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Journal of the Brazilian Society of Mechanical Sciences and Engineering

Print version ISSN 1678-5878On-line version ISSN 1806-3691

Abstract

FENILI, A.; SOUZA, L. C. Gadelha de; BALTHAZAR, J. M.  and  GOES, L. C. S.. A brief comment on the dynamical behavior of a forced nonlinear slewing beam: 1. Superharmonic resonance. J. Braz. Soc. Mech. Sci. & Eng. [online]. 2005, vol.27, n.2, pp.205-208. ISSN 1678-5878.  http://dx.doi.org/10.1590/S1678-58782005000200014.

This paper describes the dynamical behavior of a nonlinear flexible beam (cubic nonlinearities considered) connected to a dc motor (responsible for the slewing motion) when the angular displacement of the slewing axis and its derivatives are considered to be of a harmonic type and the system is excited near a resonance (present due to the nonlinear contribution).

Keywords : Slewing structure; nonlinear vibrations; resonance; multiple scale method.

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