Dynamic reliability evaluation of buried corroded pipeline under rockfall impact

• Autorzy: Wang Yifei , Xie Mingjiang , Su Chun

Identyfikatory

DOI

10.17531/ein.2022.2.9

• Języki publikacji: EN

Abstrakty

EN

Load impact, such as the rockfall, may bring significant threats to the integrity management of pipeline. This study is intended to evaluate the reliability of buried pipeline under rockfall impact, and so as to reduce the possible failure and unnecessary downtime. Firstly, the dynamic response of the buried pipeline under load is analyzed by Euler Bernoulli foundation beam. After that, the process of rockfall impact on buried corroded pipeline is simulated with nonlinear finite element method. Furthermore, the influence of rockfall’s parameters (including rockfall mass, impact velocity, impact position, etc.) on the pipeline’s equivalent stress is quantitatively analyzed. Eventually, a time-varying reliability model is established to calculate the failure probability. The results indicate that the mass and velocity of the rockfall have obvious influence on the pipeline’s failure probability, and the change of impact’s position has small influence. The proposed method can provide a theoretical reference for the design and maintenance of buried pipeline.

Słowa kluczowe

EN

buried pipeline; rockfall impact; finite element simulation; dynamic reliability

• Wydawca: Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne
• Czasopismo: Eksploatacja i Niezawodność
• Rocznik: 2022
• Tom: Vol. 24, no. 2
• Strony: 275--288
• Opis fizyczny: Bibliogr. 37 poz., rys., tab.

Twórcy

autor

Wang Yifei

• Southeast University, School of Mechanical Engineering, Nanjing 211189, China

autor

Xie Mingjiang

• Southeast University, School of Mechanical Engineering, Nanjing 211189, China

autor

Su Chun

• Southeast University, School of Mechanical Engineering, Nanjing 211189, China
• Hunan University of Science and Technology, Hunan Provincial Key Lab of Health Maintenance for Mechanical Equipment, Xiangtan 411201, Hunan, China

• https://orcid.org/0000-0002-5523-1469

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).