Structural Strength Verification of Landing Gangway Installed on Unmanned Offshore Platform
Aiming at the problems of lacking safety capacity,poor adaptability and weak ability to overcome the sea conditions of the current unmanned platform landing system,a new type of unmanned platform landing gangway which can be modified according to the structural characteristics of the platform is designed.The new type of landing gangway can perform three degrees of freedom of movement:telescoping,pitch,and horizontal rotating,which can meet the landing requirements under various working conditions at sea.The structure of the gangway and the local structure of the jacket platform on which the gangway is installed are numerically simulated under operating conditions and extreme conditions.The displacement and equivalent stress under different working conditions are analyzed with the help of modeling and finite element software,and the local strength of the structure is checked,which can verify the feasibility of the landing gangway design of this unmanned platform.The results show that the design of the landing gangway can ensure the safety and stability of the daily work of the unmanned platform,and the overall design has high safety redundancy,which lays the foundation for the future offshore platform reconstruction.
NETL
NSTL
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