Análise de movimentos periódicos em sistemas bi-linear com folga simétrica

• Ano de defesa: 2012
• Autor(a) principal: Pancieri, José Guilherme Pelição
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal do Espírito Santo; BR; Mestrado em Engenharia Mecânica; Centro Tecnológico; UFES; Programa de Pós-Graduação em Engenharia Mecânica
• Palavras-chave em Português: Nonlinear oscillations; Transition; Periodic motions; Stability; Transição; Movimentos periódicos; Periódicos; Oscilações não-lineares; Estabilidade; Movimento; Engenharia Mecânica; 621
• Link de acesso: http://repositorio.ufes.br/handle/10/6256

This work presents the mathematical modeling of a vibrational system with the harmonically excited base. The system has been investigated by several researchers exploring many aspects of the global dynamics. However, in most of the systems studied, the systems were modeled for a vibro-impact feature. In this system, the impacts are replaced by another visco-elastic set and the moment of transition is considered as a condition of periodicity. Periodicity conditions are applied on the state at the moment of transition in order to obtain a map of the next transition based on the state of the previous one. This nonlinear map is used to obtain the conditions of existence of periodic motions with specific patterns. Applying the existence conditions, the stability of the motion can be achieved by analyzing the eigenvalues of the linearized map while taking these conditions into account