Floating wind turbine foundation fatigue analysis method, electronic device and computer-readable storage medium

By using finite element modeling and Markov matrix analysis, unit groups that meet fatigue life requirements were screened out, solving the accuracy and efficiency issues of fatigue analysis in the design of large-scale floating wind turbine foundations, and realizing the safety and durability assessment of structures in complex marine environments.

CN120597658BActive Publication Date: 2025-10-03DALIAN UNIV OF TECH
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Patent Information

Application Number
CN202511101690.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-08-07
Publication Date
2025-10-03
Estimated Expiration
2045-08-07

AI Technical Summary

Technical Problem

Existing technologies make it difficult to perform accurate and efficient fatigue analysis in the design of large-scale floating wind turbine foundations, especially considering the nonlinear effects of wind turbine loads and complex marine environment loads. This results in a large computational workload and makes it difficult to meet the time requirements of engineering projects.

Method used

Finite element modeling is used to divide the floating wind turbine foundation into several unit groups. The fatigue damage of the unit groups is calculated by equivalent fatigue load and Markov matrix analysis method. Combined with spectral analysis and time domain analysis methods, the unit groups that meet the fatigue life requirements are gradually screened out, reducing the number of units in subsequent time domain analysis.

Benefits of technology

It improves the accuracy and efficiency of fatigue analysis and reduces the number of units in time domain analysis. It is suitable for the design of large-scale floating wind turbine foundations and ensures the safety and durability of the structure within its design life.

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Abstract

The invention relates to a floating wind turbine foundation fatigue analysis method, an electronic device and a computer-readable storage medium, which belong to the field of structural fatigue analysis. In order to solve the problem of accurately and efficiently performing fatigue analysis on the design of large-scale floating wind turbine foundations, the key points are to distribute the units of the finite element model of the floating wind turbine foundation to obtain a first unit group; calculate the fatigue damage of the first unit group; combine the units according to whether the fatigue damage in the first unit group meets the damage threshold and obtain a second unit group; calculate the fatigue damage of the second unit group; set the second unit group in the second unit group whose fatigue damage does not meet the damage threshold as a third unit group, and calculate the fatigue damage of the units in the third unit group; perform time-domain fatigue analysis on the units in the third unit group whose fatigue damage does not meet the damage threshold, and judge whether the units in the third unit group meet the fatigue life requirements based on the time-domain fatigue analysis.
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