Desenvolvimento de uma bancada didática para projetos de absorvedores dinâmicos de vibração

Abstract

The present work is the development of a didactic workbench, which allows the simulation of an earthquake or an excitation by the base of a certain object. All steps of construction, from the project part to the construction part, were reported. After construction, experiments were performed in a building prototype built in bamboo, to analyze the flexural vibration modes of each natural frequency and compare with the vibration modes obtained by simulation in the Ansys program. The work studied and applied dynamic vibration absorbers, to decrease the vibration amplitudes in the frequencies that meet the prototype resonance points. The main results were: identification of the natural frequencies that cause resonance, significant reduction of vibration caused by the seismic shaking and obtaining videos and images of the four flexion vibration modes.