The Structural Reliability Analysis Of Partial Ship

Demanding by function the ship which is cared about in thesis has a square aperture on the deck.The reliability calculation of the apertural structure is as following:1. According to a practical ship structure, three-dimension spatial structure system is established by adopting hybrid girder element and SP panel element. Finite element model is also established based on a cabin of a ship (from ~#211 to ~#250) and is solved by the FEM program coded;2. Considered the material intensity, girder area, panel thickness and loads as stochastic variables, the structural element reliability index and the structural system reliability index are calculated by FORTRAN program;3. The patial structural element reliability index and the structural system reliability index are calculated by ANSYS, a famous commercial FEM software.4. From the calculation results of FORTRAN program and results of general-purpose finite element program ANSYS analysis know the reliability index of the ship partial structure is safe and reliable under load calculation compared to the reliability index of the common warship.