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Análise de Vibração de Elemento Rotativo Defeituoso

Análise de Vibração de Elemento Rotativo Defeituoso


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About the Book

Equipamento rotativo puro é mais comumente encontrado em sistemas mecânicos, que são submetidos a forças externas indesejadas, principalmente devido ao desbalanceamento do rotor e desalinhamento do eixo. Essas forças atuam para excitar o sistema, resultando em vibrações indesejadas. Devido a elas, podem ocorrer danos nos mancais que representam uma séria ameaça à vida útil e operação da máquina. Estes danos nos rolamentos, se não forem identificados e controlados, levam a uma falha catastrófica do rolamento, por sua vez, a uma falha do sistema muito antes da vida útil prevista. A vibração geralmente ocorre na freqüência de operação da máquina, mas às vezes os harmônicos mais altos também são excitados. O presente trabalho é uma tentativa de investigar as características de vibração do sistema mecânico rotativo, que danificou o rolamento montado sobre o eixo oscilante. Os sinais de vibração são adquiridos através de acelerômetro montado em uma das carcaças dos rolamentos. A análise FFT dos dados adquiridos revelou a resposta estável de um rolamento saudável e danificado em condições de operação. Os testes com martelos de impacto retrataram as freqüências naturais para diferentes comprimentos de sobre-excitação do eixo.


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Product Details
  • ISBN-13: 9786203600094
  • Publisher: KS Omniscriptum Publishing
  • Publisher Imprint: Edicoes Nosso Conhecimento
  • Height: 229 mm
  • No of Pages: 64
  • Spine Width: 4 mm
  • Width: 152 mm
  • ISBN-10: 6203600091
  • Publisher Date: 06 Apr 2021
  • Binding: Paperback
  • Language: Portuguese
  • Returnable: N
  • Weight: 159 gr


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