S9  Fenômenos Não-Lineares e Caóticos em Engenharia
 
 Title:
ESCAPE IN A NONLINEAR ELECTRO-MECHANICAL SYSTEM
 
Summary :
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.  
 
Author :
Balthazar, José Manoel
Belato, Débora 0
Mook, Dean T.
Weber, Hans Ingo
 
 
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