Development of a novel finite element submodeling technique for fatigue reliability modeling and assessment of wind turbine blades
Year: 2024
Type: article
Abstract: Wind turbine blades are critical to the overall performance of wind turbine systems , and their fatigue resistance is paramount to ensuring long-term operational safety and reliability. Current investigations into blade fatigue behavior heavily rely on full-scale structural testing, a process that is both resource-intensive and time-consuming. As a result, there has been increasing interest in simulation-based methods. Existing simulation approaches face challenges including prolonged computation times, decreased accuracy, and limitations in analyzing critical blade components. In response to these challenges, this study presents a novel localized fatigue simulation analysis methodology based on the finite element submodeling technique specifically tailored for wind turbine blades, subsequently employed for fatigue reliability modeling and assessment. The manuscript begins by elucidating the fundamental principles and workflow of the submodeling technique-based finite element simulation method, demonstrating its effectiveness through rigorous experimental validation. Subsequently, the method is implemented to analyze fatigue and forecast the fatigue life of wind turbine blades. Moreover, a fatigue reliability model is constructed, taking into account uncertainties in blade fatigue performance. The results emphasize the improved simulation accuracy of the proposed method and its substantial implications for the advancement of blade safety analysis.
Source: Ocean Engineering
Institution: Guangzhou University
Language: English
Subfield: Aerospace Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $4,030
OpenAlex ID: W4405100568