SciELO - Scientific Electronic Library Online

 
vol.78 número170MÖSSBAUER AND XRD ANALYSIS OF CORROSION PRODUCTS OF CARBONATED ALKALI-ACTIVATED SLAG REINFORCED CONCRETESMOTOR CURRENT SIGNATURE ANALYSIS AND NEGATIVE SEQUENCE CURRENT BASED STATOR WINDING SHORT FAULT DETECTION IN AN INDUCTION MOTOR índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Artigo

Indicadores

Links relacionados

  • Em processo de indexaçãoCitado por Google
  • Não possue artigos similaresSimilares em SciELO
  • Em processo de indexaçãoSimilares em Google

Compartilhar


DYNA

versão impressa ISSN 0012-7353

Resumo

VANEGAS-USECHE, LIBARDO V.; ABDEL-WAHAB, MAGD M  e  PARKER, GRAHAM A. MODELING OF AN OSCILLATORY FREELY-ROTATING CUTTING BRUSH FOR STREET SWEEPING. Dyna rev.fac.nac.minas [online]. 2011, vol.78, n.170, pp.204-213. ISSN 0012-7353.

A dynamic model of a novel oscillatory cutting brush for street sweeping in free rotation is developed. The bristles are modelled as cantilever beams. The equation of motion is determined through the theory of forced transverse vibrations of beams, and the solution is based on the normal-mode method. A sinusoidal angular speed function and a novel function, named VAP, are studied. The model is validated through finite element analyses. The effects of brush parameters on brush dynamics are identified. Notably, for the VAP function, a condition similar to resonance tends to occur in the stronger plane for bending deflections, when the frequency of the brush is an odd fraction of a natural frequency of the bristle for that plane. The model can also be applied to study the dynamics of a small-deflection cantilever beam, when the transverse external force is a squared, sinusoidal, triangle, or VAP wave.

Palavras-chave : Gutter brush; small deflection; transverse vibrations; resonance.

        · resumo em Espanhol     · texto em Inglês     · Inglês ( pdf )

 

Creative Commons License Todo o conteúdo deste periódico, exceto onde está identificado, está licenciado sob uma Licença Creative Commons