DYNAMIC STABILITY OF A CRACKED PIPE CONVEYING FLUID AND RESTING ON A PASTERNAK ELASTIC FOUNDATION

被引：0

作者：

Lolov, Dimitar ^{[1
]}

Lilkova-Markova, Svetlana ^{[1
]}

机构：

[1] Univ Architecture Civil Engn & Geodesy, Fac Hydraul Engn, Hristo Smirnenski 1 St, Sofia 1046, Bulgaria

来源：

SCIENTIFIC JOURNAL OF SILESIAN UNIVERSITY OF TECHNOLOGY-SERIES TRANSPORT | 2022年 / 117卷

关键词：

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

D O I：

暂无

中图分类号：

U [交通运输];

学科分类号：

08 ; 0823 ;

摘要：

. 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 , 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.

引用

页码：103 / 113

页数：11

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