displacement change,the change rule of overturn center with the change of parameters is analyzed.Although the error between the simulation result and the calculation result is about 20 percent,the numerical solution and the calculation solution show the same rule about the overturn center displacement change with the change of parameters.So it is helpful for the analysis on overturn stability of embedded large diameter cylinder structure.
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