Dynamic stability of a cracked pipe conveying fluid and resting on a Pasternak elastic foundation

• Autorzy: Lolov Dimitar , Lilkova-Markova Svetlana

Identyfikatory

DOI

10.20858/sjsutst.2022.117.7

• Języki publikacji: EN

Abstrakty

EN

Pipeline transport is used worldwide in many sectors of the economy. Its main advantages are continuity of transport, large transportation volumes, small energy consumption, safety, reliability and high environmental benefits. However, the safety problems of pipes attract much interest in science and industry. This paper deals with a cracked pipe with a static scheme of a simply supported beam. It rests along its entire length on a Pasternak elastic foundation. The flowing fluid is considered non-compressible and heavy. The Galerkin method is employed to approach the problem numerically. Conclusions are drawn based on the influence of the crack and the parameters of the Pasternak elastic foundation on the critical flow velocity of the fluid.

Słowa kluczowe

EN

pipe; fluid; dynamic stability; crack; critical velocity; Pasternak elastic foundation

PL

rura; płyn; stabilność dynamiczna; pęknięcie; prędkość krytyczna

• Wydawca: Wydawnictwo Politechniki Śląskiej
• Czasopismo: Zeszyty Naukowe. Transport / Politechnika Śląska
• Rocznik: 2022
• Tom: z. 117
• Strony: 103--113
• Opis fizyczny: Bibliogr. 23 poz.

Twórcy

autor

Lolov Dimitar

• Faculty of Hydraulic Engineering, University of Architecture, Civil engineering and Geodesy, Hristo Smirnenski 1 Street, 1046 Sofia, Bulgaria

• https://orcid.org/0000-0002-8138-0265

autor

Lilkova-Markova Svetlana

• Faculty of Hydraulic Engineering, University of Architecture, Civil engineering and Geodesy, Hristo Smirnenski 1 Street, 1046 Sofia, Bulgaria

• https://orcid.org/0000-0003-0582-+8176

Bibliografia

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Uwagi

PL

Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024).