Implementation of an active damping system to reduce harmonic vibrations in a 3DOF model

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2005

Autores

Carlos Moutinho (Autor) FEUP; Álvaro Cunha (Autor) FEUP; Elsa Caetano (Autor) FEUP

Ata de Conferência Internacional

Título: II ECCOMAS Thematic Conference on Smart Structures and Materials, Lisboa, 2005

II ECCOMAS Thematic Conference on Smart Structures and Materials

Lisboa, 2005

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia civil

Outras Informações

Abstract (EN): This paper describes the work for a real implementation of an active damping system to reduce harmonic vibrations in a plane frame physical model with 3 degrees-of-freedom. For this purpose, it is suggested the use of an active mass damper commanded by a derivate controller which has the effect of increasing the modal damping coefficients in correspondence with a specific gain value. This control gain, as well as the system stability, was evaluated using the root-locus technique. The efficiency of the proposed control system to achieve pre-defined damping ratios was verified experimentally, by analyzing the free decay responses of the system after being excited at resonant frequencies.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 20