Non-destructive detection of high-strength wind turbine bolt looseness using digital image correlation

• Autorzy: Xie Wei-Guo , Zhou Peng , Chen Li-Yun , Gu Guo-Qing , Wang Yong-Qing , Chen Yu-Tao

Identyfikatory

DOI

10.24425/mms.2023.147948

• Języki publikacji: EN

Abstrakty

EN

Looseness of high-strength wind turbine bolts is one of the main types of mechanical failure that threaten the quality and safety of wind turbines, and how to non-destructively detect bolt loosening is essential to accurate assessment of operational reliability of wind turbine structures. Therefore, to address the issue of looseness detection of high-strength wind turbine bolts, this paper proposes a non-destructive detection method based on digital image correlation (DIC). Firstly, the mathematical relationships between the in-plane displacement component of the bolt’s nut surface, the bolt’s preload force loss and the bolt loosening angle are both deduced theoretically. Then, experimental measurements are respectively conducted with DIC with different small bolt loosening angles. The results show that the bolt loosening angle detection method based on DIC has a detection accuracy of over 95%, and the bolt’s preload force loss evaluated by the deduced relationship has a good agreement with the empirical value. Therefore, the proposed DIC-based bolt loosening angle detection method can meet the requirements of engineering inspection, and can achieve quantitative assessment of preload forces loss of wind turbine bolt.

Słowa kluczowe

EN

bolt looseness detection; digital image correlation; loosening angle; preload force loss

• Wydawca: Komitet Metrologii i Aparatury Naukowej PAN
• Czasopismo: Metrology and Measurement Systems
• Rocznik: 2023
• Tom: Vol. 30, nr 4
• Strony: 839--850
• Opis fizyczny: Bibliogr. 25 poz., rys., tab., wykr., wzory

Twórcy

autor

Xie Wei-Guo

• Yancheng Institute of Supervision & Inspection on Product Quality, Yancheng 224056, China

autor

Zhou Peng

• Yancheng Institute of Supervision & Inspection on Product Quality, Yancheng 224056, China

autor

Chen Li-Yun

• Yancheng Institute of Supervision & Inspection on Product Quality, Yancheng 224056, China

autor

Gu Guo-Qing

• School of Civil Engineering, Yancheng Institute of Technology, Yancheng 224051, China

autor

Wang Yong-Qing

• School of Electrical Engineering, Yancheng Institute of Technology, Yancheng 224051, China

autor

Chen Yu-Tao

• School of Mechanical Engineering, Yancheng Institute of Technology, Yancheng 224051, China

Bibliografia

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Uwagi

This work was supported by the Jiangsu Provincial Market Regulation Administration Science and Technology Project (No. KJ2022049).