Approximate solutions of large amplitude vibration of a string

Abstract

In the present study, the response of a flexible string with large amplitude transverse vibration is studied utilizing amplitude-frequency formulation, improved amplitude-frequency formulation and max-min approach. In order to verify the accuracy of these approaches, obtained results are compared with other methods such as variational approach method, variational iteration method, coupling Newton's method with the harmonic balance method and Hamiltonian approach. It has been found that for this problem, while amplitude-frequency formulation and max-min approach give the same results, improved amplitude frequency formulation is not an appropriate choice.Keywords nonlinear vibration, string, amplitude-frequency formulation, improved amplitude-frequency formulation and max-min approach.

The fastest insight into the large amplitude vibration of a string

“…By the Galerkin technology, we obtain the following nonlinear vibration of strings with large amplitude (Mahabadi & Pazhooh, 2018).…”