On the Vibration Control of Beams Using a Moving Absorber and Subjected to Moving Loads

Abstract

In this work, the Euler-Bernoulli linear beam theory is used to study the vibrations of simply supported beams subjected to moving loads and controlled by a moving vibration absorber. The beam is considered as a linear elastic continuous system and the vibration absorber is described as a linear spring-mass-damper system moving with a constant velocity along the beam. A modal expansion with five modes is used to model the lateral displacements of the beam and the Galerkin method is used to obtain a set of equations of motion which are, in turn, solved by the Runge-Kutta method. The obtained results show the importance of position and velocity of the damper on the vibration control of beams with moving loads.