A Method for Estimating the Remaining Life of Offshore Platforms in Cold Regions
An offshore platform and life assessment technology, applied in special data processing applications, measuring devices, instruments, etc., to achieve accurate and reliable analysis results
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[0026] The present invention will be described in detail below in conjunction with specific embodiments.
[0027] The fatigue damage of an offshore platform is a gradual accumulation process. The main part of the fatigue life is the process of initiation and initiation of cracks, while the duration of crack propagation to fracture is relatively short, accounting for only a small part of the fatigue life. There is a reason why a crack must be repaired immediately. The existing remaining life assessment method does not consider the fatigue damage within the service life, but only calculates the fatigue life based on the state of the offshore platform at the time of the remaining life assessment (such as the corrosion status), which is exactly the same as the fatigue life calculation method of the new structure. The only difference is that the state of the structure is not the state of design, but the state of evaluation at that time. If the offshore platform has not suffered sever...
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