COMPARAÇÃO TEÓRICO EXPERIMENTAL DA RESPOSTA DINÂMICA DE UM SISTEMA DE UM GRAU DE LIBERDADE COM E SEM ABSORVEDOR DINÂMICO DE VIBRAÇÃO

Resumo

The constant progress of the civil construction provided by the increase of the resistance of
materials and control of executive methods, has been designed and built increasingly slender structures
and winning greater spans. However, these structures are more subject to vibrations and have a smaller
capacity to dissipate energy. Therefore, it is necessary for a study to characterize mathematically
external dynamic actions, analyzing the consequences of the fluctuations, for an assertive sizing of the
components and connections of the structure. A technique developed to control unwanted vibrations is
the use of Tuned Mass Dampers (TMD’s), which can be of type mass spring or pendulum type. In this
study, comparison between experimental data and theorical calculations will be made for one degree of
freedom system formed by a rod pivoted at one end and supported by a spring at another end. From the
dynamic characteristics of the system, a TMD will be fixed to the structure for vibration control. The
results demonstrated that the TMD controlled the vibration of the resonance system.