Integral Method for Flow Induced Transverse Vibrations Analysis of Flexible Pipes

INCAS Bulletin

Stefan SOROHAN¹  Viorel ANGHEL² 

[1] “POLITEHNICA” University of Bucharest, Strength of Materials Department, Splaiul Independentei 313, 060042, Bucharest, Romania, ;“POLITEHNICA” University of Bucharest, Strength of Materials Department, Splaiul Independentei 313, 060042, Bucharest, Romania, [e-mail];

关键词: pipeline;    fluid-structure interaction;    winkler foundation;    green’s functions;    fem;    vibrations;    stability;   

DOI  :  10.13111/2066-8201.2020.12.1.1

来源: DOAJ

【 摘 要 】

This paper reviews some existing studies and numerical methods used for flow induced transverse vibrations analysis of flexible pipes. An integral method, based on the use of Green’s functions, already used for different straight beam dynamic analysis is adapted for the proposed subject. This approximate method leads to a matrix formulation and to an eigenvalue problem for free vibration analysis. The presented approach is able to estimate also the critical fluid velocities. Effects of boundary conditions and of elastic foundation characteristics, Coriolis terms and of other parameters on dynamic behavior of a pipe, can be included. Some numerical examples are also presented for comparisons with results obtained by FEM or with other data from literature. They show good agreement.

【 授权许可】

Unknown