July 2016

Fluid Flow

Experimental study of flow-induced pipe vibrations with guided end conditions

A study has been performed on the vibrations and stability of fluid-conveying pipes with guided ends. Guided ends are the most common type of pipe ends, as they enable the pipe to have free movement.

Sutar, S. M., Radhakrishna, M., Indian Institute of Chemical Technology; Babu, P. R., University College of Engineering, Osmania University

A study has been performed on the vibrations and stability of fluid-conveying pipes with guided ends. Guided ends are the most common type of pipe ends, as they enable the pipe to have free movement. The pipe rests on three different supports—thermocol, foam and spring. The influence of guided end conditions on the natural frequency was studied for both fluid flow and no-flow conditions. The pipe is considered as an Euler-Bernoulli beam, and a mathematical model was developed using Hamilton’s energy expressions to obtain the equation of motion for transverse vibrations of pipe. The solution for the differential equation is obtained by Muller’s bisection method. A FORTRAN program was develop

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