Residual Strength Modeling and Reliability Analysis of Wind Turbine Gear under Different Random Loadings

Gao, Jianxiong; Liu, Yuanyuan; Yuan, Yiping; Heng, Fei

doi:10.3390/math11184013

Cited by 3 publications

(1 citation statement)

References 58 publications

(68 reference statements)

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“…Based on the aforementioned structural analysis results, for the environmental loads with θ = 0 • , ψ = 0 • state, the stress state of the floating platform reaches its extreme value, compared with other working conditions. Considering the fact that fatigue failure mainly occurs in areas with high localized stress in the structure [41,42], the loading condition with θ = 0 • , ψ = 0 • is taken into consideration during the fatigue life analysis of the floating platform in this study. With the static structural analysis results, the time series loading spectrum obtained in Section 5.2 (shown in Figure 19) is applied to the floating platform.…”

Section: Fatigue Life Analysis Of the Floating Platformmentioning

confidence: 99%

Dynamic Behavior of a 10 MW Floating Wind Turbine Concrete Platform under Harsh Conditions

Chen,

Wang,

Zhang

et al. 2024

Mathematics

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To ensure the safe and stable operation of a 10 MW floating wind turbine concrete platform under harsh sea conditions, the fluid–structure coupling theory was used to apply wind, wave, and current loads to a concrete semi-submersible floating platform, and strength analysis was performed to calculate its stress and deformation under environmental loads. Moreover, the safety factor and fatigue life prediction of the platform were also conducted. The results indicated that the incident angles of the environmental loads had a significant impact on motion response in the surge, sway, pitch, and yaw directions. As the incident angles increased, the motion response in the surge and pitch directions gradually decreased, the motion response in the sway direction gradually increased, and the yaw motion response showed a trend of first increasing and then decreasing. In addition, the maximum stress of the floating platform under harsh sea conditions was 12.718 MPa, mainly concentrated at the connection of the middle column and pontoon and the connection of the heave plate and Y-shaped pontoon, which meets the use strength requirements. However, the stress concentration zone exhibited a significantly shorter fatigue life with a magnitude of 106. This implies a higher susceptibility to fatigue damage and the potential occurrence of structural failure. This research holds paramount significance in ensuring the safe and stable operation of floating wind turbine platforms, particularly under harsh sea conditions.

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Section: Fatigue Life Analysis Of the Floating Platformmentioning

confidence: 99%

Dynamic Behavior of a 10 MW Floating Wind Turbine Concrete Platform under Harsh Conditions

Chen,

Wang,

Zhang

et al. 2024

Mathematics

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Time-dependent reliability analysis for structures under multilevel loads based on fatigue damage theory

Cui,

Xie,

et al. 2024

Engineering Failure Analysis

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Generative Models for Source Code: Fine-Tuning Techniques for Structured Pattern Learning

Franzoni,

Tagliente,

Milani

2024

Technologies

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This study addresses the problem of how to automatically generate source code that is not only functional, but also well-structured, readable, and maintainable. Existing generative models for source code often produce functional code, but they lack consistency in structure and adherence to coding standards, essential for integration into existing application development projects and long-term software maintenance. By training the model on specific code structures, including a dataset with Italian annotations, the proposed methodology ensures that the generated code is compliant with both the functional requirements and the pre-defined coding standards. The methodology proposed in this study applies transfer learning techniques on the DeepSeek Coder model, to refine pre-trained models to generate code that integrates additional structuring constraints. By training the model on specific code structures, including a dataset with Italian comments, the proposed methodology ensures that the generated code meets both functional requirements and coding structure. Experimental results, evaluated using the perplexity metric, demonstrate the effectiveness of the proposed approach, which impacts the goals of reducing errors, and ultimately improves software development quality.

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Residual Strength Modeling and Reliability Analysis of Wind Turbine Gear under Different Random Loadings

Cited by 3 publications

References 58 publications

Dynamic Behavior of a 10 MW Floating Wind Turbine Concrete Platform under Harsh Conditions

Dynamic Behavior of a 10 MW Floating Wind Turbine Concrete Platform under Harsh Conditions

Time-dependent reliability analysis for structures under multilevel loads based on fatigue damage theory

Generative Models for Source Code: Fine-Tuning Techniques for Structured Pattern Learning

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