S9  Fenômenos Não-Lineares e Caóticos em Engenharia    Titulo: ESCAPE IN A NONLINEAR ELECTRO-MECHANICAL SYSTEM   Resumo : ABSTRACT. IN THIS WORK IT IS INVESTIGATED A PARTICULAR SYSTEM CONSISTING OF A PENDULUM WHOSE POINT OF SUPPORT IS VIBRATED ALONG A HORIZONTAL GUIDE BY A TWO BAR LINKAGE DRIVEN FROM A DC MOTOR, CONSIDERED AS A LIMITED POWER SOURCE. THIS SYSTEM IS NONIDEAL, SINCE THE SPEED OF THE MOTOR IS INFLUENCED BY THE RESPONSE OF THE SYSTEM, REVEALING A VARIETY OF NONLINEAR PHENOMENA. THE BIFURCATIONAL BEHAVIOR IS COMPLEX MAINLY NEAR A SECONDARY RESONANCE REGION, WHERE THE ESCAPE PHENOMENON IS OBSERVED. DURING PASSAGE THROUGH THE CRITICAL SPEED, AN IMPORTANT CHARACTERISTIC APPEARS, WHERE THE SYSTEM MAY PASS THROUGH THIS REGION REACHING A LIMITED ATTRACTOR OR IT MAY ESCAPE FROM THE POTENTIAL WELL TO A REMOTE ATTRACTOR. KEYWORDS: NONIDEAL SYSTEM, PENDULUM, ESCAPE.     Autores : Balthazar, José Manoel Belato, Débora 0 Mook, Dean T. Weber, Hans Ingo     Trabalho Completo :   COBEM99 | Comissão  Organizadora | Palestras | Sessões Técnicas | Autor | Simpósios e Sessões Especiais | Revisores |  Título  dos  Trabalhos | Local