Computational study on linear vibration and thermal buckling of fluid-conveying pipes

M. Benkhettab , M. Dahmane , S. Zahaf , H. Ait Atmane , R. Bennai , L. Hadji , R. Madan

Abstract

In this study, the finite element method is applied to study the vibration characteristics of the Euler-Bernoulli beam. The theory is employed to derive partial differential equation of pipes carrying hot fluid flow. The numerical investigations have considered some geometrical and physical parameters to evaluate the effects on the vibration behavior of the pipe structure such as the fluid velocity, mass ratio, and thermal loads. The present analysis is validated by comparing the results with those available in literature, which has a good consistency. The study showed that an increase in temperature negatively affected the stability region and instabilities of the system, as the critical velocity approaches the instability of the fluid decreased regularly and corresponded to the decrease in the frequencies.

Key Words

elastic foundation; finite element method; fluid velocity; fluid velocity; pressure; thermal loads

Address

(1) M. Benkhettab — Laboratoire d'Elaboration et Caractérisation Physico Mécanique et Métallurgique des Matériaux, Department of Mechanics, Faculty of Science and Technology, Mostaganem University, B.P 188 - Mostaganem 27000, Algeria
(2) M. Dahmane — Department of Planning and Hydraulic Engineering, Higher National School of Hydraulics, Blida 9000, Algeria
(3) S. Zahaf — USTO-MB, Oran 31000, Algeria
(4) M. Dahmane, H. Ait Atmane, R. Bennai — Laboratory of Structures, Geotechnics and Risks, Department of Civil engineering, Faculty of Civil Engineering, Hassiba Benbouali University of Chlef, Algeria
(5) H. Ait Atmane, R. Bennai — Department of Civil Engineering, Faculty of Civil Engineering and Architecture, University Hassiba Benbouali of Chlef, Algeria
(6) L. Hadji — Department of Civil Engineering, University of Tiaret, Algeria
(7) R. Madan — Department of Mechanical Engineering, Graphic Era (Deemed to be University) Dehradun- 248002, Uttarakhand, India.

PDF Viewer

Preview is limited to the first 3 pages. Sign in to access the full PDF.

← Back to Volume 19, No. 2